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首页> 外文期刊>Bulletin of Environmental Contamination and Toxicology >Determination of bromothalonil residues and degradation in apple and soil by QuEChERS and GC-MS/MS.
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Determination of bromothalonil residues and degradation in apple and soil by QuEChERS and GC-MS/MS.

机译：用QuEChERS和GC-MS / MS测定苹果和土壤中的溴苯甲腈残留量和降解量。

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摘要

The dissipation and residues of bromothalonil in apple and soil under field condition were analyzed by QuEChERS (quick, easy, cheap, effective, rugged and safe) combined with gas chromatography-mass spectrometer method. The recoveries were ranged from 80.8 % to 106 % with coefficient variation for repeatability ranged from 3.08 % to 7.09 % at fortification levels of 0.02, 0.04 and 0.2 mg/kg in apple and soil. The limit of quantification of the method was 0.31 mug/kg. The dissipation rates of bromothalonil followed the first-order kinetics and the half-lives were from 3.61 to 3.98 days in apple and from 4.65 to 9.29 days in soil. In apple, the terminal residues of bromothalonil were below the China maximum residue limit (0.2 mg/kg) after 7 days of application. This work contributed to provide the basic information for a safe usage of bromothalonil in apple orchard and preventing health problem from consumers in China
机译：通过QuEChERS（快速，简便，廉价，有效，坚固耐用和安全）结合气相色谱-质谱仪分析了野外条件下苹果和土壤中溴菌腈的消散和残留。在苹果和土壤中的强化水平分别为0.02、0.04和0.2 mg / kg时，回收率范围为80.8％至106％，重复性系数变化范围为3.08％至7.09％。该方法的定量限为0.31马克杯/千克。溴苯甲腈的耗散率遵循一级动力学，苹果的半衰期为3.61至3.98天，土壤的半衰期为4.65至9.29天。在苹果中，溴麦芽甲腈的最终残留量在施用7天后低于中国最大残留限量（0.2 mg / kg）。这项工作为在苹果园中安全使用溴莫尼提供了基础信息，并为防止中国消费者的健康问题提供了基础信息。

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