工作场所空气中挥发性有机物混合标准应用液的稳定性探讨  

Discussion on stability of mixed standard application solution by volatilization organic compounds in workplace air

作　　者：邵鹏[1] 刘姗姗[1] 邵雪力 甄珍[1] 杨建平[1] Shao Peng;Liu Shanshan;Shao Xueli;Zhen Zhen;Yang Jianping(Baoan Center for Disease Control and Provention of Shenzhen city,Key Laboratory for Sanitary Inspection of Baoan District,Shenzhen 518101,China;Zhoukou Food and Drug Inspection Institute,Zhoukou 466000,China)

机构地区：[1]深圳市宝安区疾病预防控制中心,宝安区卫生检验重点学科,518101 [2]周口市食品药品检验所,466000

出　　处：《中华劳动卫生职业病杂志》2020年第8期625-627,共3页Chinese Journal of Industrial Hygiene and Occupational Diseases

摘　　要：目的:研究工作场所空气中挥发性有机物(苯、甲苯、对-二甲苯、间-二甲苯、邻-二甲苯、乙苯、丙酮、丁酮、乙酸乙酯、乙酸丁酯、三氯乙烯)混合标准应用溶液放置的稳定性。方法:2019年2月采用气相色谱法测定,DB-FFAP毛细管柱(30.00 m×0.53 mm×0.25μm)分离氢火焰离子化(FID)检测器检测,研究混合标准应用液放置过程中标准曲线线性相关系数变化、标准曲线最高和最低浓度点相对响应值的变化和质量控制样品测定值是否准确的情况来衡量应用液放置的稳定性。结果:放置187 d混合标准中每种物质的线性相关系数均≥0.999;标准曲线最高和最低浓度点相对响应值的变化均<10%;甲苯的测定值均在参考范围内。结论:混合标准应用液储存187 d内是稳定可靠的。Objective To discuss the stability of mixed standard application solution by volatilization organic matter(benzene,toluene,xylene,ethylbenzene,acetone,butanone,Ethyl acetate,butyl ester,trichloroethylene)in workplace air.Methods A total of 11 kinds volatilization organic compounds were separated by capillary chromatographic column,and detected with flame ionization detector.The stability of mixed standard application solution was judged by studying three paratemers during the placement period,such as the linear correlation coefficient of the standard curve,the relative response values of the highest and lowest concentration levels and the accuracy of the measured values of the quality control samples.Results Within 187 days,the linear correlation coefficient of each compound was≥0.999.The changes of relative response values at the highest and lowest concentration levels were both<10%;The measured values of toluene were all in the reference range.Conclusion The mixed standard application solution is stable and reliable within 187 days of storage.

关 键 词：有机物 工作场所 空气 混合标准 应用液 稳定性 

分 类 号：R134.4[医药卫生—劳动卫生]