Abstract Bubble-in-drop microextraction (BID) is a variation of single-drop microextraction in which an air bubble is deliberately introduced to the solvent to enhance extraction efficiency. Here, BID coupled with GC-MS was developed for the extraction, enrichment and determination of carbamate pesticides in environmental water samples. Conditions affecting BID performance including the type of extraction solvent and its volume, volume of air bubble, extraction time, stirring rate, salt concentration and sample pH were evaluated. Under the most favorable BID conditions, the method provided good linearities from 0.05 to 20.0 μg L−1 with the coefficients of determination higher than 0.99. Enrichment factors were determined to be between 536 and 1097. The limits of detection and limits of quantification were in the ranges of 0.02 to 0.04 μg L−1, and 0.05 to 0.13 μg L−1, respectively. BID-GC-MS was successfully applied to the determination of carbamate pesticides in water samples with satisfactory recoveries from 81.7% to 99.0%, and intra-day and inter-day precision (relative standard deviations of

中文翻译：

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氨基甲酸酯类农药的滴泡微萃取，然后进行气相色谱-质谱分析

摘要 滴中气泡微萃取 (BID) 是单滴微萃取的一种变体，其中有意将气泡引入溶剂中以提高萃取效率。在这里，BID 结合 GC-MS 被开发用于环境水样中氨基甲酸酯类农药的提取、富集和测定。评估了影响 BID 性能的条件，包括提取溶剂的类型及其体积、气泡体积、提取时间、搅拌速率、盐浓度和样品 pH 值。在最有利的 BID 条件下，该方法在 0.05 到 20.0 μg L-1 范围内提供了良好的线性，测定系数高于 0.99。富集因子被确定在 536 和 1097 之间。检测限和定量限在 0.02 到 0.04 μg L-1 的范围内，和 0.05 至 0.13 μg L-1，分别。BID-GC-MS 成功应用于水样中氨基甲酸酯类农药的测定，回收率从 81.7% 到 99.0%，以及日内和日间精密度（相对标准偏差为