GSF,FORSCHUNGSZENTRUM UMWELT & GESUNDHEIT,INST OKOL CHEM,D-85764 OBSCHLEISSHEIM,GERMANY; CHINESE ACAD SCI,DALIAN INST CHEM PHYS,NATL CHROMATOG R&A CTR,DALIAN 116011,PEOPLES R CHINA; CHINESE ACAD SCI,INST HYDROBIOL,STATE KEY LAB FRESHWATER ECOL & BIOTECHNOL,WUHAN 430072,PEOPLES R CHINA
A software has been developed for the peak recognition of 136 polychlorinated dibenzo-p-dioxins (PCDD) and polychlorinated dibenzofurans (PCDF) after high resolution gas chromatography coupled with mass spectrometry (HRGC/HRMS). Based on the retention times of C-13 labelled 2,3,7,8-substituted PCDD/F internal standards, the retention times of all PCDD and PCDF can be calibrated automatically and accurately. Therefore, it is very convenient to identify the peaks by comparing the retention of samples and the calibrated retention times of their chromatograms. Hence, this approach is very significant because it is impossible to obtain always a standard chromatogram and PCDD/F analysis are very expensive and time consuming. The calibration results can be transferred to Excel for calculation. The approach is a first step to store costly and environmentally relevant data for future application.