Determination Of Matrine Research Articles

Separation and Determination of Matrine, Oxymatrine and Sophoridine in Composite Preparations by Non-aqueous Capillary Electrophoresis

A new, simple, and quick method for the simultaneous determination of three alkaloids (matrine, sophoridine, and oxymatrine) in composite preparations by nonaqueous capillary electrophoresis has been developed. A running buffer composed of 60% acetonitrile + 0.75% acetic acid + 25 mM ammonium acetate in methanol was found to be the most suitable for this separation. The limits of detection for three alkaloids were over the range of 0.45–0.6 μg/ml. In the tested concentration range, good linear relationships between peak areas and concentrations of the analytes were obtained. This method has been successfully applied to simultaneous determination of the three alkaloids with recoveries over the range of 95.6 to 97.2%. This new non-aqueous capillary electrophoresis method established has been successfully used for the simultaneous separation and determination of sophoridine, matrine and oxymatrine in complex preparations in 5 minutes.

Thermosensitive molecularly imprinted polymer coupled with HPLC for selective enrichment and determination of matrine in traditional Chinese medicine

In this study, a temperature-sensitive molecularly imprinted polymer was prepared by using the bifunctional monomer with the critical phase transition characteristics. Infrared spectrometry, scanning electron microscopy, and specific surface area testing were used to characterize the polymers. Then, the recognizing properties of the polymers were studied. Based on the prepared smart polymers, an SPE-HPLC analytical method for the determination of quinolizidine alkaloids in the extracts of Sophora flavescens was established and verified. Finally, the smart polymers were applied to the enrichment of quinolizidine alkaloids in plant extracts. By changing the temperature and solvents of the solid phase extraction conditions, the extraction process can increase the concentration of quinolizidine alkaloids by 4.3 to 5.2 folds. The extraction process has mild conditions and less time consumption, avoiding the use of a large number of toxic reagents, which indicate that the extraction process are more efficient and environmentally friendly.

Low-cost potentiometric sensor based on a molecularly imprinted polymer for the rapid determination of matrine in herbal medicines

A low-cost potentiometric sensor based on a molecularly imprinted polymer was developed for the determination of matrine in herbal medicine samples. The imprinted material was synthesized by the use of matrine as template, methacrylic acid (MAA) as the monomer, ethylene glycol dimethyl acrylate (EGDMA) as the cross linker, 2,2′-azo-bisisobutyronitrile (AIBN) as the initiator, and toluene and dodecanol as the porogenic agent. The electrode sensing membrane was fabricated by incorporating the ground imprinted particles into the polyvinyl chloride substrate that was subsequently incorporated into a laboratory constructed ion-selective electrode. The prepared imprinted sensor exhibited a rapid Nernst response across the concentration range from 1 × 10−5 to 1 × 10−1 M with a detection limit equal to 9.3 × 10−6 M. The analytical capabilities support the direct determination of matrine in herbal medicine. The analytical results were verified by a standard ultraviolet absorption spectrophotometry protocol. The proposed sensor manifested a series of advantages, including high selectivity and sensitivity, enhanced stability and low cost, that provides a wide number of potential applications for herbal analysis.

Simultaneous Determination of Co-formulated Matrine and Secnidazole in Suppositories by Reverse Phase High Performance Liquid Chromatography

Purpose: To develop and validate a new, simple, sensitive and accurate high performance liquid chromatographic (HPLC) method for the simulataneous determination of matrine and secnidazole in suppositories.Methods: The method involved using a SinoChoom ODS-BP C18 column (5 ƒÊm, 4.6 mm ~ 200 mm) and mobile phase consisting of acetonitrile.triethylamine (0.05 %) in 0.025 mol/L KH2PO4 (20:80, v/v).The flow rate was 1 mL/min and detection was monitored at 210 and 311 nm for matrine and secnidazole, respectively. Total run time was 10 min and the column was maintained at 35 oC.Results: The excipients in the suppository did not interfere with the drug peaks. Matrine was eluted at a retention time (RT) of 4.30 min while linearity for the quantification of drug was obtained in the concentration range of 10.0 - 100.0 ƒÊg/mL (r2 = 0.9991). Secnidazole was eluted at a retention time (tr) of 6.69 min and linearity for the quantification of the drug was obtained in the concentration range of 10.0 - 150.0 ƒÊg/mL (r2 = 0.9993). Intra- and inter-day variations were < 1.0 % for both matrine andsecnidazole.Conclusion: The developed HPLC method was validated according to International Conference on Harmonisation (ICH) guidelines and proved to be suitable for the simultaneous determination of matrine and secnidazole in suppositories.Keywords: Matrine, Secnidazole, Suppository, HPLC, Assay

Electrochemical Behavior and Determination of Matrine by the Reduced Graphene Oxide-Nafion Modified Glassy Carbon Electrode

Electrochemical Behavior and Determination of Matrine by the Reduced Graphene Oxide-Nafion Modified Glassy Carbon Electrode

Determination of Matrine in Rat Plasma after Oral Administration of Novel Korean Herbal Medicine KIOM-MA128 and Application of PK.

KIOM-MA128 is a novel Korean herbal medicine with antiatopic, anti-inflammatory, and antiasthmatic effects. Matrine is thought to be a potential chemical marker of KIOM-MA128, but pharmacokinetic studies on KIOM-MA128 had not been performed. This study describes a simple and rapid method using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) to determine the concentration of matrine in rats plasma after administration of KIOM-MA128. The isocratic mobile phase consisted of methanol and distilled water, and the flow rate was 0.15 mL/min. The accuracy and precision of the assay, as well as stability tests, were performed in accordance with FDA regulations for the validation of bioanalytical methods. The half-life and T max of matrine after administration of KIOM-MA128 were 4.29 ± 2.20 h and 1.8 ± 1.23 h, respectively. C max and AUCinf of matrine after administration of KIOM-MA128 at 4 g/kg and 8 g/kg were 595.10 ± 182.91 ng/mL, 5336.77 ± 1503.84 ng/mL·h and 850.46 ± 120 ng/mL, 9583.10 ± 888.92 ng/mL·h, respectively. The validated method was successfully applied to a pharmacokinetic study in rats after oral administration of KIOM-MA128.

Quantitative Analysis of Matrine and Oxymatrine in Sophora flavescens Extract and Its Biopesticides by UPLC

Successive cartridge clean-up method for the simultaneous determination of matrine and oxyma- trine in biopesticides containing Sophora flavescens extract was developed and validated by UPLC. The clean-up method was established with ENVI-Carb (0.5 g) and C18 SPE (0.5 g) cartridges for the bioactive alkaloid in biopesticides from S. flavescens, and the eluate was analyzed to quantify the matrine and oxymatrine by UPLC. The developed method was validated, and the recovery and LOQ of both materials were 105.0% and 103.6%, and 0.050 and 0.684 mg·kg-1, respectively. Of the twenty one samples, the total content of matrines were analyzed by using the developed method and the result showed the developed successive clean-up method could contribute to the manufacture and control of biopesticides including matrines, and can be ap- plied to the method development for the analysis of alkaloid materials in biopesticides.

Determination of matrine in medicine and bio-fluids based on inhibition of luminol-myoglobin chemiluminescence

A green, rapid and sensitive flow injection procedure based on the inhibition of the chemiluminescence (CL) intensity from the luminol-myoglobin (Mb) system is proposed for the determination of matrine. The decrement of CL signal was linear with the logarithm of the matrine concentration over the range from 10 to 1000 ng/mL (R2 = 0.9978) offering a detection limit of 3.5 ng/mL. At a flow rate of 2.0 mL/min, one analysis cycle, including sampling and washing, could be accomplished in 0.5 min with a relative standard deviation (RSD) of less than 5.0%. The sensitive flow injection method was successfully applied to the determination of matrine in pharmaceutical injection and human serum, with recoveries from 94.1 to 113.4% and RSDs of less than 5.0%.

Application of solid-phase extraction column for determination of matrine and oxymatrine in Sophora flavescens

A Cleanert Alumina-N-SPE column (0.5 g/6 mL) chromatograpy with 5 mL of chloroform-methanol (7: 3) as eluent, instead of aluminum oxide column (100-200 mesh, 5 g, 1 cm) chromatograpy eluted successively with chloroform and the chloroform-methanol (7:3) (20 mL each), was applied to enrich matrine and oxymatrine in Sophora flavescens. Also, the optimization of the HPLC determination conditions with acetonitrile-ethanol absolute-3% phosphoric acid solution (84: 6: 10) as mobile phase, instead of acetonitrile-ethanol absolute -3% Phosphoric acid solution (80: 10: 10) recorded in Chinese Pharmacopoeia 2010 Edition, was more suitable for determination of matrine and oxymatrine in S. flavescens. This method has advantage of reducing sample handling time and solvent volume and increasing the accuracy and feasibility, which can simplify the procedure for determination of matrine and oxymatrine in S. flavescens.

Physicochemical properties and skin penetration in vitro of total alkaloids of Sophora flavescens nanoemulsion

The research aimed at investigating the physicochemical properties, stability and skin penetration in vitro of total alkaloids of Sophora flavescens nanoemulsion. Prepare total alkaloids of S. flavescens nanoemulsion and detect the determination of matrine and oxymatrine in the nanoemulsion using HPLC method. Transmission electron microscopy and laser particle size analyzer were utilized to detect the shape and size of the nanoemulsion respectively. And also the stability of nanoemulsion was studied under the conditions of low temperature (4 degrees C), normal temperature (25 degrees C) and high temperature (60 degrees C). Franz diffusion cell was used to research the transdermal absorption of nanoemulsion in vitro. The results found that the nanoemulsion we prepared presented appearance of rounded, uniform; its average diameter was (15.55 +/- 2.24) nm, and particle size distribution value was 0. 161; the appearance, diameter and percentage determination of total alkaloids of S. flavescens had no variations after 15 d under 4, 25, 60 degrees C respectively. The steady-state permeation rate was 4.564 1 microg x cm(-2) x h(-1), 24 h cumulative amount of penetration was 110.7 microg x cm(-2), which was 1.86 fold of 24 h cumulative amount of aqueous solution (59.41 microg x cm(-2)). All the results demonstrated total alkaloids of S. flavescens nanoemulsion had good permeability, and could provide a new preparation for its clinical application.

High performance liquid chromatography in determination of matrine and sophoridine contents in <I>Ganlibao</I> capsule

High performance liquid chromatography in determination of matrine and sophoridine contents in <I>Ganlibao</I> capsule

Determination of Matrine and Oxymatrine in Sophora Flavescens by Nonaqueous Capillary Electrophoresis-Electrospray Ionization-Ion Trap-Mass Spectrometry

A simple, rapid, and sensitive nonaqueous capillary electrophoresis-electrospray ionization-ion trap-mass spectrometry (NACE-ESI-IT-MS) method was developed for determination of matrine and oxymatrine in Sophora Flavescens and medicinal preparations. The conditions for NACE separation and MS detection were systematically optimized. The optimum NACE buffer contained 30 mM ammonium acetate, 1% acetic acid, and 15% acetonitrile in methanol and the applied voltage on separation capillary was set at 25 kV. Berberine was selected as internal standard. In order to generate a stable electrospray, a sheath liquid (isopropanol/H2O, 2/1, v/v) was used, which could also boost the flow through the ESI needle. The matrine and oxymatrine solutions were introduced into MS detection by a syringe pump for collecting the MSn spectra to investigate the main fragment ions and its possible cleavage pathways. Both matrine and oxymatrine showed good linearity in the concentration ranges from 0.5 to 400 µg/mL, with linear correlation coefficient R > 0.99 and the limit of detections were 37.5 ng/mL for matrine and 50.0 ng/mL for oxymatrine, respectively. The recoveries at different content of Sophora Flavescens were 98.3%–102.9% for MT and 95.3%–100.6% for OMT, which indicates the reliability of this method.

Matrine Determination in Compound Sophora Alopecuroides Suppositories by High-Performance Liquid Chromatography

The determination of matrine in compound sophora alopecuroides suppositories was carried out by reversed-phase high-performance liquid chromatography(RP-HPLC). Elite ODS C18(250mm×4.5mm, 5µm) column was used and acetonitrile -anhydrous ethanol-water-triethy lamine (15:22.5:62.5:0.01) was selected as the mobile phase. Meanwhile the detection wavelength 215nm was used. The linearity of matrine was in the range of 0.74-5.18µg，r=0.9991，and the average recovery was 98.52%，RSD was 1.54%. The method was proved to be simple, accurate, sensitive and reliable. It can be used for the quality control of compound sophora alopecuroides suppositories.

Determination of matrine in Fufang Shen'an granules by HPLC

To determination the content of matrine in Fufang Shen'an particles by HPLC. HPLC with Dikma Diamonsil C18 (4.6 mm x 150 mm, 5 microm) column was used. Acetonitrile-0.1% H3 PO4 (22:78) as the mobile phase, flow rate was 1.0 mL x min(-1) and the UV detection wavelength was 220 nm. The linear range of matrine was 2.08-10.40 microg, the correlation coefficient (r) was 0.999 6. The average recovery rate was 100. 51%, RSD was 2.04% (n = 6). The method is suitable for the formulate of the quality standard with sufficient accuracy, stability and reappearance. It can be used for quality control in Fufang Shen'an particles.

Determination of matrine and oxymatrine contents in Ganlibao capsule by optimized high performance capillary zone electrophoresis

Determination of matrine and oxymatrine contents in Ganlibao capsule by optimized high performance capillary zone electrophoresis

Capillary Electrophoretic Method for Determination of Matrine in Caco‐2 Cell Medium

A capillary electrophoretic (CE) method has been developed for the analysis of matrine in a biological medium. The optimized run buffer solution contained 200 mM tris(hydroxymethyl)aminomethane, 40 mM sodium dihydrogen phosphate, and 20% 2‐propanol, adjusted to pH 5.8 using phosphoric acid. A voltage of 25 kV was applied across a capillary (50 µm × 40 cm, distance to detector: 10.2 cm) for CE separation. Each analysis was completed in less than 5 min. Linearity of matrine calibration in the concentration range of 3.2–185 µg/mL (at the detection wavelength of 214 nm) was excellent (R 2 = 0.9994). The run‐to‐run repeatability (n = 3), as expressed by the relative standard deviation (RSD), was found to be better than 4.0%. The limit of detection was estimated to be 3.2 µg/mL. This CE method was employed to determine matrine in Caco‐2 cell media after transport of matrine through the cells.

Preparative separation and determination of matrine from the Chinese medicinal plant Sophora flavescens Ait by molecularly imprinted solid-phase extraction.

Molecularly imprinted microspheres (MIMs) were synthesized by micro-suspension polymerization using matrine (MT) as template. The MIMs were employed for solid-phase extraction (SPE) and as chromatographic stationary phase for the determination of MT from the Chinese medicinal plant Sophora flavescens. The effects of the various eluents, their concentrations and volumes on the retention behavior were investigated. The selectivity and capacity of the imprinted microspheres against MT was also discussed. The results showed that the MIMs exhibited stronger specific affinity to MT than to oxymatrine (OMT). Methanol-water (3:7, v/v) was used for washing impurities from the MIMs-SPE cartridge loaded with the herb extracts, while methanol-glacial acetic acid (9:1, v/v) was used for eluting MT. The maximum load of MT and the recovery of MIMs cartridge towards MT were 38.7 microg g(-1) and 71.4%, respectively. The method developed might be used to separate and extract effective constituents from Chinese medicinal plants on a large scale.

Determination of matrine and oxymatrine in Sophora subprostata by CE

Shan-dou-gen is the dried roots of Sophora subprostata (Leguminosae) and a commonly used Chinese herbal drug in Taiwan. It possesses antipyretic, anti-inflammatory, analgesic effects and is used to treat sore throat and acute pharyngolaryngeal infections. To evaluate the quality of S. subprostata, a simple, rapid and accurate high-performance capillary electrophoresis (HPCE) method was developed for the assay of two alkaloids: matrine and oxymatrine. The electrolyte was a buffer solution containing 75% 130 mM phosphate buffer (NaH 2PO 4/H 3PO 4, pH 3.5) and 25% acetonitrile. Applied voltage was 10 kV and temperature was 30 °C. 2-(4-Hydroxyphenyl)ethylammonium chloride was used as an internal standard and detector set at 200 nm. The contents of matrine and oxymatrine of S. subprostata in several different samples of crude drugs and commercial concentrated preparation have also been determined.