Gas chromatographic method for determination of air methylcyclohexane in workplace

VernacularTitle:工作场所空气中甲基环己烷的气相色谱测定方法
Author: Jiazhang XU ¹ ; Wei CHEN ; Quan SHEN
Author Information

1. Anti-Epidemics Station
From: Chinese Journal of Industrial Hygiene and Occupational Diseases 2001;19(2):134-136
CountryChina
Language:Chinese
Abstract: Objective　To establish gas chromatographic method for determination of air methylcyclohexane in workplace. Method　This method was based on “Standardization of methods for determination of toxic substances in workplace air". Results　Breakthrough capacities of 100 mg of active carbon was >15.05 mg.Absorption efficiencies were 99.64%～100% when methylcyclohexane concentrations were 21.7～127.0 mg/m3.The sample could be stored in the active carbon tube at least for 8 days. Precision(RSD) was 4.4%～8.4%.Desorption efficiencies were 91.8%～96.6%,the lowest detection limit was 0.13 mg/m3.Other volatilizable organic solvents,e.g.,benzene,n-heptane,n-hexane,toluene were not interferences. Conclusion　This method meets the requirement of "Standardization of methods for determination of toxic substances in workplace air". It is suitable for determination of methylcyclohexane in workplace air.