分析测试学报2024，Vol.43Issue(6)：875-882,8.DOI:10.12452/j.fxcsxb.24020801
MIL-101(Cr)吸附/热脱附-气相色谱-质谱法检测苯系和氯代VOCs
Determination of Benzene Series and Chlorinated VOCs by MIL-101(Cr)Adsorption/Thermal Desorption-Gas Chromatography and Mass Spectrometry
摘要
Abstract
A new sampling adsorption tube with MIL-101(Cr)as the filler was constructed,which can be used in thermal desorption-gas chromatography-mass spectrometry for the quantitative detec-tion of 15 typical benzene series and chlorinated volatile organic compounds(VOCs).15 VOCs showed good linear relationship in the ranges of 0-100 ng,with the correlation coefficients(r2)above 0.99.The detection limits of 15 VOCs were 0.7-1.9 ng.The average recoveries of MIL-101(Cr)packing tubes were 86.0%-126%,91.7%-133%and 77.6%-135%at the spiked dosage of 5 ng,30 ng and 70 ng VOC target pollutant,respectively.The relative standard deviations(RSDs)were 6.6%-18%,2.9%-20%and 1.3%-20%,respectively.And the RSDs of the test stability and repeat-ability of MIL-101(Cr)packing tubes were 0.50%-14%and 0.30%-18%,respectively.MIL-101(Cr)packing adsorption tube achieves more efficient adsorption enrichment and thermal desorption of benzene series and chlorinated VOCs based on less mass filler,which helps to reduce the penetration risk of sampled gas.This study expands the practical application scenarios of MOFs materials in the field of environmental monitoring.关键词
金属有机骨架/MIL-101(Cr)/热脱附-气相色谱-质谱法/吸附管/挥发性有机物Key words
metal-organic framework/MIL-101(Cr)/thermal desorption-gas chromatography-mass spectrometry/adsorption tube/volatile organic compounds分类
化学化工引用本文复制引用
张玉,崔进,梅连瑞,史芯沂美..MIL-101(Cr)吸附/热脱附-气相色谱-质谱法检测苯系和氯代VOCs[J].分析测试学报,2024,43(6):875-882,8.基金项目
天津市市场监督管理委员会科技计划项目(2021-W02) （2021-W02）
