Tartrate Solution Research Articles

Leaching Kinetics of Metallic Silver Using Di-ammonium Tartrate and Hydrogen Peroxide Solution as a Greener Substitute for Cyanide

Leaching Kinetics of Metallic Silver Using Di-ammonium Tartrate and Hydrogen Peroxide Solution as a Greener Substitute for Cyanide

Expedient measurement of total protein in human serum and plasma via the biuret method using fiber optic probe for patient samples and certified reference materials.

The biuret method is currently recognized as a reference measurement procedure for serum/plasma total protein by the Joint Committee for Traceability in Laboratory Medicine (JCTLM). However, as the reaction involved in this method is highly time-dependent, to ensure identical measurement conditions for calibrator and samples for high accuracy, a fast and simple measurement procedure is critical to ensure the precision and trueness of this method. We measured serum/plasma total protein using a Cary 60 spectrophotometer coupled with a fiber optic probe, which was faster and simpler than the conventional cuvette method. The biuret method utilizing alkaline solutions of copper sulfate and potassium sodium tartrate was added to the sample and calibrator (NIST SRM 927e) incubated for 1h before measurement. A panel of samples consisting of pooled human serum, single donor serum, and certified reference materials (CRMs) from three sources were measured for method validation. Sixteen native patient samples were measured using the newly developed biuret method and compared against clinical analyzers. Additionally, the results of three cycles of a local External Quality Assessment (EQA) Programme submitted by participating clinical laboratories were compared against the biuret method. Our biuret method using fiber optic probe demonstrated good precision with within-day relative standard deviation (RSD) of 0.04 to 0.23% and between-day RSD of 0.58%. The deviations between the obtained values and the certified values for all three CRMs ranged from -0.38 to 1.60%, indicating good method trueness. The routine methods using clinical analyzers were also found to agree well with the developed biuret method using fiber optic probe for EQA samples and native patient samples. The biuret method using a fiber optic probe represented a convenient and reliable way of measuring serum total protein. It also demonstrated excellent precision and trueness using CRMs and patient samples, which made the method a simpler candidate reference method for serum protein measurement.

Modification of contact lenses via metal‐organic frameworks for glaucoma treatment

AbstractThe prevention of blindness from glaucoma requires multiple treatments to lower intraocular pressure. Here, human contact lenses are modified with highly porous metal‐organic frameworks with sustained release of brimonidine for prolonged glaucoma treatment. Various metal‐organic frameworks were screened for their attachment to lenses, loading with brimonidine, and drug‐release properties. Optimized therapeutic ocular lenses conjugated with MIL‐101(Cr) frameworks maintain optical transparency and power. Coating of lenses with MIL‐101(Cr) nanoparticles reduced brimonidine washout with tears and ensured a gradual and localized release of the drug into the eyeball through the cornea. The hybrid lenses provided a 4.5‐fold better decrease in eye pressure, compared by area under the curve (AUC) value to a commercially available brimonidine tartrate solution. Therapeutic lenses did not induce any notable eye irritation or corneal damage in vivo. The newly developed hybrid lenses are expected to provide a robust platform for the therapy and prevention of various ocular diseases.

Facile synthesis of Ce(III)-rich cerium oxyhydroxide and its unselective adsorption of Sb(III) and Sb(V) via oxygen vacancies

The introduction of oxygen vacancies (OVs) into metal oxide materials is an effective method for modifying the surface properties of environmentally functional materials. However, limited attention has been paid to their roles as pollutant adsorbent. In this study, Ce(III)-enriched cerium oxyhydroxide particles (CeO(OH)2-OVs@CS) were prepared using a drop-in phase separation method and then used as adsorbents to address the challenges of conventional metal oxides that display notably lower adsorption efficiencies for Sb(V) than Sb(III). Within 60 min, more than 96 % of both Sb(III) and Sb(V) with an initial concentration of 50 mg/L were removed, with only a 2 % difference between them. XRD, XPS, EPR, and FT-IR results demonstrated that chitosan served as a carrier for Ce nanoparticles and, due to its reductive characteristics, enhanced the air stability of Ce(III), thereby creating more OVs. Meanwhile, chitosan's abundant functional groups such as OH, NH2, and CO in its structure can also facilitate the binding of Sb species onto CeO(OH)2. Density functional theory (DFT) calculations also indicated that antimonate ions were more prone to binding with OVs compared with defect-free crystal surfaces. Additionally, CeO(OH)2-OVs@CS showed great removal performance for organic ligands in antimony(III) potassium tartrate solution, and about 97 % of tartaric acid was removed simultaneously.

Rhinoscope‐assisted management of nasal hirudiniasis in a dog

AbstractA mixed‐breed mesocephalic male dog, weighing 25 kg, was presented with a medical history of nasal leeches (Dinobdella ferox) affecting both nostrils with the symptoms of laboured breathing, reverse sneezing, intermittent epistaxis and a reduced appetite. The dog underwent a standard clinical examination, haematological and biochemical assessments and radiographic studies to systematically diagnose any anomalies and evaluate its suitability for general anaesthesia. A Karl Storz video‐otoscope featuring a 15 Fr instrument channel was used to conduct anterior rhinoscopy under general anaesthesia. The endoscope was introduced sequentially into each nostril to visualise the nasal cavities and pinpoint the presence of leeches therein. Grasping forceps, guided through the endoscope's integrated instrument channel, were used to extract the leeches from both nasal cavities within a brief timeframe (18 leeches in 16 min) and without encountering substantial challenges. Following the leech removal, a post‐retrieval minor capillary bleeding within the nasal cavities, which was seen from both the nostrils, was controlled by flushing the nostrils with a 1:10,000 adrenaline tartrate solution.

Recycling Cu(II) from complexing copper wastewater using ferrous sulfide stabilized by carboxymethyl cellulose: efficiency and mechanism insights

Investigating the Cu(II) recovery rate in complexing copper wastewater holds significant importance in achieving resource recycling and enhancing the sustainability of industrial processes. In this study, the ferrous sulfide stabilized by carboxymethyl cellulose (CMC-FeS) was synthesized as a promising strategy to treat complexing copper wastewater, which addressed issues of the stability of FeS nanoparticles and recycling Cu(II) from complexing copper wastewater. Experimentally, the Cu(II) recovery rate was found to be 99.8 % from cupric tartrate (Cu-TA) solutions (Cu(II) = 640 mg/L), as well as the Cu(II) recovery rate reached up to 99.9 % from micro-etching copper-containing wastewater (Cu(II) = 6276.65 mg/L), when treated by CMC-FeS with the molar ratio of [FeS]/[Cu] = 1.25. The underlying mechanism has been systematically elucidated through chemical equilibriums, FTIR/Raman spectral analysis, SEM-EDS analysis, and XPS analysis, providing a solid foundation for further development and application. CMC-FeS can effectively compete with Cu(II) ligands to recover Cu(II) from copper complex wastewater, which is an efficient countermeasure for the treatment of copper complex wastewater. This process involves a variety of mechanisms, such as sulfide precipitation, replacement or ion exchange, complex adsorption, and flocculating sedimentation, finally produces insoluble precipitates with CuS as the main component. This study provides a valuable reference for the treatment of heavy metal complex wastewater, especially the recycling and utilizing metal resources.

Extended Rate Constants Distribution (RCD) Model for Sorption in Heterogeneous Systems: 4. Kinetics of Metal Ions Sorption in the Presence of Complexing Agents-Application to Cu(II) Sorption on Polyethyleneimine Cryogel from Acetate and Tartrate Solutions.

Here, we report a new version of the extended Rate Constants Distribution (RCD) model for metal ion sorption, which includes complex-formation equilibria. With the RCD-complex model, one can predict sorbent performance in the presence of complexing agents using data on metal ion sorption from ligand-free solutions and a set of coefficients for sorption rate constants of different ionic species. The RCD-complex model was applied to breakthrough curves of Cu(II) sorption from acetate and tartrate solutions on polyethyleneimine (PEI) monolith cryogel at different flow rates and ionic speciation. We have shown that, despite the lower stability of Cu(II)-acetate complex, at high flow rates, acetate has a more pronounced negative effect on sorption kinetics than tartrate. The RCD model was successfully used to predict the shape of the breakthrough curves at an arbitrary acetate concentration but failed to predict Cu(II) sorption from tartrate solutions in a broad range of ligand concentrations. Since a twofold increase in sorption capacity was observed at low tartrate concentrations, the latter fact was related to an alteration in the sorption mechanism of Cu(II)-ions, which depended on Cu(II) ionic speciation. The obtained results emphasize the importance of information about sorption kinetics of different ionic forms for the optimization of sorption filter performance in the presence of complexing agents.

Strong room temperature exciton photoluminescence in electrochemically deposited Cu2O films

Strong room temperature exciton photoluminescence (PL) has been observed in copper (I) oxide films electrochemically deposited in a tartrate electrolyte. The PL intensity of these films is two orders of magnitude higher than that of films deposited from the classical lactate electrolyte. X-ray diffraction (XRD) and Raman spectroscopy analyses demonstrate that the films prepared using tartrate electrolyte are characterized by higher grain size, which reduces a non-radiative recombination of charge carriers. Better optical quality of the Cu2O films prepared using tartrate electrolyte is explained taking into account stronger tartrate-copper complexes, which results in lower density of grain boundaries in such films. Moreover, higher buffering capacity of the tartrate complex provides stability of pH value in the diffusion layer of the near-electrode space preventing defect formation. Our study demonstrates the promise of using Cu2O films deposited from tartrate solution for solar energy applications like photoelectric energy conversion, hydrogen production, and photocatalysis.

Layered structures based on antimony tartrate dimers

Abstract Four complex metal antimony tartrates have been synthesized in single crystal form by slowly evaporating aqueous solutions of potassium antimony tartrate (tartar emetic) and metal nitrates or chlorides. Crystal structures of these compounds all contain infinite layers formed by linking antimony tartrate dimers with M–O bonds, with M = Li, La, Ce or Nd. Dehydration of the La and Ce compounds at elevated temperatures led to new layered structures via single-crystal to single-crystal transformations.

Development of Electroconvection at the Undulate Surface of an Anion-Exchange Membrane in Sodium Chloride and Sodium Hydrogen Tartrate Solutions

Development of Electroconvection at the Undulate Surface of an Anion-Exchange Membrane in Sodium Chloride and Sodium Hydrogen Tartrate Solutions

Crystal structures with infinite chains based on antimony tartrate dimers

Abstract Seven complex metal antimony tartrates have been synthesized in single crystal form by slowly evaporating aqueous solutions of potassium antimony tartrate (tartar emetic) and divalent metal nitrates or perchlorates. Crystal structures of these compounds all contain infinite chains formed by linking antimony tartrate dimers with divalent metal ions. While infinite chains of antimony tartrate dimers bridged by single Zn2+ ions or by double Mg2+ ions were reported previously, new types of chains with alternating single and double bridging cations are observed in this work.

Acoustic, thermal and optical properties of organic based disodium tartrate salt

In this work, acoustic, thermal, and optical properties were tested on the different concentrations of the Disodium Tartrate solutions. First, the viscosity studies were analyzed for the Disodium tartrate in the concentration range from 2% to 20% with different temperatures 303K, 308K, 313K, and 318K. It was noted that the relative viscosity and the activation energy of the prepared compound increase with increases in concentration and decreases with temperature increases. The properties like density and ultrasonic velocity are varied when increases the concentration of the aqueous solutions of Disodium Tartrate. In this study, the values of adiabatic compressibility show an inverse behavior when compared with ultrasonic velocity due to the interaction between solute and solvent molecules. Also observed that the inter-molecular free length is maximum for a lower percentage. The free volume for the compound is maximum at 2% and a minimum of 20%, since it reduces when the internal pressure increases. It was revealed that the classical absorption coefficient and relaxation time for Disodium Tartrate is minimum for lower percentage and minimum for a higher percentage. The interactions between the solute and solvent are confirmed through the property like specific Acoustical impedance. It was noted that the increase in internal pressure increases the concentration of the compound. The ion-solvent interaction was discussed by the relative association study, thus the values of relative association increases with an increase in concentration. The Rao’s and Wada’s constant increases linearly in aqueous solutions of Disodium Tartrate for the entire system.

Rapid and Inexpensive Colorimetric Detection of Total Serum Protein Using Microzone Plates Wax-Printed on Polyester Films

This report describes a rapid and inexpensive colorimetric method based on biuret assay for total serum protein analysis using wax printed microzone plates and a desktop scanner. The colorimetric assay was performed in 96-microzone plates fabricated on polyester films through a wax printing protocol. The image scanning mode and the concentration of the biuret reagents were optimized to achieve the highest detectability levels. The best analytical response was obtained using the slide scanning mode as well as 4% CuSO4 and 150 mmol L-1 potassium sodium tartrate solutions. The proposed method offered linear relationship for the bovine serum albumin concentration range between 25 and 200 µmol L-1 with a limit of detection of 9.7 µmol L-1. The colorimetric approach revealed satisfactory precision (relative standard deviation values between 0.6 and 4.4%). The bioanalytical feasibility was demonstrated through the total protein analysis in serum samples collected from dogs previously diagnosed with kidney disease. The total serum protein concentrations varied from 960 ± 19 to 1661 ± 38 µmol L-1 and the achieved values revealed good accordance with those obtained through a reference method. Based on the reported results, wax printed microzone plates have demonstrated simplicity and potential to be adopted as alternative platforms for bioassays.

Evaluation of the thermal antinociceptive effects of subcutaneous administration of butorphanol tartrate or butorphanol tartrate in a sustained-release poloxamer 407 gel formulation to orange-winged Amazon parrots (Amazona amazonica).

To determine the thermal antinociceptive effects of butorphanol tartrate and butorphanol tartrate in a sustained-release 25% poloxamer 407 (P407) gel formulation (But-P407) in parrots. 13 orange-winged Amazon parrots (Amazona amazonica). First, butorphanol tartrate (5 mg/kg) or saline (0.9% NaCl) solution was administered IM to birds in a randomized complete crossover design. The temperature prompting a foot withdrawal response to a thermal stimulus (ie, the thermal threshold) was determined 30 minutes before (baseline) and at various points after treatment administration. Second, But-P407 (12.5 mg/kg) or P407 was administered SC in a similar crossover design. Thermal threshold was determined before and at various points after treatment administration. Third, But-P407 (12.5 mg/kg) or saline solution was administered SC and evaluated as in the second trial. Sedation was scored immediately before each time point in all 3 trials. In the first trial, a significant increase in thermal threshold was noted 30 minutes after butorphanol tartrate (vs saline solution) administration. No sedation was noted. In the second and third trials, no significant difference was identified between results for But-P407 and those for either control treatment (saline solution or P407). Mild sedation was noted in the second trial following But-P407 administration. Results suggested a small but significant thermal antinociceptive effect of butorphanol tartrate lasting between 30 minutes and 1.5 hours in orange-winged Amazon parrots. No antinociceptive effect of butorphanol tartrate was demonstrated when delivered in P407. Further research is needed to evaluate the potential analgesic effects of But-P407.

Operando Surface X-Ray Diffraction Studies of Structurally-Defined Oxygen Evolution Electrocatalysts Based on Electrodeposited Epitaxial Transition Metal Oxide Films

Iron-group oxides are among the best precious-metal-free catalyst for the oxygen evolution reaction (OER) in alkaline media [1] and thus of great interest for large-scale electrochemical water splitting into O2 and H2. A wide variety of different catalysts, based on oxides of Co, Fe, and Ni, have been synthesized and studied, exhibiting rather diverse nanoscale morphologies and usually an unknown surface structure. This makes it difficult to compare their reactivity and correlate it with ab initio theoretical studies, which hinders the development of clear structure-reactivity relationships and unambiguous determination of the OER reaction mechanism.In this work we report in situ and operando surface x-ray diffraction (SXRD) studies of well-defined Co3O4 and b-CoOOH electrocatalysts [2]. Ultrathin epitaxial films (10-20 nm thickness) of these materials were electrodeposited on Au single crystals from a dilute Co(II) tartrate solution of pH 14, using a modified version of the procedure described in Ref. [3]. Characterization by SXRD and AFM revealed that epitaxial Co3O4(111) and β-CoOOH(001) deposits were obtained in 2 M and 5 M NaOH, respectively. The film orientation is independent of the substrate and in the surface plane aligned with the Au(111) and Au(001) substrate lattice. The β-CoOOH(001) film deposits were found to be smooth with clearly visible atomic steps. The Co3O4 films exhibits a more island-like morphology, which can be controlled by the deposition parameters.The potential-dependent structure of these model oxide electrocatalysts during cyclic voltammograms was studied at pH values between 7 and 13 over a wide potential range up to OER current densities of 150 mA/cm2. For this, a custom designed electrochemical cell was used that allows high-resolution SXRD characterization together with electrochemical and optical reflectivity measurements while gas evolution proceeds. The two oxide materials show very different behavior. The CoOOH(001) samples were perfectly stable over a wide potential range. In the case of Co3O4(111), fast and fully reversible structural changes are observed, in good agreement with a previous operando study of polycrystalline Co3O4 catalysts [4]. Specifically, the near surface region of Co3O4(111) is converted to a new phase, which is assigned to highly disordered CoOOH. This restructuring starts at potentials 300 mV negative of the onset of the OER, indicating that the process is related to the thermodynamically predicted Co3O4 / β-CoOOH(001) transition rather than to the catalytic reaction. The formed skin layer is of defined thickness, which changes linearly with applied potential. In addition, continuous changes of the Co3O4 unit cell volume are found over a wide potential range, which are assigned to changes in the oxide bulk, related to the pseudo-capacitive charging current in the pre-OER potential range. The kinetics of these structural changes is fast and highly reversible. Furthermore, systematic studies of Co3O4(111) films with different morphology show a smaller skin layer thickness and lower magnitude of the bulk oxide changes for smoother deposits, suggesting an important role of more open oxide facets for the structural conversion.Surprisingly, the catalytic activity of the skin layer covered Co3O4(111) and that of the smooth β-CoOOH(001) are almost identical, if the true microscopic surface area is taken into account. This indicates that the number of OER active sites on the two oxides is similar, despite the very different defect density, and is at variance with previous suggestions that di-µ-oxo bridged Co cations are exclusively responsible for the OER activity of Co oxides. For the smooth β-CoOOH(001) a turnover frequency of 4.2 s-1 per surface atom is determined at an overpotential of 400 mV, which exceeds that estimated in most studies of polycrystalline Co oxide electrocatalysts.[1] C. C. L. McCrory et al., Journal of the American Chemical Society 2015, 137, 4347.[2] F. Reikowski, et al., ACS Catalysis, 2019, 9, 3811[3] J. A. Koza et al., Chem. Mat. 2012, 24, 3567.[4] A. Bergmann, et al., Nature Communications, 2015, 6, 8625. Figure 1

A Study on the Expression of Traditionality in the Architecture of Kenzo Tange- Focused on formal aspects -

The polarograms of Cd(II) in 0.15M tartrate solution were investigated in the range of pH values from 6.0 to 12.6 at 20and 25. Up to pH value of 7.8, the limiting current and the halfwave potential were found to be constant, and when compared with the nitrate solution of the same concentration at the same ionic strength, the limiting current decreased by 28% and the halfwave potential shifted by -0.05 volt. The values of limiting current sharply decreased as the pH value exceeded 8.2 and the minimum values appeared at the pH values of 11.2~11.4. The values of halfwave potential gradually decreased as the pH value increased over 8.2 and the value of -0.78 volt was obtained at the pH value of 12.6. Possible mechanisms of electrode reaction were suggested and the anomalous behavior of reduction waves of Cd(II) in tartrate solution up to pH value of 9.4 was discussed.

Preparation and characterisation of polypyrrole – carbon nanomaterial composite solid-phase microextraction fibres and their applications to the determination of fungicide residues in grape juice samples

ABSTRACT Present study describes the use of a lab-made polypyrrole (PPy) coated solid phase microextraction (SPME) fibres modified with carbonaceous nanomaterials for effective adsorption of volatile fungicides used in vineyards for subsequent determination by gas chromatography coupled with a mass spectrometer. The SPME fibres were fabricated electrochemically by dipping a stainless steel wire in a cell containing pyrrole monomer where the polymeric film was coated on the wire by cycling the potential between −0.5 and 2.0 V at a rate of 50 mV s−1. Then, the procedure was repeated in the presence of multi-walled carbon nanotubes (MWCNTs) or graphene (Gr) nanoplates dispersed in tartrate solution. The coated fibres were attached to a holder for subsequent headspace extraction of volatile fungicides in grape juice samples. Initial studies were conducted with commercial fibres adoptable to a fully automated system and optimal conditions were studied by using an 85 µm PA fibre. Then, the fabricated fibres have been tested manually under optimised conditions for unbiased comparison. Overall results have suggested that PPy-MWCNT-SPME and PPy-Gr-SPME have given the comparable results with commercial fibres in the concentration range of 1.0–50 ng mL−1 by allowing the determination of these fungicides at LOQ levels varied in the range of 0.55–6.94 ng mL−1 ranges. In comparison to the literature values, more results that are sensitive were obtained with these two fibres with satisfactory recovery values without any solvent consumption or labour-intensive pre-treatment processes.

Characterization of a Piezoelectric Inkjet Aerosol Generator for the Study of Bioaerosol Survivability

ABSTRACT In laboratory-based bioaerosol researches, the ability to reliably generate bioaerosols with minimal damage to the microorganisms is critical. In this work, a thermally consistent inkjet-based aerosol generation technique was adopted to generate bioaerosols, and its ability to preserve microbial survivability was assessed. The performance of the piezoelectric inkjet aerosol generator was evaluated using a potassium sodium tartrate solution and an aqueous suspension of 3-µm polystyrene latex spheres. An Aerodynamic Particle Sizer was employed to measure the aerosol number concentration and the size distribution. The main operating parameters of the inkjet print head for generating viable aerosols were the driving voltage, pulse duration, dispersion air flow, pulse frequency, and volume fraction of the solids in the nebulizing liquid. In the bioaerosol survivability experiments, yeast was used as the test microorganism. The nebulized yeast cells were sampled at different distances from the outlet of the inkjet aerosol generator and thus exposed to varying degrees of relative humidity for different residence times. Three bioaerosol samplers, namely, a BioSampler, a gelatin filter cassette, and a Marple cascade impactor with Mylar film, were used to collect the airborne yeast samples. Yeast survivability was determined by methylene blue viability staining. This study successfully demonstrated the feasibility and the advantages of using a piezoelectric inkjet print head to generate viable aerosols. Applying a square wave with appropriate combinations of voltage and pulse duration enabled the inkjet system to produce a liquid with rheological properties similar to those of water, and the particle generation rate was manipulated by adjusting the pulse frequency. Moreover, dispersion air was required to reduce coagulation. Although the number of droplets containing PSL spheres increased with the volume fraction of the spheres (Fv), a high Fv also reduced the probability of singlets forming.

Polypyrrole doped with dodecylbenzene sulfonate as a protective coating for copper

Polypyrrole doped with dodecylbenzene sulfonate (DBS) was formed at copper, PPy–DBS, and at a thin coating of polypyrrole doped with tartrate to form a bilayer of PPy–Tar/PPy–DBS at copper. The two polymer coatings showed good protective properties. Breakdown potentials of 0.85 V and 0.93 V vs SCE were recorded in 0.1 M NaCl for the PPy–DBS and PPy–Tar/PPy–DBS bilayer, respectively. The more protective properties of the bilayer were explained in terms of an adherent thin polymer that was formed in the tartrate solution without significant dissolution of copper before the polymer was nucleated. The protective properties were also evident from open-circuit potential measurements where the potential adopted by the polymer coated copper remained constant and higher than the potential of the uncoated copper for several days. Furthermore, a decrease in the corrosion current density was observed from 1.95 μA cm−2 for copper to 0.12 μA cm−2 for the bilayer. The concentration of DBS had an influence on the properties of the polymer films with more protective films formed in 0.05 M DBS. The critical micelle concentration of DBS in 0.3 M pyrrole was measured as 9.8 mM, indicating a relatively high level of micelles in 0.05 M DBS. The protective properties of the coating were attributed to the large and immobile DBS anion, which gives the polymer cation exchange properties, minimising the uptake of chloride anions. In addition, the incorporation of anionic micelles may occur to repel further the chloride anions.

Partial molar volumes and compressibilities of α-amino acids from aqueous to aqueous-disodium tartrate solutions at T = (303.15, 308.15 and 313.15) K

Present work reports the densities (ρ) and ultrasonic velocities (u) of four α-amino acids (viz. glycine, l-proline, l-arginine and l-asparagine) in aqueous disodium tartrate (Na2Tar) (0.50, 1.00 and 1.50 mol·kg−1) solutions at T = (303.15, 308.15 and 313.15) K. Apparent molar volumes (V2, ϕ) and apparent molar isentropic compressibilities (κS, 2, ϕ) of amino acids have been calculated from density and ultrasonic velocity data respectively. Standard molar volumes (V2, ϕo) and standard molar compressibilities (κS, 2, ϕ0) were determined from the graphical fittings using standard relations and corresponding standard transfer volumes (ΔtV2, ϕo) and standard transfer compressions (ΔtκS, 2, ϕ0) were calculated. Different thermodynamic parameters have been used to explore solute-solute, solute-solvent interactions and effect of disodium tartrate salt on the hydration and electrostriction behavior of amino acids. A significant effect of added salt on the volumetric and acoustic behavior of studied amino acids through ion-ion, ion hydrophilic-hydrophilic and hydrogen bonding interactions has been observed.