Objective A method based on comprehensive two dimensional gas chromatography-tandem mass spectrometry (GC×GC-MS/MS) was developed for the determination of polychlorinated dibenzo-p-dioxins (PCDD/Fs). Methods Bovine serum were extracted by accelerated solvent extraction and purified by fluid management system. Then the target congeners were analysed by comprehensive two dimensional gas chromatography-tandem mass spectrometry with DB-5MSand BPX-50. Results The calibration curves of 17th target compounds showed a good linearity (R2>0.99), the limits of detection of the method were 0.1~0.8 pg/g. Conclusion With high selectivity and sensitivity, the method can apply to analyze the PCDD/Fs in bovine serum.
标题:血清中二噁英类物质的同位素稀释-全二维气 相色谱-串联质谱法研究
英文标题:Investigation of polychlorinated dibenzo-p-dioxins in serum by isotope dilution-comprehensive two dimensional gas chromatography-tandem mass spectrometry
中文关键词:全二维气相色谱-串联质谱法,同位素稀释法,多氯代二苯并二噁英和多氯代二苯并呋喃,
英文关键词:comprehensive two dimensional gas chromatography-tandem mass spectrometry,isotope dilution,polychlorinated dibenzo-p-dioxins,