Extraction separation and electrophoretic determination of tyrosine and glycine

Reactive extraction of L‐valine with di(2‐ethylhexyl) phosphate acid

“…There were also a series of encouraging results on the reactive extraction of amino acids . Pakhomova studied the effect of the content of a salting‐out agent on the distribution coefficients of tyrosine and glycine in a system constituted by a mixture of hydrophilic solvents ( n ‐butanol‐ethyl acetate‐acetone) and an aqueous‐salt solution . Based on the experimental data, mathematical models were established to optimize the separation conditions of amino acids.…”

“…23 -26 Pakhomova studied the effect of the content of a salting-out agent on the distribution coefficients of tyrosine and glycine in a system constituted by a mixture of hydrophilic solvents (n-butanol-ethyl acetate-acetone) and an aqueous-salt solution. 27 Based on the experimental data, mathematical models were established to optimize the separation conditions of amino acids. The extraction efficiencies for five amino acids by poly ethoxylated alcohols were compared by Ghouasa, 28 who found that surfactant concentration, amino acid hydrophobicity, temperature and additional salt were key factors that affected the extraction rates.…”

Application of Water-Soluble Polymers for Extraction Separation of Amino Acids of Various Structures

“…For the analysis of the non-aqueous concentrate, we applied for the first time the method of capillary electrophoresis. The results indicate the possibility of complete separation of tyrosine and glycine at single extraction (Pakhomov and Korenman, 2007).…”

Ultrastable Gold–Copper Nanoclusters on Nitrogen-Doped Graphene Quantum Dots for Selective Electrochemical and Fluorescence Sensing of Glycine

“…Hitherto, no literature reports of the voltammetric sensing of GLY are available, so the comparison of the sensing performance of AuCuNC@N-GQD/GCE was done with methods, such as the enzyme-based chronoamperometry, liquid chromatography, spectrophotometry, fluorescence assay kits, isotopic dilution MS, electrophoretic determination, molecularly imprinted polymer-modified piezo sensor, and capillary zone electrophoresis with contactless conductivity detection, in terms of LOD, LDR, and sensitivity as provided in Table . All the techniques mentioned above utilize indirect GLY sensing methods, such as enzymatic conversions, incorporation into molecularly imprinted polymers, etc.…”