固相萃取
萃取(化学)
吸附剂
检出限
色谱法
农药残留
化学
萘
残留物(化学)
杀螟松
环境友好型
杀虫剂
分析物
环境化学
吸附
有机化学
生物
生态学
农学
作者
Qingqing Zhang,Weiming Xiao,Yuqin Wu,Yunxue Fan,Wenhaotian Zou,Ke Xu,Yuan Yuan,Xuejin Mao,Yuanxing Wang
出处
期刊:Food Chemistry
[Elsevier]
日期:2022-03-01
卷期号:372: 131208-131208
被引量:15
标识
DOI:10.1016/j.foodchem.2021.131208
摘要
A simple, environmentally-friendly and reliable method was developed to simultaneously monitor the residue of methyl 1-naphthalene acetate, parathion-methyl, fenitrothion, bromophos and phenthoate in pomelo by using dispersive solid-phase extraction technique (d-SPE). In this method, these target analytes were captured by MIL-125-NH2 and detected by GC-MS/MS. The key parameters of d-SPE were optimized by the single factor experiment. Under the optimized conditions, a good determination coefficient (R2 > 0.9922) and extraction recoveries (64.7-116.8%) are obtained. The limit of detections (0.03-1.07 ng/g) is lower than the MRLs in citrus fruits established by EU (10-15000 ng/g) and China (10-10000 ng/g). The precisions of intra-day and inter-day are 1.3-8.9% and 3.8-14.9%, respectively. In addition, the sorbent MIL-125-NH2 is stable and can be reused at least eight times. These results prove the established method is efficient and reliable to detect the pesticide residues in pomelo.
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