GC-MS/MS Analysis of Benzo(a)pyrene by Ion Trap Tandem Mass Spectrometry

Bulletin of the Korean chemical society

Sang Hak Lee¹  Jae Jak Nam¹ 

关键词: PAHs;    Benzo(a)pyrene;    Ion trap mass spectrometry;    CID;    MS/MS;   

DOI  :  

学科分类：化学（综合）

来源: Korean Chemical Society

【 摘 要 】

The mass spectrometry using an ion trap tandem mass spectrometer has been investigated to find optimum conditions for the analysis of benzo(a)pyrene (3,4-benzpyrene). The applicability to a real soil sample was also investigated to verify the usefulness of the MS/MS (or collision induced dissociation, CID) analysis. The optimum CID condition was 1.5 and 0.45 for the RF excitation voltage and the q value, respectively. For comparison, CID and EI were applied to the analysis of a soil sample. CID analysis was more sensitive than EI analysis of the soil sample. The limit of detection (LOD) of benzo(a)pyrene was 3.18 ng mL^-1 and 0.85 ng mL,^-1 for EI and MS/MS analysis, respectively. The precision at the soil sample for EI and CID showed relative standard deviations of 6.1% and 4.1%, respectively, and the concentrations were 168 Ф kg^-1 and 162 Ф kg^-1 , respectively.

【 授权许可】

Unknown