Determination of ethylenediamine in the air of workplace by Ion chromatography
10.3760/cma.j.issn.1001-9391.2018.10.016
- VernacularTitle: 工作场所空气中乙二胺测定的离子色谱法
- Author:
Changmei ZHOU
1
;
Hao ZHANG
;
Jian WU
;
Linyun ZHANG
;
Xiaojuan LI
Author Information
1. Provincial Center for Disease Control and Prevention, Nanjing 210009, China
- Publication Type:Journal Article
- Keywords:
Ethylenediamine;
Workplace;
Air;
Chromatography (IC)
- From:
Chinese Journal of Industrial Hygiene and Occupational Diseases
2018;36(10):776-778
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a method to detect the concentrations of ethylenediamine in the air of workplace by Ion chromatography.
Methods:Ethylenediamine in the air of workplace adsorpted by Silicone tube, then ultrasonic desorped by Sulfuric acid solution (0.1 mol/L) , the desorption solution qualitative and quantitative determination by Ion chromatography.
Results:For ethylenediamine, the calibration curves were liner in the range of 0.1-100.0 μg/ml, the method detection limit is 0.1 μg/ml, the minimum detectable concentration is 0.13 mg/m3 (in terms of sampling 7.5 L) . The desorption efficiency is more than 90% on spiked levels of 2.0, 4.0 and 8.0 μg/ml, the average desorption efficiency of the method was 96.1%, the precision was 1.8%-2.1%. The recovery rate of the added standard is 98.5%-104.2%.
Conclusion:The method simplifies the preprocessing steps and improves the sensitivity. All the indexes are in conformity with the requirements of the method formulation guide. It is suitable for the determination of ethylenediamine in the air of the workplace.
