Ion chromatography for the determination of n-butylamine in the workplace air

VernacularTitle:工作场所空气中正丁胺测定的离子色谱法
Author: Lu CHEN ¹ ; Yapan LIU ; Li YANG ; Huifang YAN
Author Information

1. 武汉市职业病防治院卫生检验科，武汉　430015
Keywords: Workplace; Air; N-butylamine; Ion chromatography
From: Chinese Journal of Industrial Hygiene and Occupational Diseases 2024;42(3):206-209
CountryChina
Language:Chinese
Abstract: Objective:To establish a method for the determination of n-butylamine in the air of the workplace by ion chromatography.Methods:In February 2022, on-site sampling was carried out using an atmospheric sampler. N-butylamine was adsorbed by a neutral silica gel tube and then performed for qualitative and quantitative determination by ion chromatography after ultrasonic desorption with 10 mmol/L sulfuric acid solution.Results:The linear range of the method was 0.0375-100.0 μg/ml, the linear equation of the standard curve was y=0.0713 x-0.0327, the correlation coefficient was 0.9992. The detection limit of the method was 11.25 μg/L, and the lower limit of quantification was 37.50 μg/L, the lowest quantitative concentration was 0.025 mg/m 3 (in term of sampling 7.5 L). The average desorption efficiency of the method was 91.50%-95.38%, the precision was 1.10%-2.30%, the standard recovery was 83.83%-100.02%, sampling efficiency was 100.00%. Conclusion:This method is fast, sensitive and accurate, and can be used for the determination of n-butylamine in the air of workplace.