[Determination of 54 volatile hydrocarbons by thermal desorption-gas chromatography in workplace air]
Zhang, NH; Song, GL; Shen, XH; Ying, Y; Zhao, YX; Tang, J
| HERO ID | 735306 |
|---|---|
| In Press | No |
| Year | 2010 |
| Title | [Determination of 54 volatile hydrocarbons by thermal desorption-gas chromatography in workplace air] |
| Authors | Zhang, NH; Song, GL; Shen, XH; Ying, Y; Zhao, YX; Tang, J |
| Journal | Chinese Journal of Analytical Chemistry / Fen Xi Hua Xue |
| Volume | 38 |
| Issue | 3 |
| Page Numbers | 362-366 |
| Abstract | Tenax-TA adsorbent tubes were used to collect 54 volatile hydrocarbon compounds in the workplace air and detected by thermal desorption-gas chromatography. The results showed that the correlation coefficients of 1,1-dichloroethylene, dichloromethane, 1,2-dichloroethylene (trans), 1,2-dichloroethylene (cis), 2,2-dichloropropane, bromochloromethane, 1,1,1-trichloroethane, 1,2-dichloroethane, and 1,1-dichloropropene were between 0.9941 and 0.9986, and the detection limits of bromochloromethane, dibromomethane, trichloromethane, bromodichloromethane, 2,2-dichloropropane, dibromochloromethane, and bromoform were 5.4 to 10.3 ng, and the minimum detection concentration was 0.01 to 0.1 mg/m<sup>3</sup> (sampling volume 0.5 L). The correlation coefficients of the remaining 38 volatile hydrocarbons were all greater than 0.999, and the minimum detection concentration was 0.001-0.01 mg/m<sup>3</sup>; the detection limits of olefins were 0.4-2.7 ng, alkanes were 1.4-3.7 ng, aromatic hydrocarbons were 0.2-1.0 ng, and naphthalene was 2.2 ng; the thermal desorption efficiencies of 54 volatile hydrocarbons were 92.1%-113.1%, and the RSDs were 0.6%-17.4%. The RSD values of -trichloroethane, 1,1-dichloroethylene, 2,2-dichloropropane, trichloromethane, 1,2-dichloroethylene (trans), dichloromethane, and bromochloromethane were between 5.1% and 17.4%, while the RSDs of the other 45 volatile hydrocarbons were all less than 5%; the penetration capacity of 9 compounds was 400-4000 ng, and the penetration capacity of the other compounds was greater than 10000 ng; in the stability experiment, except for 2,2-dichloropropane and bromodichloromethane, the loss rate within 15 days was 10%-15%, and the loss rate of the other 52 compounds was less than 5%. This method can be used for the detection of volatile hydrocarbons in the workplace air, and it is fast and accurate. |
| Doi | 10.3724/sp.j.1096.2010.00362 |
| Wosid | WOS:000276536700012 |
| Url | https://www.sciengine.com/CJAC/doi/10.0000/2adde9f476b741da87f25bea098b5041 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | DOI doesn't link to article |
| Is Public | Yes |
| Language Text | Chinese |
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