[Personal monitoring method for volatile chloroorganic compounds].
A method for measurement of volatile chloroorganic compounds (VCOCs) in air by using porous polymer resin beads, Porapak N was developed as follows: 1. Air was sampled in a glass collection tube packed with Porapak N (1.2 g) at flow rate of 30 ml/min for 24 hours at room temperature. 2. The collection tube was set in a desorption device. The VCOCs adsorbed on the Porapak N were desorbed by heating in a nitrogen flow (180 degrees C, 50 ml/min) and trapped in 10 ml n-hexane cooled by ice. Sufficient recoveries were obtained at desorption time of 8 min. 3. The VCOCs were determined by a gas chromatograph with an electron capture detector (GC-ECD). The present method was applied to determine personal exposure levels for VCOCs. Personal exposure levels of 1,1,1-trichloroethane, carbon tetrachloride, trichloroethylene and tetrachloroethylene were 1.1-6.9, 0.1-0.9, N.D-0.4 and N.D.-4.2 ppb, respectively.
Matsumura
T
T
National Institute of Hygienic Sciences.
Kametani
K
K
Takeda
M
M
Ito
K
K
Muramatsu
S
S
Kato
S
S
D000388:Air / Q000032:analysis; D002713:Chlorine / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods; D006801:Humans; D014835:Volatilization
D002713:Chlorine