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乌龙茶中7种苯甲酰脲类农药残留的浸出特性

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摘要 本文建立了HPLC-MS/MS测定乌龙荼及其茶汤中7种苯甲酰脲类农药残留的分析方法,方法检出限为0.03 ～ 1.00 ng/mL,定量限为0.09 ～ 3.02 ng/mL,回收率为90.3 ～ 103％.7种农药残留在乌龙茶冲泡过程中的浸出特性：除虫脲在冲泡过程中较容易被浸提出,其次杀铃脲、氟苯脲、氟铃脲、氟啶脲、氟虫脲和啶蜱脲;氟虫脲和氟啶脲在冲泡过程中的浸出特征,似乎只受他们的溶解度控制,而其他5种农药的浸出特征主要受茶和热水之间的分配系数控制.本研究有助于乌龙茶的安全饮用的准确评价.
作者 陈磊
机构地区 国家茶叶质量监督检验中心(福建)
出处 《福建茶叶》 2014年第1期9-13,共5页 Tea in Fujian
关键词 HPLC-MS MS 乌龙茶 苯甲酰脲类农药 浸出特性
分类号 S481.8 [农业科学—农药学]
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福建茶叶
2014年 第1期

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