宣宇 1孙楠 2傅得锋 1郑一平 2莫卫民 2徐晟捷1
作者信息
- 1. 浙江工业大学化学工程与材料学院,浙江杭州310014
- 2. 浙江省公安厅物证鉴定中心,浙江杭州310009
- 折叠
摘要
Abstract
A selective and sensitive LC/APCI-MS/MS was optimized for quantitative analysis of octahydro-1,3,5,7 tetranitro-1,3,5,7-tetrazocine( HMX), hexahydro-1 , 3 , 5-trinitro-l, 3 , 5-triazine (RDX), pentaerythrite tetranitrate (PETN), tetryl(CE), nitroguanidine(NQ), 2 ,4, 6-trinitrotolueneCTNT) in sandy loam soils. Accelerated solvent extraction (ASE) and Gel permetion chromatography(GPC) were used as extraction and purification methods, re spectively. Sandy loam soils was spiked with explosives, extracted by ASE employed acetone as extraction solvent, purified by GPC used ethyl acetate: cyclohexane (1 : 1) as mobile phase and the forerun time was 500s, the main faction was 1520s. The LC/MS analysis employed lmmol/L formic acid added to the mobile phase to facilitate for mation of formic adduct ions[M+HCOO] . The method detection limits(MDLs) for HMX, RDX, PETN, CE, NQ and TNT were 0. 78,1. 44,1. 69 , 0. 77 ,1. 06 ,1. 72ng/mL, respectively and recovery were 49. 0% - 88. 4% , RSD% were 3. 5% -10. 3%. The method proved effective and could be applied in the system examination and quantitative analysis of high-explosives in exploded residues and environmental samples.关键词
分析化学/炸药/粉尘/LC/APCI/MS/ASE/GPCKey words
analytical chemistry/explosives/ powders/ liquid chromatography(LC)/ atmospheric pressure chemieal i-onization( APCI)/ mass spectrometry ( MS) / accelerated solvent extraction (ASE)/ gel permeation chromatography (GPC)分类
军事科技
