田间处理的柿子果实中克菌丹和敌百虫的残留水平，单个样本与混合样本对比，以及家庭加工后的残留水平。

Residue levels of captan and trichlorfon in field-treated kaki fruits, individual versus composite samples, and after household processing.

作者信息

Fernández-Cruz M L, Grimalt S, Villarroya M, López F J, Llanos S, García-Baudín J M

机构信息

Departamento de Protección Vegetal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Carretera de la Coruña km 7.5, E-28040 Madrid, Spain.

出版信息

Food Addit Contam. 2006 Jun;23(6):591-600. doi: 10.1080/02652030500529460.

DOI:10.1080/02652030500529460

PMID:16766458

Abstract

The dissipation of residue levels of captan and trichlorfon in field-treated kaki crops was studied according to good laboratory practices to propose maximum residue limits (MRLs). Residue levels of captan and trichlorfon were analysed by GC/MS and LC-MS/MS, respectively. Residue levels of captan and trichlorfon permitted one to propose MRLs in kaki of 3 and 5 mg kg(-1), respectively. The behaviour of these residues was also studied after peeling and cooking, and in individual fruits versus composite samples. Residue levels of these compounds for individual fruits suggested that a variability factor up to three could be set for the acute risk assessment. Levels of captan decreased by more than 90% after peeling and completely after cooking. Trichlorfon penetrates into the flesh in a proportion of 70% of the residue at the pre-harvest interval. Cooking resulted in a decrease of 27% of residue levels of trichlorfon.

摘要

按照良好实验室规范研究了在田间处理的柿树上多菌灵和敌百虫残留水平的消散情况，以提出最大残留限量（MRL）。分别采用气相色谱/质谱联用仪（GC/MS）和液相色谱-串联质谱仪（LC-MS/MS）分析多菌灵和敌百虫的残留水平。多菌灵和敌百虫的残留水平使得能够分别提出柿树中3和5 mg kg⁻¹的最大残留限量。还研究了这些残留物在去皮和烹饪后以及单个果实与混合样品中的行为。单个果实中这些化合物的残留水平表明，急性风险评估中可设定高达3倍的变异系数。去皮后多菌灵残留水平降低超过90%，烹饪后则完全消失。在收获前间隔期，敌百虫以残留量的70%渗入果肉。烹饪使敌百虫残留水平降低27%。