Journal
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES
Volume 934, Issue -, Pages 97-101Publisher
ELSEVIER
DOI: 10.1016/j.jchromb.2013.07.003
Keywords
Triclosan; Triclocarban; Nail; Liquid-liquid extraction; LC-MS/MS
Funding
- National Natural Science Foundation of China [21177014]
- Beijing Municipal Senior Technical Training Plan for the Health System
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In this study, we were able to develop a simple analytical procedure to assay the presence of two antimicrobial agents, triclosan (TCS) and triclocarban (TCC), in human nails. Samples were digested using sodium hydroxide (NaOH), extracted using dichloromethane, and analyzed using ultra performance liquid chromatography coupled with electrospray ionization tandem mass spectrometry operating in the negative ion mode. Mean recoveries were performed at three fortification levels ranging from 98.1% to 106.3% with relative standard deviations between 1.8% and 18.1% (n = 6). The limits of quantification (LOQ) for the method were 2.0 and 0.2 mu g/kg for TCS and TCC, respectively. Both compounds were ubiquitously found in all real samples (n = 20) with concentrations ranging from mu g/kg to several mg/kg. (C) 2013 Elsevier B.V. All rights reserved.
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