Discussion on stability of mixed standard application solution by volatilization organic compounds in workplace air
10.3760/cma.j.issn.cn121094-20190622-00217
- VernacularTitle: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
- Author:
Peng SHAO
1
;
Shanshan LIU
;
Xueli SHAO
;
Zhen ZHEN
;
Jianping YANG
Author Information
1. 518101 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
- Keywords:
Organic compound;
Workplace;
Air;
Mixed standards;
Application solution;
Stability
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2020;38(8):625-627
- CountryChina
- Language:Chinese
-
Abstract:
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.
