引用本文:蔡灏兢.甲醇提取-吹扫捕集-气质联用法快速测定土壤中8种苯系物[J].环境监控与预警,2021,13(4):26-29
CAI Hao-jing.Rapid Determination of Eight Kinds of Benzene Series in Soil by Methanol Extraction Purge &Trap Gas Chromatography Mass Spectrometry[J].Environmental Monitoring and Forewarning,2021,13(4):26-29
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 387次   下载 149 本文二维码信息
码上扫一扫!
分享到: 微信 更多
甲醇提取-吹扫捕集-气质联用法快速测定土壤中8种苯系物
蔡灏兢
作者单位
蔡灏兢 苏州市昆山环境监测站江苏 昆山 215316 
摘要:
采用甲醇提取-吹扫捕集的前处理方法并结合气相色谱-质谱仪来测定土壤样品中的8种苯系物。实验结果表明,8种苯系物在前处理过程中被有效提取出来并被准确定性和定量,对于低浓度样品也具有良好的实验效果。此方法的检出限为0.3~0.8 μg/kg,测定下限为1.2~3.2 μg/kg。加标低、中、高3种不同质量比的标准物质,经实验分析土壤中8种苯系物相对标准偏差(RSD)为2.1%~6.8%,加标回收率为91.0%~105%,与相关行业标准相比具有一定的优势。
关键词:  甲醇提取  吹扫捕集  气质联用  土壤  苯系物
DOI:
分类号:X833;O657.63
基金项目:
Rapid Determination of Eight Kinds of Benzene Series in Soil by Methanol Extraction Purge &Trap Gas Chromatography Mass Spectrometry
CAI Hao-jing
Abstract:
Eight kinds of benzene series in soil samples are determined by the pretreatment method of automatic methanol extraction followed by purge & trap GCMS. The experimental results showed that eight kinds of benzene series could be well extracted in the pre treatment process and be accurately qualitatively and quantitatively determined, and it also showed good experimental results for low concentration samples.The detection limit of this method ranged from 0.3 to 0.8 μg/kg, and the quantification limit were in the range of 1.2~3.2 μg/kg. The relative standard deviations (RSD) of eight kinds of benzene series in soil were in the range of 2.1%~6.8%, and the recoveries were in the range of 91.0%~103%, which showed certain superiority compared with the relevant industrial standards.
Key words:  Methanol extraction  Purge & trap  Gas chromatography mass spectrometry  Soil  Benzene series