TNT红水污染土壤中二硝基甲苯磺酸盐的分析方法  

Determination of Dinitrotoluene Sulfonates in Soil Samples from TNT Red Water Contaminated Sites

作　　者：丛鑫 姜久宁[1,2] 刘寒冰 姜鑫[3] 蔡震峰 杨兵 薛南冬[2] CONG Xin1,2 , JIANG Jiuning1,2 , LIU Hanbing2 , JIANG Xin3 , CAI Zhenfeng3 , YANG Bing2, XUE Nandong2(1. College of Environmental Science and Engineering, Liaoning Technical University, Fuxin 123000, China ;2. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China; 3. Beijing North Energy Conservation and Environment Protection Co,Ltd, Beijing 100070,Chin)

机构地区：[1]辽宁工程技术大学环境科学与工程学院,辽宁阜新123000 [2]中国环境科学研究院环境基准与风险评估国家重点实验室,北京100012 [3]北京北方节能环保有限公司,北京100070

出　　处：《中国环境监测》2018年第2期103-108,共6页Environmental Monitoring in China

基　　金：国家环境保护公益性行业科研专项(20150934);国家自然科学基金(41571481;41403100)

摘　　要：火炸药厂红水污染土壤中的主要污染物为二硝基甲苯磺酸盐[DNTS,包括2,4-二硝基甲苯-3-磺酸盐(2,4-DNT-3-SO_3^-)和2,4-二硝基甲苯-5-磺酸盐(2,4-DNT-5-SO_3^-)2种异构体]。研究建立了振荡提取-高效液相色谱法测定土壤中DNTS的方法。4种土壤(黄土、棕土、红壤和黑土)和5个浓度水平(50、100、250、500、1 000 mg/kg)时,DNTS的回收率为69.4%~111%,变异系数为0.28%~6.62%(n=3)。应用该方法测定甘肃某火炸药厂红水污染土壤样品,2,4-DNT-3-SO_3^-和2,4-DNT-5-SO_3^-浓度实测值(平均值分别为505、25.2 mg/kg)重复性好,变异系数为1.29%和1.53%(n=3)。Dinitrotoluene sulfonates （DNTS） was the main pollutant of soils contaminated by TNT red water of explosive factory,including 2,4-dinitrotoluene-3-sulfonate （2,4-DNT-3-SO3-） and-5-sulfonate （2,4-DNT-5-SO3-）.This paper introduced a new method for measuring DNTS in soils by oscillations extraction-high performance liquid chromatography.Under the conditions of 4 kinds of soils with five spiked concentrations （50,100,250,500 and 1000 mg/L）,the recovery rates of DNTS were 69.4%-111% with variation coefficients of 0.28%-6.62%.For the determination of DNTS in red water polluted soils from a explosives factory in Gansu province,variation coefficients of 2,4-DNT-3-SO3-（505 mg/kg） and 2,4-DNT-5-SO3-（25.2 mg/kg）concentrations was merely 1.29% and 1.53% （n =3）,respectively.

关 键 词：TNT红水 污染土壤 二硝基甲苯磺酸盐 土液比 

分 类 号：X830.2[环境科学与工程—环境工程]