A new method was developed for the analysis of the volatile and semi-volatile acidic components in tobacco by gas chromatography-mass spectrometry selected ion monitoring(GC-MS,SIM)method.
本文在同时蒸馏萃取处理后,采用选择离子检测(SIM)法对烟草中主要酸性成分进行定量分析,该法可有效排除干扰,并使灵敏度提高1～2个数量级[4],并用标准样品作了回收率试验。
This paper decribes the analysis of trace thiophene in refined benzene with selected ion monitoring technology of GC/MS.
用气相色谱与质谱联用（ＧＣ／ＭＳ）的选择离子检测技术分析了纯苯中的噻吩，通过以噻吩作内标进行叠加定量，最后回归出噻吩的质量浓度为０。
Formaldehyde in food was determined by gas chromatography-mass spectrometry with selected ion monitor (GC-MS-SIM).
建立了用气相色谱质谱选择离子检测(GCMSSIM)测定食品中甲醛和次硫酸氢钠甲醛的新方法。
A new method for determination of melamine in milk powder and milk products by gas chromatography-mass spectrum with selected ion monitor(GC-MS/SIM) was established in this paper.
采用气相色谱-质谱(GC-MS)分析技术,选择离子检测法(SIM),开发出一种准确可靠、灵敏度高的测定奶粉及奶制品中三聚氰胺的新方法。
A new method for determination of formaldehyde and sodium bisulfoxylate formaldehyde in flour products by gas chromatography-mass spectrometry-selected ion monitor(GC/MS/SIM) was presented in the paper.
对提取方法和衍生化条件等进行优化,确定为超声波振荡提取30min,衍生化试剂2,4-二硝基苯肼(DNPH)避光衍生化时间为6h;衍生产物2,4-二硝基苯腙在GC-MS测定中选择离子检测(SIM)为m/z79、210。
Selected ion recording(SIR) technique was used in the GC/MS determination of phthalates(DBP and DEHP),present as environmental pollutants in human serum.
采用毛细管柱气相色谱-质谱联用法的选择离子检测(GC-MS-SIR)技术,结合有机溶剂提取,高速离心去蛋白和低温浓缩的方法测定103份健康人血清中酞酸二丁酯(di--nbutyl phthalate,DBP)和酞酸二异辛酯[di-(2-ethyl-hexyl)phthalate,DEHP]。
Capillary column gas chromatography-mass spectrometry (GC/ MS) and selected ion recording (SIR) were used to d.
方法 采用毛细管柱气相色谱-质谱联用(gas chromato-graphy-mass spectrometry,GC/MS)选择离子检测(selected ion recording,SIR)技术,结合溶剂浸泡提取的办法。
Detection of two main components of Psoralea corylifolia as additive in the cigarette by SPME-GC-MS-SIM;
固相微萃取/气-质联用/选择离子检测法检测卷烟添加剂中的补骨脂
Methods The selective ion monitoring mode(SIM) of capillary column gas chromatography-mass spectrometry(GC/MS) coupled with supersonic oscillate, organic solvent extraction and low temperature concentration techniques were used.
方法采用毛细管柱气相色谱质谱联用的选择离子检测技术(GC-MS-SIR),结合超声波振荡、有机溶剂回流提取、低温浓缩的前处理方法。
Methods The selective ion monitoring mode(SIM) of capillary column gas chromatography-mass spectrometry(GC/MS)coupled with organic solvent extraction and low temperature concentration techniques were used.
方法 采用毛细管柱气相色谱 -质谱联用 (gaschromatography massspectrometry ,GC/MS)的选择离子检测 (selectedionmonitoringmode ,SIM )技术 ,结合有机溶剂回流提取、低温浓缩的前处理方法。