用脂肪测定仪萃取土壤中石油烃的研究
Study on the Extraction of Petroleum Hydrocarbons from Soil by Fat Analyzer
郏申秀 1杨清1
作者信息
- 1. 上海市岩土工程检测中心有限公司,上海 201900
- 折叠
摘要
《土壤和沉积物 石油烃(C10-C40)的测定 气相色谱法》(HJ 1021-2019)索氏提取法提取溶剂体积为100 mL,提取时间为 16～18 h.本文使用脂肪测定仪,探究在缩短提取时间和减少提取溶剂体积的情况下萃取石油烃(C10-C40)的可行性.结果表明,在提取时间为2 h、3 h、4 h,提取溶剂体积为50 mL、65 mL、80 mL的情况下,空白加标样回收率满足方法中70%～120%的要求,样品加标样的回收率满足方法中 50%～140%的要求.标准样品的测定结果均在不确定度范围以内.本研究结果可为使用脂肪测定仪提取土壤中石油烃(C10-C40)提供参考.
Abstract
Soils and Sediments Determination of Petroleum Hydrocarbons(C10-C40)in Soils and Sediments by Gas Chromatography(HJ1021-2019)The volume of solvent extracted by Soxhlet extraction method is 100 mL,and the extraction time is 16～18 h.In this paper,a fat analyzer was used to explore the feasibility of extracting petroleum hydrocarbons(C10-C40)under the condition of shortening the extraction time and reducing the volume of extraction solvent.The results showed that when the extraction time was 2 h,3 h,4 h,and the extraction solvent volume was 50 mL,65 mL,and 80 mL,the recovery rate of blank added standard sample met the requirements of 70%～120%in the method,and the recovery rate of sample added standard sample met the requirements of 50%～140%in the method.The determination results of standard samples are within the uncertainty range.The results of this study can provide a reference for the extraction of petroleum hydrocarbons(C10-C40)in soil by fat analyzer.
关键词
石油烃(C10-C40)/索氏提取/萃取时间/萃取溶剂体积/土壤Key words
petroleum hydrocarbons(C10-C40)/Soxhlet extraction/extraction time/extraction solvent volume/soil引用本文复制引用
出版年
2024
NETL
NSTL
万方数据