Hydroxyproline interference during the gas chromatographic analysis of D/L aspartic acid in human dentine

Solvent extraction clean-up for pre-trea

Solvent extraction clean-up for pre-treatment in amino acid analysis by gas chromatography : Application to age estimation from the D/l ratio of aspartic acid in human dentine

✍ Iwao Abe; Hideaki Tsujioka; Tamotsu Wasa 📂 Article 📅 1988 🏛 Elsevier Science 🌐 English ⚖ 651 KB

Solvent extraction, a clean-up method for samples for the determination of amino acids by gas chromatography, was investigated and compared with a conventional ion-exchange purification. Amino acids were esterified with isopropanol and extracted with various organic solvents. The solubilities of the