Determination Method for Nitromethane in Workplace Air
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- Takeuchi Akito
- Osaka Occupational Health Service Center, Japan Industrial Safety and Health Association
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- Nishimura Yasuki
- GL Sciences Inc.
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- Kaifuku Yuichiro
- GASTEC Corporation
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- Imanaka Tsutoshi
- GL Sciences Inc.
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- Natsumeda Shuichiro
- Chemical Risk Management Support Center, Japan Industrial Safety and Health Association
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- Ota Hirokazu
- Osaka Occupational Health Service Center, Japan Industrial Safety and Health Association
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- Yamada Shu
- Chemical Risk Management Support Center, Japan Industrial Safety and Health Association
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- Kurotani Ichiro
- Chemical Risk Management Support Center, Japan Industrial Safety and Health Association
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- Sumino Kimiaki
- Osaka Occupational Health Service Center, Japan Industrial Safety and Health Association
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- Kanno Seiichiro
- National Institute of Occupational Safety and Health
Bibliographic Information
- Other Title
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- Brief report: Determination method for nitromethane in workplace air
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Abstract
Objectives: The purpose of this research was to develop a determination method for nitromethane (NM) in workplace air for risk assessment. Methods: A suitable sampler and appropriate desorption condition were selected by a recovery test in which a spiked sampler was used. The characteristics of the proposed method, such as recovery, detection limit, and reproducibility, and the storage stability of the sample were examined. Results: A sampling tube containing bead-shaped activated carbon was chosen as the sampler. NM in the sampler was desorbed with acetone and analyzed by a gas chromatograph equipped with a flame ionization detector. The recoveries of NM from the spiked sampler were 81-97% and 80-98% for personal exposure monitoring and working environment measurement, respectively. On the first day of storage in a refrigerator, the recovery from the spiked samplers exceeded 90%; however, it decreased dramatically with increasing storage time. In particular, the decrease was more remarkable for the smaller spiked amounts. The overall LOQ was 2 μg/sample. The relative standard deviation, which represents the overall reproducibility, was 1.1-4.0%. Conclusions: The proposed method enables 4-hour personal exposure monitoring of NM at concentrations equaling 0.001-2 times the threshold limit value-time-weighted average (TLV-TWA: 20 ppm) proposed by the American Conference of Governmental Industrial Hygienists, as well as 10-minute working environment measurement at concentrations equaling 0.02-2 times TLV-TWA. Thus, the proposed method will be useful for estimating worker exposure to NM.<br>
Journal
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- Journal of Occupational Health
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Journal of Occupational Health 52 (3), 194-197, 2010
Japan Society for Occupational Health
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Details 詳細情報について
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- CRID
- 1390001204454233984
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- NII Article ID
- 10030705112
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- NII Book ID
- AA11090645
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- ISSN
- 13489585
- 13419145
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- NDL BIB ID
- 10696151
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed