生物灾害科学2025，Vol.48Issue(2)：229-234,6.DOI:10.3969/j.issn.2095-3704.2025.02.29
基于UPLC-QTOF-MS/MS的四种土壤中三氟嘧磺草胺及其五种转化物的不确定度分析
Evaluation of measurement uncertainty for tiafenacil and its five transformation products in four soil types by using UPLC-QTOF-MS/MS
摘要
Abstract
[Objective]This study aimed to evaluate the measurement uncertainty of the UPLC-QTOF-MS/MS method for the determination of specific residues in four different soil types;anthropogenic soil,ferro-bauxite,moist laterite,and latent soil.[Method]According to the relevant standards,the uncertainty assessment and analysis of the residual amount of the target in the soil samples was carried out.[Result]After calculation,when the residual amount of the target tiafenacil in the soil was 0.001 9-0.995 4 μg/kg,its expanded uncertainty was 0.130 9-0.240 9 μg/kg.The uncertainty mainly came from the recovery rate of standard addition(contribution rate 28%),sample pretreatment(contribution rate 24%)and standard solution preparation(contribution rate 20%)in turn.[Conclusion]In this study,the systematic analysis of the residue and determination uncertainty of tiafenacil in different soils was realized,providing key technical support for the accurate determination of the herbicide and effectively improving the reliability of pesticide residue analysis.关键词
不确定度/超高效液相色谱-四极杆飞行时间串联质谱(UPLC-QTOF-MS/MS)/三氟嘧磺草胺/土壤/转化物Key words
uncertainty/UPLC-QTOF-MS/MS/tiafenacil/soil/transformation product分类
植物保护学引用本文复制引用
谢雨君,彭晓民,龚玄彧,吕孜,单洁,欧阳柳荟,周雯雯..基于UPLC-QTOF-MS/MS的四种土壤中三氟嘧磺草胺及其五种转化物的不确定度分析[J].生物灾害科学,2025,48(2):229-234,6.基金项目
大学生创新训练计划校级项目(202410410201)和中央财政林业科技推广示范项目(JXTG[2024]02 号) （202410410201）
