期刊
FOOD CHEMISTRY
卷 370, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2021.131261
关键词
Clenbuterol; Gelatin; Jelly; Trace concentrations; Contaminants; Anti-doping; UHPLC-MS/MS
资金
- DGAPA-UNAM [PAPIIT IA209220]
A method for identifying and quantifying traces of clenbuterol in gelatin and jellies was successfully developed and validated in this study, showing high sensitivity, good selectivity, and short chromatographic run time. The results indicated that 57.4% of gelatin samples contained clenbuterol.
Clenbuterol is present in animal tissues and organs and, therefore, potentially present in gelatin derived from animal sources. The objective of this study was to develop a method for identify an quantify traces of clenbuterol in gelatin and jellies. The clenbuterol calibration curve showed linearity in the range of 20-1000 pg mL(-1). The detection and quantification limits were 5 pg g(-1) and 10 pg g(-1), respectively. The recovery of the analyte ranged from 93.4 to 98.7% with an intra-day RSD% (n = 4) of 1.25%-3.25%, and an inter-day RSD% (n = 12) of 0.5%-2.25%, with good linearity (R-2 = 0.99). The method developed and validated was successfully applied in 54 gelatin samples, 57.4% of which showed clenbuterol. This UHPLC-MS/MS method combines high sensitivity with good selectivity and short chromatographic run time.
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