A method has been developed for the simultaneous determination of four plant growth regulators (PGRs) residues in soybean sprouts and mung bean sprouts. The sample preparation procedure was based on a QuEChERS method. The method showed excellent linearity (r2 ≥ 0.9985) and precision (RSDs ≤ 13.0 %). Average recoveries of four PGRs ranged between 74.9 % and 106.3 % at spiking levels 0.05, 0.5 and 1 mg kg−1. The LODs and LOQs were in the ranges of 0.27–9.3 μg kg−1 and 0.90–31 μg kg−1, respectively. The procedure was applied to 18 bean sprout samples, and benzyladenine was found in some of the analyzed samples.
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The authors are grateful for the support from Chinese National Modern Industrial Technology System Foundation, P. R. of China (Project No: CARS-09-G15) and Chinese National Natural Science Foundation Support (Project No: 31171872).
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Zhang, F., Zhao, P., Shan, W. et al. Development of a Method for the Analysis of Four Plant Growth Regulators (PGRs) Residues in Soybean Sprouts and Mung Bean Sprouts by Liquid Chromatography–Tandem Mass Spectrometry. Bull Environ Contam Toxicol 89, 674–679 (2012). https://doi.org/10.1007/s00128-012-0739-z
- Bean sprouts