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《化学分析计量》 2020年第02期
DOI:10.3969/j.issn.1008-6145.2020.02.006
气相色谱法快速测定儿童驱蚊扣中菊酯类物质
谭丽君,李欣
湖南省产商品质量监督检验研究院,长沙 410000 
Rapid determination of pyrethroids in mosquito repellent products for children by gas chromatography
TAN Lijun, LI Xin
Hunan testing institute of product and commodity supervision, Changsha 410000, China 
摘要:建立快速测定儿童驱蚊扣中菊酯类残留的气相色谱法。以甲醇为萃取溶剂,萃取液经中性氧化铝固 相萃取小柱净化,以乙酸乙酯为洗脱溶剂,洗脱液经旋转蒸发浓缩后,用电子捕获检测器检测,外标法定量。8 种 菊酯类化合物的质量浓度在0.05~1.00 mg/L 范围内与色谱峰面积成良好的线性关系,相关系数均大于0.998, 检出限为0.48~2.90 μg/L。3 个加标水平样品的平均回收率为93.8%~119.7%,测定结果的相对标准偏差为 0.88%~6.43%(n=5)。该方法样品前处理简便,准确度和精密度良好,可用于驱蚊扣产品中菊酯类物质的检测。 
Abstract:A gas chromatography method for rapid determination of pyrethroids residues in mosquito repellent products for children was establish. Methanol was used as extraction solvent, the extraction liquid was purified by neutral alumina solid-phase extraction column, and ethyl acetate was used as eluent. The eluent was evaporated and concentrated, then detected by electron capture detector, and quantified by external standard method. The mass concentration of 8 pyrethroids had a good linear relationship with the chromatographic peak area in the range of 0.05-1.00 mg/L, the correlation coefficients were all more than 0.998, and the detection limit was 0.48-2.90 μg/L. The average recoveries of the three levels standard addtion samples were 93.8%-119.7%, and the relative standard deviation of determination results was 0.88%-6.43%(n=5). The method is simple in sample pretreatment, and has good accuracy and precision, it can be used to detect pyrethroids in the products of mosquito repellent buckles. 
关键词:驱蚊扣;菊酯类;气相色谱法 
Keywords:mosquito repellent products; pyrethroids; gas chromatography 
基金:湖南省质量技术监督局资助项目(2018KJJH11) 
本文引用格式:
谭丽君,李欣. 气相色谱法快速测定儿童驱蚊扣中菊酯类物质[J]. 化学分析计量,2020,29(2):27-30.
TAN L J,LI X. Rapid determination of pyrethroids in mosquito repellent products for children by gas chromatography[J]. Chemical 

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