[Method for determining o-tolidine in workplace air by gas chromatography].

Objective: To establish a method for determining o-tolidine in workplace air by gas chromatography.

Methods: o-tolidine in workplace air was collected with a glass fiber filter, desorbed with methanol, and determined by gas chromatography-flame ionization detector.

Results: The concentration of o-tolidine showed a linear relationship with peak area within 0.