Determination of multiclass contaminants in chilli powder based on magnetic multiwalled carbon nanotubes and UPLC-QTOF/MS
文献类型： 外文期刊
作者： He, Guangyun 1 ; Hou, Xue 1 ; Han, Mei 1 ; Qiu, Shiting 1 ; Yu, Xi 3 ; Qin, Shudi 1 ; Wang, Fengyi 1 ; Li, Ying 1 ;
作者机构： 1.Sichuan Acad Agr Sci, Inst Qual Stand & Testing Technol Agroprod, Chengdu 610066, Peoples R China
2.Chengdu Minist Agr, Lab Qual & Safety Risk Assessment Agroprod, Chengdu 610066, Peoples R China
3.Macau Univ Sci & Technol, Fac Med, Taipa 999078, Peoples R China
关键词： Multiclass analysis; Mycotoxin; Colourant; Pesticide; UPLC-QTOF/MS; Chilli powder
期刊名称：FOOD RESEARCH INTERNATIONAL （ 影响因子：8.1； 五年影响因子：7.7 ）
ISSN： 0963-9969
年卷期： 2023 年 173 卷
页码：
收录情况： SCI
摘要： A multiclass analysis approach was developed using magnetic multiwalled carbon nanotubes sorbents and ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-QTOF/MS) for the rapid screening and simultaneous determination of 216 contaminants including 15 mycotoxins, 9 synthetic colourants, and 192 pesticides in chilli powder. The sample preparation process was optimized. The optimal preparation procedure utilized NaCl and NaAc as the salting-out agents, and Fe3O4-MWCNTs as the sorbents, resulting in reduced chemical consumption, improved cleaning performance, and facilitated high-throughput analysis. The proposed method was validated, and satisfactory parameters were obtained. Approximately 85.6% of the target analytes exhibited a weak matrix effect, with the matrix effects falling within the range of 0.8 -1.2. The method demonstrated acceptable recoveries of the analytes, falling within the range of 62.14%-119.76% at three fortified levels with relative standard deviations (RSDs) of less than 20%. Additionally, the method's limit of quantification (LOQ) ranged from ranged from 0.50 & mu;g & BULL;kg 1 to 49.56 & mu;g & BULL;kg 1. The method was further applied for analysis of 27 chilli powder samples, demonstrating its potential for screening and quanti-fication of multiclass contaminants for spices.
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