摘要
目的建立气相色谱分析测定大批量空气样品中丙烯酰胺(ACR)含量的方法。方法使用多孔玻板吸收管和硅胶采样管分别进行定点、个体采样,样品经前处理后用毛细管柱气相色谱(ECD)在汽化室240℃、柱温220℃、检测器250℃、分流比1∶20、柱流量3.0 ml/min、进样量2.0μl的色谱条件下分析测定。结果本方法的线性范围为0.10～2.0μg/ml,回归方程为y=3 186 918.407 99x+4 388.270 81,相关系数为0.999 7,检出限为1.4×10-5μg/ml,保留时间为1.633min。结论本法快速、灵敏准确,适用于大批量现场样品的分析测定。
Objective To establish a method for the determination of acrylamide in large batch of air samples from workplace by gas chromatography. Methods The air samples were separately taken by area and personal sampling using multi-hole absorbing tubes and silica gel tubes. The treated samples were detected by capillary column gas chromatography with ECD at following chromatographic condition： 240 ℃ for injector temperature, 220 ℃ for column temperature, 250 ℃ for detector temperature, 1：20 for split ratio , 3.0 ml/min for column flow rate, 2.0 μl for injection volume. Results The linear range was 0.10-2.0 μg/ml, the linear equation was y=3 186 918.407 99x＋4 388.270 81 （r=0.999 7）, the limit of detection was 1.4×10^-5 μg/ml （S/N=3）,the retention time was 1.633 rain. Conclusion This method is rapid, sensitive, accurate and applicable for determination of acrylamide in large batch of air samples from workplace.
出处
《环境与健康杂志》
CAS
CSCD
北大核心
2011年第5期427-429,共3页
Journal of Environment and Health
基金
国家自然科学基金(30872088)
关键词
毛细管柱
气相色谱
硅胶采样管
多孔玻板
丙烯酰胺
Capillary column
Gas chromatography
Silica gel tubes
Multi-hole absorbing tubes
Acrylamide
