Determination method for xylidines in workplace air.

Objectives: The purpose of this research was to develop a determination method for xylidines (XLDs) in workplace air for risk assessment.

Methods: The characteristics of the proposed method, such as recovery, detection limit, reproducibility, and storage stability of the samples were examined.

Results: An air sampler cassette containing two sulfuric acid-treated glass fiber filters was chosen as the sampler.

Determination method for nitromethane in workplace air.

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.