利用液態被動式採樣器對二甲基甲醯胺評估

Assessment of Sampling Efficiency of N,N-Dimethylformamide with the Liquid Passive Sampler

郭錦堂(Ching-Tang Kuo) ； 陳佳惠(Chia-Hui Chen)

《Mid-Taiwan Journal of Medicine》 8卷s_1期 (2003/11) Pp. s57-s64

https://doi.org/10.6558/MTJM.2003.8(s_1).9

摘要

Objectives. The objective of this study was to carry out assessment of sampling efficiency of N,N-dimethylformamide (DMF) in polyurethane manufacturing plants by liquid passive sampler (LiPS). The airborne concentration of DMF was monitored by active and passive sampling methods. Finally, the sampling efficiency of the above sampling methods was evaluated.
Methods. DMF was measured by the active and passive sampling methods at the same time in polyurethane manufacturing plants.
Results. The results showed that LiPS and silica gel tube methods provided similar DMF concentration measurements (21.3 and 21.7ppm, respectively). However, the variance by LiPS was smaller than active sampling with the silica gel tube. The active sampling with the charcoal tube recorded a lower DMF concentration (7.3ppm) than the silica gel tube. Because charcoal is a nonpolar substance, its sampling ability is somewhat limited. Therefore, active sampling with the charcoal tube does not reflect the true concentration in work field. Furthermore, there were no obvious statistical differences in concentration between active and liquid passive sampling (p＞0.05). The coefficient of variance was 6.7%, which indicates that the results of LiPS are reproducible in field work sampling.
Conclusions. The sampling efficiency of LiPS is stable. In addition, LiPS has many advantages over active sampling with the silica gel tube, such as being small in size, easy to use, and recyclable. Therefore, LiPS is a good sampling method and is worth further study.

關鍵字

暴露評估 ； 二甲基甲醯胺 ； 液態被動式採樣器 ； 合成皮工廠

並列摘要

Objectives. The objective of this study was to carry out assessment of sampling efficiency of N,N-dimethylformamide (DMF) in polyurethane manufacturing plants by liquid passive sampler (LiPS). The airborne concentration of DMF was monitored by active and passive sampling methods. Finally, the sampling efficiency of the above sampling methods was evaluated.
Methods. DMF was measured by the active and passive sampling methods at the same time in polyurethane manufacturing plants.
Results. The results showed that LiPS and silica gel tube methods provided similar DMF concentration measurements (21.3 and 21.7ppm, respectively). However, the variance by LiPS was smaller than active sampling with the silica gel tube. The active sampling with the charcoal tube recorded a lower DMF concentration (7.3ppm) than the silica gel tube. Because charcoal is a nonpolar substance, its sampling ability is somewhat limited. Therefore, active sampling with the charcoal tube does not reflect the true concentration in work field. Furthermore, there were no obvious statistical differences in concentration between active and liquid passive sampling (p＞0.05). The coefficient of variance was 6.7%, which indicates that the results of LiPS are reproducible in field work sampling.
Conclusions. The sampling efficiency of LiPS is stable. In addition, LiPS has many advantages over active sampling with the silica gel tube, such as being small in size, easy to use, and recyclable. Therefore, LiPS is a good sampling method and is worth further study.

並列關鍵字

exposure assessment ； Liquid passive sampler ； N,N-dimethylformamide ； polyurethane manufacturing plant