文献类型：期刊文献

英文题名：Simultaneous quantification of eleven short-chain fatty acids by derivatization and solid phase microextraction - Gas chromatography tandem mass spectrometry

作者：Fu, Zhibo[1];Jia, Qiangqiang[1,3];Zhang, Hongyang[1];Kang, Lu[1];Sun, Xuezhi[1];Zhang, Min[2];Wang, Yuerong[1];Hu, Ping[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Shanghai Key Lab Funct Mat Chem, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Engn Res Ctr Pharmaceut Proc Chem, Sch Pharm, Minist Educ, Shanghai, Peoples R China;[3]Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Peoples R China

年份：2022

卷号：1661

外文期刊名：JOURNAL OF CHROMATOGRAPHY A

收录：;EI(收录号：20215011320390);WOS:【SCI-EXPANDED(收录号:WOS:000729415200009)】；

基金：This research was funded by the National Natural Science Foundation of China (Grant number 81973285).

语种：英文

外文关键词：Headspace solid phase microextraction; Derivatization; Gas chromatography tandem mass; spectrometry; Feces of mice

摘要：As metabolites of the gut microbiome, short-chain fatty acids (SCFAs) played an important role in the diagnosis of the metabolic diseases. Because of the high polarity, high volatility and complex matrix of biological samples, the highly sensitive, selective and accurate method to determine SCFAs remains a major challenge. Herein, a new method for simultaneous quantification of eleven SCFAs by derivatization combined with solid phase microextraction (SPME) and gas chromatography tandem mass spectrometry (GC-MS/MS) was developed. Isobutyl chloroformate coupled with isobutanol was used as the reaction reagent to derivatize SCFAs. The method validation data showed a satisfactory linearity with the linear regression coefficients (R) ranging from 0.9964 to 0.9996. The limit of detection (LOD) of all SCFAs ranges from 0.01 ng.mL(-1) to 0.72 ng.mL(-1) and the limit of quantification (LOQ) ranges from 0.04 ng.mL(-1) to 2.41 ng.mL(-1) . The intra-day and inter-day precision (RSDs) ranged from 0.65% to 8.92% and 1.62% to 15.61%, respectively. The recovery ranged from 88.10% to 108.71%. Finally, the developed method was successfully used to determine SCFAs in mice fecal sample, and ten of the SCFAs were found in feces of mice, including formic acid. (C) 2021 Elsevier B.V. All rights reserved.