Liquid Passive Sampler Assessment Study for detection of N,N-dimethylformamide

10.7005/JOSH.201003.0074

Chin-Tang Kuo；Si-Nien Wang；Chih-Chao Tsao

Liquid passive sampler LPS ； N,N-dimethylformamide DMF ； Synthetic leather plant ； Exposure assessment

勞工安全衛生研究季刊

18卷1期（2010 / 03 / 01）

74 - 82

英文

The purpose of this study is to conduct N,N-dimethylformamide (DMF) exposure assessment in polyurethane (PU) synthetic leather plants by using the liquid passive sampler (LPS), examine current sampling methods that use the silica gel tube and activated carbon tube, and, in turn, determine more accurately the level of DMF concentration to which workers are exposed. The study will also explore the detection of DMF in the environment. Detection of DMF exposure concentration involved using five different sampling methods on the factory site, namely, LPS, active samplers (silica gel tube, activated carbon tube), impinger, and badge sampler 3M 3500. Parallel sampling and analysis were undertaken to examine their correlations so as to assess the feasibility of using the LPS for collecting DMF. Results showed that the badge sampler 3M 3500 had the worst performance, followed by the activated carbon tube. Under high humidity, the correlation coefficients of the LPS, silica gel and activated carbon tubes and impinger were all above 0.75A However, under low humidity, the correlation coefficients of the LPS and silica gel tube were both 0.81, yielding similar concentrations. The activated carbon tube had a poor correlation with other samplers. The impinger was the better sampling method but inconvenient to use. The LPS has the advantages of being lightweight, convenient, easy to use, reusable, and with minimal variability, although under high humidity performance will be affected as a result of diffusion. In conclusion, the LPS is shown to be a viable sampling method for DMF.

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