摘要
研究用静态顶空技术处理土壤,从而建立了静态顶空-气相色谱(GC-FID)测定土壤中的乙醛、丙烯醛、丙烯腈和吡啶的检测分析方法。在一定的静态顶空和气相色谱条件下,进行了顶空的时间和温度优化,确定了静态顶空气相色谱法测定土壤中乙醛、丙烯醛、丙烯腈和吡啶方法的检出限,并取得了满意的分离效果、线性回归方程、精密度和准确度。结果表明:用顶空气相色谱法处理土壤样品,可以减少土壤中待测有机物的损失,提高实验分析的灵敏度和准确度。
In this research, static headspace technology is used for preliminary treatment of soils and a detection and analysis method of determination of acetaldehyde, acrolein, acrylonitrile and pyridine in soils is set up by static headspace–gas chromatography. Under a certain condition of static headspace-gas chromatography, time and temperature for static headspace is optimized and detection limits for determination of acetaldehyde, acrolein, acrylonitrile, and pyridine in soils by static headspace–gas chromatography are identified, with satisfactory separation efect, linear regression equation, precision and accuracy achieved. The results indicate that analysis of the target compounds in soils by headspace-gas chromatography can reduce the loss of the organic matter in soils to be determined and improve sensitivity and accuracy of the experimentalanalysis.
出处
《环境保护科学》
CAS
2015年第3期159-162,共4页
Environmental Protection Science
关键词
土壤
静态顶空
气相色谱
Soil
Static Headspace （HS）
Gas Chromatography
