Determination of Free Histidine in Complex Hair Care Products with Minimum Sample Preparation Using Cation-Exchange Chromatography and Post Column Derivatization

Autor:	Apostolia Tsiasioti, Constantinos K. Zacharis, Paraskevas D. Tzanavaras
Jazyk:	angličtina
Rok vydání:	2023
Předmět:	histidine high-pressure liquid chromatography postcolumn derivatization fluorescence hair care products Organic chemistry QD241-441
Zdroj:	Molecules, Vol 28, Iss 2, p 888 (2023)
Druh dokumentu:	article
ISSN:	1420-3049
DOI:	10.3390/molecules28020888
Popis:	In this communication, we describe the first analytical method for the determination of free histidine in hair care products (shampoos and conditioners). Cation-exchange chromatography combined with postcolumn derivatization and fluorimetric detection enabled the accurate (recovery: 83.5–114.8%) and precise (2.4–5.6% RSD) determination of free histidine without matrix interferences at concentration levels down to 1.5 mg kg−1. Real commercially available samples were found to contain the amino acid at levels ranging between 70 and 535 mg kg−1.
Databáze:	Directory of Open Access Journals
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