顶空-气相色谱法测定土壤中乙酸正丁酯的残留量  

Determination of Residual N-butyl Butyrate in Soil by Headspace-gas Chromatograph(HS-GC)

作　　者：刘瑞 赖华杰 Liu Rui;Lai Huajie(Sun Yat-sen University, Guangzhou 510275;Guangzhou CAS Testing & Techonology Services Co., Ltd.,Guangzhou 510650;Guangzhou Institute of Chemistry, Chinese Academy of Science, Guangzhou 510650, China)

机构地区：[1]广州中科检测技术服务有限公司,广东广州510650 [2]中科院广州化学有限公司,广东广州510650 [3]中山大学,广东广州510275

出　　处：《广东化工》2019年第8期170-171,共2页Guangdong Chemical Industry

基　　金：广东省省级科技计划项目-粤东中科检测技术服务中心(2017A040403030)

摘　　要：本文建立了顶空气相色谱法测定土壤中乙酸正丁酯残留量的方法。方法:使用DB-1(30 m×0.25 mm×0.25μm),FID检测器,样品在80℃下平衡30分钟。结果:乙酸正丁酯在0.5～50μg/m L范围内线性回归方程为Y=89650.18*X+22035.84(r=0.9999);加标回收率(n=9)为90%～115%之间,重复性试验中浓度相对标准偏差为5.09%,检出限为0.0248 mg/kg。结论:该方法简便、准确度高、灵敏度高、重现性好,可满足多种土壤中乙酸正丁酯残留量的检测。A headspace-gas chromatograph method was established for determination of residual n-butyl butyrate in soil. Method: Using a DB-1(30 m× 0.25 mm×0.25 μm)column with FID as detector, samples had been equilibrated at 80 ℃ for 30 minutes.Results: The calibration curves of n-butyl butyrate was Y=89650.18*X+22035.84 showed good linearity in the range of 0.5~50 μg/m L(r=0.9999).The standard recovery rate(n=9) was between 90 % and 115 %;The concentration relative standard deviation(RSD)in the repeated test was 5.09 %;T he detection limit was 0.0248 mg/kg. Conclusion: The method is simple, accurate, sensitive and reproducible, and can be used to detect the residual n-butyl acetate in various soils.

关 键 词：乙酸正丁酯 土壤 顶空-气相色谱 

分 类 号：O65[理学—分析化学]