气相色谱法测定蔬菜、水果中特丁硫磷砜和特丁硫磷亚砜残留量  

Determination of Terbufos-sulfone and Terbufos-sulfoxide in Vegetables and Fruit by Gas Chromatography

作　　者：张秋园 林晓旭[1] 廖洁莹[1] 陈伟雪 杨路荣 陈镇平[1] 

机构地区：[1]中国广州分析测试中心,广东省化学危害应急检测技术重点实验室,广东广州510070

出　　处：《山东化工》2016年第14期57-58,60,共3页Shandong Chemical Industry

基　　金：广东专业镇中小微企业食品安全与质量控制检测服务平台(2013B091604003);和平县农产品检验检测中心建设(2013B091603005);区域农产品质量安全快速预警系统研发及其在超市的示范应用(2013B040402012)

摘　　要：建立蔬菜、水果中特丁硫磷砜和特丁硫磷亚砜残留量的测定方法。样品经匀浆后,经含氯化钠的乙腈震荡提取,取乙腈层浓缩至近干,用丙酮进行溶解定容,采用DB-1701毛细管色谱柱（30 m×0.25 mm×0.25μm）分离,经气相色谱仪检测。在优化的气相色谱条件下,特丁硫磷砜和特丁硫磷亚砜分离良好,其含量分别在0.137-1.37μg/m L、1.39-13.9μg/m L浓度范围内线性关系良好,相关系数均大于0.998,加标回收率为82.1%-107.6%,相对标准偏差（RSD,n=6）为3.4%-6.8%。该方法灵敏、准确、可靠,能准确的测定蔬菜和水果中的特丁硫磷砜和特丁硫磷亚砜,具有分析时间短、抗干扰性好、定量准确等优点,可为全面实现对蔬菜和水果中的特丁硫磷总量进行监测提供检测依据。To establish a capillary gas chromatography method for the determination of Terbufos -sulfone and Terbufos -sulfoxide in vegetables and fruit .The sample were homogenized , then extracted by acetonitrile with sodium chloride , and evaporated to near dryness , dissolved and constant volume with acetone .The sample was separate by DB -1701 column （30 m ×0.25 mm×0.25μm）, then detected by gas chromatography .Terbufos-sulfone and Terbufos -sulfoxide have good resolution and linear relationship within 0.137 -1.37μg/mL、1.39 -13.9μg/mL concentration range under the optimum conditions.The spiked recoveries were in the range of 82.1%~107.6%with relative standard deviations （RSDs, n=6） of 3.4%-6.8%.The method has the advantages of short peak retention , high sensitivity, accurate, reliable, good reproducibility and selectivity , which can accurate determinated of Terbufos sulfone and Terbufos sulfoxide in fruits and vegetables and can detection basis for comprehensive monitoring the content of the total Terbufos in fruits and vegetables .

关 键 词：气相色谱法 特丁硫磷砜 特丁硫磷亚砜 蔬菜 水果 

分 类 号：S481[农业科学—农药学]