Phase System Research Articles

Mechanism and reactivity of the acyl chloride–alcohol system in the homogeneous phase and at the phase boundary

Mechanism and reactivity of the acyl chloride–alcohol system in the homogeneous phase and at the phase boundary

Comparative Analysis of the Culture of Pink Shrimp Farfantepenaeus brasiliensis and Pacific White Shrimp Litopenaeus vannamei in Biofloc System

Shrimp farming in the Biofloc Technology System (BFT) is already considered an alternative to the traditional culture. The bioflocs maintain the water quality and can be used as a food supplement for shrimp. The Pacific white shrimp Litopenaeus vannamei forms the basis for most of the production in BFT. However, its culture is limited by the low temperatures. Thus, the BFT culture potential of native species, such as the pink shrimp Farfantepenaeus brasiliensis, should be considered. The present study aimed to compare the cultures of F. brasiliensis and L. vannamei in the grow-out phase in the BFT system. The experiment comprised two treatments: (FB), grown out of F. brasiliensis, and (LV), grown out of L. vannamei. The study lasted 70 days and was conducted at the Marine Station of Aquaculture at the Federal University of Rio Grande, Rio Grande do Sul State, Brazil. The stocking density was 100 shrimp/m² for both species. The shrimp were fed twice a day with commercial food. The physicochemical parameters of the water were monitored throughout the experimental period. The results showed that all physicochemical parameters of the water remained within the tolerated limits for both species. However, during the growth phase in the BFT, it was observed that the L. vannamei shrimp showed a better zootechnical performance than F. brasiliensis. The results indicate that L. vannamei has a higher capacity to catch bioflocs as supplementary food, demonstrating a better response of that species to the BFT system in the grow-out phase compared to F. brasiliensis.

Composition design for modified nickel nanopastes containing a low-melting element as additive for pressureless nanojoining

The use of Ni nanopastes for joining applications offers advantages over other methods. However, since it is based on solid-state processes, a pressure must be applied during the joining process, which represents a challenge. To overcome this, a novel concept is presented in this work, which introduces a low-melting additive to the Ni nanopaste. A liquid phase provides the potential to achieve a joint seam formation with both a reduced porosity and better adhesion to the base material without technical pressure during the process. In a comprehensive selection, elements such as Mg, Al, Ge, In, Sn, and Pr are identified as suitable additives. Their properties in binary phase systems with nickel are discussed. A modified Ni nanopaste with Ge as additive was used in promising initial experiments, which is a good starting point for further investigations.

Optimal fractional-order series cascade controller design: A refined Bode’s ideal transfer function perspective

In process industries, cascade control is comprehensively used for disturbance attenuation. This manuscript presents the control of the non-minimum phase (NMP) system with dead time via a series cascade scheme. An improved fractional-filter-based control scheme encompassing inverse and dead time compensators with analytical tuning is proposed. The design hinges on an enhanced Bode’s ideal transfer function, which incorporates delay and NMP zero to deal with the system’s NMP and dead time. Particle swarm optimization (PSO) is utilized to obtain the optimal assessment of fractional filter-based controller settings by minimizing an objective function. Two benchmark problems are presented to test the efficacy of the recommended controller. The Riemann surface and sensitivity examination are used to realize the stability and robustness of the feedback design. Numerical simulations exhibit the superiority of the suggested controller for closed-loop results.

Design of 3-Phase Load Dividing Automatic System with Naive Bayes Method

The electric power distribution system is a process for distributing electricity from a 150 kV electric power transmission system to consumers, both 20 kV consumers and 380/220 V consumers. The problem that often occurs in the electric power distribution system at PT.X is load imbalance due to the different consumption power on each phase, so a neutral current appears. The current flowing in the neutral phase will cause power losses. Based on these problems, a load balancing device was made for a three-phase network with the standard SPLN No. 17 of 2014, namely the magnitude of the value of the current imbalance between the phases may not exceed 25%. This tool is also equipped with an overcurrent protection system and a tapping phase limitation system to support the performance of the load-balancing device on a three-phase network. The method used is the Naive Bayes method. The naïve Bayes method calculates the current parameters in the R, S, T, and N phases. The classification results will be used as a reference for activating the tapping phase system and the protection system. This system uses Internet of Things technology to monitor neutral current, current and voltage values in phases R, S and T, and power loss values. Based on the test results, when there is an imbalance of 30.20%, a neutral current of 1.20A appears, causing a power loss of 0.17W. After the tapping phase is carried out, the percentage of unbalance is reduced to 12.20%, the neutral current is 0.45A, and the power losses are 0.02W.

Quantitative Metrics to Properly Describe Solute Elution in Size-Exclusion Chromatography

Many different terms and definitions are used to explain the elution and the rate of retention/exclusion/retardation of an analyte in a chromatographic phase system. Size-exclusion chromatography is probably the most challenging chromatographic mode in terms of nomenclature, terms and metrics, with different terms sometimes being used incorrectly. The purpose of this short tutorial article is to review the terms and official nomenclatures for size-exclusion separations and to provide some guidance and recommendations for practicing chromatographers. The interconversion between the different metrics is explained and some examples are presented.

A behavioral model for the linear variable gain amplifier

AbstractIn this paper, a behavioral model for the variable gain amplifiers working in the liner region is proposed. An iterative least‐square algorithm for complex curve fitting is proposed to model the variable gain amplifiers as an infinite impulse response filter. The polynomial fittings are used to obtain the coefficient matrix for the gain response and phase response to the frequency at different control voltages. The relationship between gain and control voltage is fitted by a hyperbolic tangent function. The modeling flow is given in this paper. Comparing the frequency response of the behavioral model and circuit model, the simulation results are similar at the operating frequency. Finally, an application is given, which is used to compare the effect of the nonlinear phase system with two different band signals modulated by 4QAM. This application proves that the model can be used in the simulation of large‐scale systems.

PERENCANAAN INSTALASI LISTRIK GEDUNG WAREHOUSE PT. XYZ SEMARANG JAWA TENGAH

Warehouse Building PT. XYZ at Semarang Central Java is a building place for keeping logistics owned by the company with a large area. There is also buildings' support in it so that required system installation suitable electricity with applicable standards such as PUIL 2011 and other standards in the field of electricity. The main electricity supply uses a source from PLN, and the generator is set as a backup source when electricity from PLN is dead. Plan installation at PT. XYZ Warehouse building, namely the installation of lighting, socket installation, air conditioning installation, electronics installation, installation of rolling door, installation of local government fire pump, and installation of clean water transfer pump. There are LVMDP panels, SDP panels, and subpanels as supply power for the installation that will be installed. Breaker rating selection power and dimensions cable delivery person who will use will affect on reliability network installation. Calculation of CRC will influence election breaker power, cable diameter selection delivery, and drop the voltage to happen on the network installation. The calculation was conducted manually. With more formerly collected load data equipment electricity at PT. XYZ Semarang and classification distribution system split panel installation, SDP panel, and LVMDP panel. The total load installed on the PT. XYZ Semarang Warehouse building is known as 318,406 VA or 318 kVA so the needed splicing power from PLN using customer of 329 kVA with use transformer with 400 kVA capacity and required generator set capacity of 400 kVA. The load on the LVMDP panel is 254,725 watts with KHA 569 A, so using MCCB with a rating of 630 A, using cable 7 x NYY 1c x 185 mm 2 with drop voltage 7.47 Volts or by 1.96% on the network 3 phase system. By PUIL 2011 standard decline voltage maximum of 4% so that the drop in the voltage on the LVMDP panel is still by the required standard.

Kinetics and Thermodynamics of the Phase Transformation in the Nanocrystalline Substance—Gas Phase System

This study presents a model of the reaction of a nanocrystalline substance within the gas phase, where diffusion of gas reactants in the volume of the nanocrystallites is a rate-limiting step. According to the model calculations carried out, the rate of diffusion across the phase boundary located on the nanocrystallite surface limits the rate of the process. It was stated that in chemical processes with a phase transformation, the critical concentration of absorbate depends on two factors: the specific active surface area of the adsorbent and the difference in chemical potentials between the gas phase and the equilibrium potential at which the phase transformation occurs. When the actual adsorbate potential in the gas phase is much greater than the equilibrium potential of the nanocrystallite with the largest specific active surface, nanocrystallites undergo phase changes in the order according to their specific active surfaces from the largest to the smallest. In a process where the actual adsorbate potential is close to an equilibrium one, nanocrystallites undergo phase transformation in the order of their specific active surface from the smallest to the largest.

Constraining stellar and orbital co-evolution through ensemble seismology of solar-like oscillators in binary systems

Context. Binary systems constitute a valuable astrophysics tool for testing our understanding of stellar structure and evolution. Systems containing at least one oscillating component are interesting in this regard because asteroseismology offers independent parameters for the oscillating component that aid in the analysis. Systems of particular interest include those with known inclinations. With ∼0.8 million binary candidates, the two-body orbit catalog (TBO) of Gaia Data Release 3 (DR3) substantially increases the number of known binaries and the quality of the astrometric data available for them. Aims. To enlarge the sample of these astrophysically valuable benchmark objects, we searched for new binary system candidates identified in the Gaia DR3 TBO, for which one component has a detection of solar-like oscillations reported in the literature. Methods. We cross-matched the TBO, the full non-single star (NSS) and eclipsing binary catalogs from Gaia DR3 with catalogs of confirmed solar-like oscillators in the main-sequence and red-giant phase from the NASA Kepler mission and stars in the Southern Continuous Viewing Zone of NASA TESS. The wealth of seismic information is used to characterize the oscillating primary. To test the completeness and robustness of the values reported in the TBO catalog, we performed a similar analysis on stars of the Ninth Catalog of Spectroscopic Binary Orbits (SB9). Results. The analysis of the SB9 reveals an overall completeness factor for the Gaia TBO catalog of up to ∼30% providing reliable orbital parameters for ≥90% of the systems below Porb, SB9 ≲ 250 d. We obtained new 954 unique binary system candidates from Gaia DR3, which host solar-like oscillators, of which we found 45 stars in binary candidates to be on the main sequence and 909 in the red giant phase. Additionally, we report 918 oscillators in potentially long-periodic systems. We present the seismic properties of the full sample and test whether the reported orbital periods are physically possible. For 146 giants, the evolutionary state has been determined from their mixed-mode period spacing, showing a clear trend to long periodic and less eccentric systems in the advanced phases of stellar evolution. Two new eclipsing binary systems, hosting a red-giant primary were found. For another 146 systems hosting oscillating stars, the values for the orbital inclination were found in the TBO. Of 181 TBO candidate systems observed multiple times with APOGEE, 149 (82%) are confirmed as binaries from radial-velocity (RV) measurement. Conclusions. We conclude that the grand majority of the orbital elements reported in the TBO catalog are physically reasonable and realistic. This finding increases the number included in the sample of known solar-like oscillators in binary systems by an order of magnitude. The large fraction of confirmed binaries from APOGEE RV measurements indicates that the TBO catalog is robust. We suggest that due to instrumental noise, the seismically inferred masses and radii of stars observed with the TESS satellite and with an excess of oscillation power of νmax ≲ 30 μHz could be significantly overestimated. The differences in the distributions of the orbital period and eccentricity are due to the accumulative effect of the equilibrium tide acting in these evolved binary systems.

Ultrasonic mediated dual-site phase transfer catalyzed polymerization of N-butenyl isatin in two phase system- a kinetic study

Use of ultrasound as an additional source for promoting polymerization reactions has gained great attention. Phase transfer catalyst (PTC) along with ultrasonication in polymerization process is an attractive methodology to achieve good yield and realizing principles of green chemistry. Herein, we reported the facile polymerization of synthesized novel N-butenyl isatin (NBI) at 60 ± 2 °C with and without ultrasonic irradiation (45 kHz; 550 W) using dual-site phase transfer catalyst (1, 4-bis (triethyl methyl ammonium) benzene dibromide, TEMABDB) and potassium peroxydisulphate (PDS or PPS) as initiator. Ultrasonication (US) promotes the formation of reactive radicals, which can be utilized effectively in phase transfer polymerization process. Hence, the rate was multi-folded (twice) in comparison with silent condition. The effect of sonication frequency and various reaction parameters on the polymerization process were investigated in both conditions. An enhancement of reaction rate under sonication was validated by activation parameter. Synthesized monomer and poly (N-butenyl isatin) was characterized by different spectral methods.

Air quality forecasting‐driven cloud resource allocation for sustainable energy consumption: An ensemble classifier approach

AbstractIn recent times, air quality prediction is turned out to be one of the important research topics among research communities to prevent lives from negative health impacts. Random fluctuations of PM2.5 level brought about by frequent variations in meteorological factors create difficulties air pollution management. Forecasting the quality of air using time series data serves as a defense mechanism against threatening hazards by providing immense support to take preventive measures. Besides, handling dynamic real time workloads, forecasted by the prediction model requires appropriate computing resources to distribute workloads based on demands. To achieve this goal, this paper proposes a new Air Quality Prediction‐enabled Resource Allocation scheme for cloud‐based software services, which offers dynamic adjustment of resources based on workload demands with high energy efficiency. The proposed system is a two phase system that executes both air quality prediction and resource allocation processes consecutively. A new weighted average ensemble classifier is designed by combining support vector machine (SVM), artificial neural network (ANN), and gradient boosting machine (GBM) techniques to measure PM2.5 level on time series information of Beijing PM2.5 dataset. The system then dynamically allocates appropriate computing resources using crossover particle swarm optimization (CPSO) algorithm based on the forecasted results of PM2.5 level. This system has the potential to contribute significantly to reducing energy consumption and improving air quality in cities worldwide. The experimental results conducted to determine the efficiency of the proposed system in terms of different metrics proves that it achieves greater performance with less error functions for PM2.5 level prediction as well as minimizes energy consumption for resource allocation when compared with existing methods.

Photothermal Conversion of the Oleophilic PVDF/Ti3C2Tx Porous Foam Enables Non-Aqueous Liquid System Applicable Actuator.

Various physical and chemical reaction processes occur in non-aqueous liquid systems, particularly in oil phase systems. Therefore, achieving efficient, accurate, controllable, and cost-effective movement and transfer of substances in the oil phase is crucial. Liquid-phase photothermal actuators (LPAs) are commonly used for material transport in liquid-phase systems due to their remote operability and precise control. However, existing LPAs typically rely on materials like hydrogels and flexible polymers, commonly unsuitable for non-aqueous liquids. Herein, a 3D porous poly(vinylidene fluoride)(PVDF)/Ti3C2Tx actuator is developed using a solvent displacement method. It demonstrates directional movement and controlled material transport in non-aqueous liquid systems. When subject to infrared light irradiation (2.0Wcm-2), the actuator achieves motion velocities of 7.3 and 6mms-1 vertically and horizontally, respectively. The actuator's controllable motion capability is primarily attributed to the foam's oil-wettable properties, 3D porous oil transport network, and the excellent photothermal conversion performance of Ti3C2Tx, facilitating thermal diffusion and the Marangoni effect. Apart from multidimensional directions, the actuator enables material delivery and obstacle avoidance by transporting and releasing target objects to a predetermined position. Hence, the developed controllable actuator offers a viable solution for effective motion control and material handling in non-aqueous liquid environments.

Vibration control of an eleven-story structure with MR and TMD dampers using MAC predictive control, considering nonlinear behavior and time delay in the control system

In the last two decades, model predictive control has made significant progress in research and industrial process control. This achievement is through the high ability of model predictive control to solve industrial process control problems in the time domain. It is applicable in many control systems, such as delayed systems, univariate and multivariable systems, non-minimum phase systems, and unstable systems. This strategy is essentially for controlling delayed systems. It is possible to create a time delay in transmitting structure movement data in the systems that use sensors and receivers of sensor-recorded data, which is a factor to reduce the efficiency of the control system and even the instability of the structure. In this study, to investigate and compensate the effect of time delay in the hybrid vibration control system, an 11-story structure with a tuned mass damper and an MR damper was used by model algorithmic control (MAC) and nonlinear behavior of the structure in the control process. The linear and nonlinear structural models are created in OpenSEES, the control system in MATLAB; and the TCP/IP connection method was used to connect two programs. The fuzzy decision system is based on accelerating and decelerating movement. The structure has been subjected to seven earthquakes with maximum accelerations of 0.1 g to 1.0 g with an incremental step of 0.1 g. According to the results of incremental dynamic analysis, the average percentage of the fuzzy control system performance reduction, considering the time delay, is 15.28% and 38.57% for the maximum displacement and base shear in the linear structure, and 8.04% and 5.97% for the nonlinear structure, respectively. The assumed time delays have been effectively overcome using the model algorithmic control system (MAC), determining the prediction horizon of the structural behavior, and optimizing the control force in the control horizon. The performance of the MAC control system has been better than the fuzzy control system and the passive control with TMD. The average improvement percentage of the results of the maximum linear and nonlinear structural displacement response is respectively equal to 10.2 and 11.8 with the MAC control system, compared to the fuzzy control system without time delay. For the maximum base shear, it is equal to 8.32 and 2.49, respectively.

A Simple Method for Detection of Voltage Sags and their Mitigation using a Dynamic Voltage Restorer

Power quality is the major focus of progressive nations.In the era of smart grid,power quality receives a lot of thrust at all voltage levels namely,medium ,high and low.The objective of this paper is to present a simple and cost effective method of sag detection and mitigation in three phase systems at the consumer's end. The use of the concept of space vector representation of three phase quantities, effectively in the detection ,quantification and mitigation of short duration voltage disturbances such as sags in three phase supply systems under both balanced and unbalanced conditions of operation is presented.Three phase balanced quantities can be represented by a synchronously rotating space vector of constant magnitude .The two phase equivalent of which on a stationary reference frame are orthogonal to each other.When balanced sags occur,the magnitude of the rotating space vector obtained as a resultant of its orthogonal components is sensed for magnitude deviations from its constant nominal value.A trigger signal of varying amplitude is generated in proportional response to the detection of the deviation in its magnitude . In case of sags occurring on one or two phases of the supply, (unblanced),the positive sequence components of the unbalanced three phase quanities are determined using mathematical transformations and the magnitude of the resultant is found out. This resultant is sensed and its deviations from nominal value are measured and used to generate the trigger after processing.The trigger thus generated, initiates the control system of a Dynamic Voltage Restorer(DVR).When a sag is detected,the trigger signal generated, switches on the control circuit of the inverter which uses the space vector pwm control using sampled phase amplitudes of the control signal to generate the modulating wave in proportion to the deviation of the sag voltage from the reference value.The fundamental component of the output voltage which in proportion to the deviation from the nominal value is injected in series with the three phase disturbed signal through a transformer of suitable gain .The results show the successful operation of the DVR in maintaining nominal value of the voltage across the load through out the duration of the disturbance for all cases of balanced and unbalanced operation. The paper presents the detection algorithm as well as the control algorithm for restoration of voltage which are simple and easy to implement .

Trajectory control of Mars probe based on fuzzy variable parameter theory

The longitudinal dynamics model of the Mars probe's entry phase is a time-varying and nonlinear model. The study of time-varying nonlinear systems is complex. When the system is processed with a T–S fuzzy system, there is a limitation that the number of fuzzy rules increases dramatically. In this paper, the dynamic model of the Mars probe in the entry phase is treated with a fuzzy variable parameter system to overcome this shortcoming. By the process of local linearisation, a fuzzy variable parameter model of the Mars probe is established according to the time-varying characteristics of atmospheric density. Next, the full-state feedback and dynamic output feedback gain-scheduling controllers are designed based on the quadratic Lyapunov stability theory. Finally, Simulink simulation verifies that the fuzzy variable parameter system of the Mars probe's entry phase can be asymptotically stabilised by the designed controllers.

Graphene-based electrochemical system for tritium enrichment

In this study, a tritium enrichment system in the water phase has been developed based on the combination of a proton exchange membrane (PEM) electrolysis cell and a fuel cell. As the PEM, NafionTM and laboratory-synthesized sulfonated poly(ether ether ketone) membranes modified with an additional graphene layer in order to enhance the tritium separation factor were used. Both differences in the kinetics of the hydrogen evolution reaction and transport through the graphene layer of different isotopes are the driving factors expected to affect the separation of hydrogen isotopes. The separation factor was measured both during the electrolysis and fuel cell stage using different membranes. The facilitating effect of the graphene on the separation efficiency was determined during the study. The separation factor obtained by the proposed method was evidently higher than that obtained by other conventional methods.

Nonadiabatic Field on Quantum Phase Space: A Century after Ehrenfest.

Nonadiabatic transition dynamics lies at the core of many electron/hole transfer, photoactivated, and vacuum field-coupled processes. About a century after Ehrenfest proposed "Phasenraum" and the Ehrenfest theorem, we report a conceptually novel trajectory-based nonadiabatic dynamics approach, nonadiabatic field (NAF), based on a generalized exact coordinate-momentum phase space formulation of quantum mechanics. It does not employ the conventional Born-Oppenheimer or Ehrenfest trajectory in the nonadiabatic coupling region. Instead, in NAF the equations of motion of the independent trajectory involve a nonadiabatic nuclear force term in addition to an adiabatic nuclear force term of a single electronic state. A few benchmark tests for gas phase and condensed phase systems indicate that NAF offers a practical tool to capture the correct correlation of electronic and nuclear dynamics for processes where the states remain coupled all the time as well as for the asymptotic region where the coupling of electronic states vanishes.

Analysis of Anticancer Taxanes in Turkish Hazelnut (Corylus avellana L.) Genotypes Using High-Performance Liquid Chromatography.

This study aimed to investigate the anticancer taxane profiles of edible and non-edible parts of seven Turkish hazelnut (Corylus avellana L.) genotypes. Hazelnut is one of the healthy foods rich in nutrients and antioxidants. Its regular consumption is associated with a reduced risk of coronary heart disease and cancer. Hazelnut has been described as a plant source that produces taxanes which are widely used in many cancers. Türkiye is a homeland of hazelnut culture and has its own cultivars. Investigation of anticancer taxane profiles in different parts of Turkish hazelnut genotypes is important to show the potential and value of this plant from the perspective of the pharmaceutical and food industries. In this study, green leafy covers (GLCs) and hard shells (HSs) (non-edible parts), skinless kernels (SKs), brown-skins (BSs), and brown-skinned kernels (BSKs) (edible parts) of Çakıldak, Sivri, Tombul, Palaz, and Kalınkara as standard and Ham and Sivri Yağlı as local genotypes were used. The five parts of each genotype were ground to powder and eliminated to a size of less than 80 mesh. Each part was extracted using hexane and methanol for 10-deacetylbaccatin III (10-DAB III), baccatin III (BAC III), cephalomannine, and paclitaxel analyses in three replicates. Samples and standards were analyzed by acetonitrile: water gradient method on NOVA Spher 100 Phenyl-Hexyl C18 column inhigh-performance liquid chromatography reverse phase system with 228 nm ultraviolet detector and 1.0 mL/min flow rate. Microsoft Office Excel, 2016, and analysis of variance Jamovi Version 2.3 were used for statistical and data analysis, consecutively. Hazelnut parts differed to a very high degree from each other in terms of the highest amount of 10- DAB III (Ham HSs, 9,15 μg/g), BAC III (Kalınkara BSs, 7.24 μg/g), cephalomannine (Sivri Yağlı BSs, 6.37 μg/g), and paclitaxel (Ham BSKs, 4.36 μg/g) they contained. While HSs, BSKs, and BSs were rich in taxanes in all of the analyzed genotypes, SKs, and GLCs remain limited for anticancer taxanes. This is the first report that revealed the differences in taxane contents of Turkish hazelnuts including previously untested standard and local genotypes and their parts. Significant differences between genotype and hazelnut parts are expected to highlight the health benefits of consuming raw Turkish hazelnut with BSs and their possible use as a functional food. These results add more information to elucidate the bioactive potential of Turkish hazelnuts and their by-products and provide a promising resource for the food and pharmaceutical industry with an anticancer perspective.

Efficient and recycled magnetic self-stirring hollow fiber-solid/liquid phase system: An extraction and removal technique for personal care pollutants

The removal of personal care products (PCPs) in aqueous environments is a huge challenge. Traditional powder and magnetic materials are not conducive to complete solid–liquid separation, which hinders their practical application. In this study, the convenient recyclable magnetic self-stirring system combining with n-octanol hollow fiber-liquid phase micro-extraction (HF-LPME), wormhole-like mesoporous carbon (WMC) solid phase and magnetic stirring was constructed to improve the extraction and removal efficiency of the trace PCPs (triclosan, triclocarban, 2, 2′-Dihydroxy-4-methoxybenzophenone, and 2, 4-dihydroxydiphenylketone) in wastewater. The adsorption process of triclosan and 2,2′-dihydroxy-4-methoxybenzophenone on the WMC surface followed the pseudo-first-order kinetics as well as Freundlich isotherm model. Because WMC had oxygen-containing groups and the multiple mesoporous distribution forming the n-octanol microextraction unit and the shearing strength generated by the stir bar in the water sample accelerated the mass transfer efficiency of PCPs, this system had the advantage of simultaneous removal and extraction of four PCPs from wastewater samples. The extraction mechanism involved the hydrophobic force and size effect between the WMC and PCPs. In addition, the factors affecting extraction efficiencies (EEs) were discussed, such as the concentrate of WMC (1 mg/L), rotation rate (400 rpm), extraction time (15 min), and salt concentration (30%). The results indicated that the method possessed a wide linear range (0.05–200 μg L-1), and lower limits of detection (LODs) (S/N = 3, 0.005–0.05 μg L−1), at the optimal conditions. This method also showed excellent reusability and stability, with higher recovery (88–98%) and fewer relative standard deviations (2.4–6.3%). This work not only minimized secondary pollution from powder adsorbents, but provided an economic and green magnetic self-stirring system and absorbent for the extraction, removal, and determination of typical PCPs pollutants from actual wastewater samples.