首页|液相色谱-三重四极杆质谱法测定土壤中12种苯胺类化合物

液相色谱-三重四极杆质谱法测定土壤中12种苯胺类化合物

扫码查看
本研究采用超声萃取-液相色谱-三重四极杆质谱法,对土壤中12种苯胺类化合物的前处理方法和标准曲线配制方式进行优化研究,确定了超声提取、离心、浓缩等前处理条件,并通过性能指标和实际样品的测定,考察了实验方法的适用性.实验证明:采用优化后的方法进行实际样品前处理和配制校准曲线,除2,4-二甲基苯胺和4-硝基苯胺相关系数>0.995外,其余化合物相关系数均在0.999以上.12种苯胺类化合物方法检出限为1~4 μg/kg,低、中、高空白加标样品相对标准偏差为1.5%~7.3%,加标回收率为76.2%~110%.该方法条件明确,操作简便,在检测土壤样品时,可提高样品检测的准确性和工作效率.
Determination of 12 Aniline Compounds in Soil by Liquid Chromatography-Triple Quadrupole Mass Spectrometry
This research studies the optimization of pretreatment methods and standard curve configuration of 12 aniline com-pounds in soil via ultrasonic extraction,liquid chromatography-triple quadrupole mass spectrometry,confirmed the pre-treat-ment conditions such as ultrasonic extraction,centrifugation and concentration,method feasibility was verified by actual sam-ples determination.The results show that by conducting the optimized sample pretreatment methods and standard curve config-uration,the correlation coefficient of compound are higher than 0.999,except for 2,4-dimethylaniline and p-Nitroaniline cor-relation coefficients are greater than 0.995.The detection limits of 12 aniline compounds were 1~4 μg/kg,the relative stand-ard deviations of low,medium,and high blank spiked samples were 1.5%~7.3%,and the recoveries were 76.2%~110%.The method has clear conditions,simple operation,and can improve the accuracy and efficiency of soil sample detection.

liquid chromatography-triple quadrupole mass spectrometrysoilaniline compoundultrasonic extraction

王思思、蒋建勇、李昕芯、丁萌萌、常淼、邹本东

展开 >

北京市海淀区环境监测站,北京 100089

北京市生态环境监测中心,北京 100048

液相色谱-三重四极杆质谱法 土壤 苯胺类化合物 超声萃取

2024

干旱环境监测
新疆环境监测总站

干旱环境监测

影响因子:0.619
ISSN:1007-1504
年,卷(期):2024.38(3)