首页   按字顺浏览 期刊浏览 卷期浏览 A headspace technique for the determination of volatile compounds in soil
A headspace technique for the determination of volatile compounds in soil

 

作者: PattyH. Kiang,   RobertL. Grob,  

 

期刊: Journal of Environmental Science and Health . Part A: Environmental Science and Engineering  (Taylor Available online 1986)
卷期: Volume 21, issue 1  

页码: 71-100

 

ISSN:0360-1226

 

年代: 1986

 

DOI:10.1080/10934528609375276

 

出版商: Taylor & Francis Group

 

关键词: 49 priority pollutants;headspace;capillary gas chromatography;“zero soil”;reference system;recovery rate;soils

 

数据来源: Taylor

 

摘要:

A headspace technique was developed for the determination of volatile compounds (benzene, toluene, chlorobenzene, ethylbenzene, 1,3‐dichlorobenzene, 1,4‐di‐chlorobenzene and 1,2‐dichlorobenzene) from selected 49 priority pollutants in soil. The headspace sample preparation involved a 20‐mL glass vial containing 3 grams soil and 10 mL of pH 13 spiked solution, equilibrated at 30°C for one hour before 0.5 mL headspace was analyzed by capillary gas chromatography. A reference system was employed at the same time by using 3 grams sand in 10 mL pH 13 spiked solution for the study of the efficiency of the soil headepace analysis. Once the recovery rote between the soil and the reference system is established, the ratio can be used for the determination of other soil samples from the same origin. The relative standard deviation for 3 grams soil sample spiked with 5.1 ppm (51μg / 10 mL.) pollutant mixture in a 20 mL viol is less than 3%.

 

点击下载:  PDF (769KB)



返 回