Residues and Dietary Risk Assessment of Imidacloprid in Bamboo Shoot (Phyllostachys praecox), Winter Jujube (Ziziphus jujuba Mill. cv. Dongzao), Dendrobium officinale Kimura et Migo, and Fritillaria

The widespread use of pesticides poses significant risks to food and environmental safety. Imidacloprid is one the most effective neuroactive neonicotinoid insecticides against a broad spectrum piercing–sucking pests. A rapid, efficient, high-throughput analysis method for determination imidacloprid was developed in four minor crops with six matrices (bamboo shoot, winter jujube, fresh dry D. officinale, Fritillaria) by solid-phase extraction HPLC-MS/MS. procedure showed satisfying recoveries (72~111%) RSDs (1~13%). total 288 samples were tested China (Aba Luan). residues 100% detected officinale concentrations ranging from 0.048 1.550 mg·kg−1. also abundant Fritillaria (maximal concentration 0.021 0.063 mg·kg−1, respectively), followed bamboo which had lowest detection rate (6%). Using risk quotient (RQ) method, long-term (RQc) short-term (RQa) dietary further monitored. Based on this paper, RQc RQa 15.03% 0.0008~1.7604%, respectively. RQ values far less than 100%, showing that Chinese consumers face little health as result intake.