1. Isomer specific determination of hexachlorodioxins in technical pentachlorophenol (PCP) and its sodium salt
- Author
-
Joginder Singh, Greg P. Malis, Walter F. Miles, and Narine P. Gurprasad
- Subjects
Chemical ionization ,Environmental Engineering ,Chromatography ,Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,chemistry.chemical_element ,General Medicine ,General Chemistry ,Pollution ,Oxygen ,Pentachlorophenol ,Sodium salt ,chemistry.chemical_compound ,chemistry ,Environmental Chemistry ,Nuclear chemistry - Abstract
A newly developed approach involving oxygen negative chemical ionization was employed to achieve isomer specific analysis of all ten hexachlorodioxins (HxCDD). A group of technical pentachlorophenols (PCP) and sodium salts of pentachlorophenol (NaPCP) originating from five different manufacturers were analyzed and the levels of different isomers of hexachlorodioxins determined. 1,2,3,6,7,8-HxCDD was the most abundant isomer in all the PCPs tested with levels ranging from 0.30 ppm to 21.3 ppm. The 1,2,3,7,8,9-HxCDD isomer was also found to be present in all the PCP samples but at lower levels of 0.01 ppm to 0.71 ppm. All ten isomers of HxCDD were observed in all samples of the sodium salts of PCP, however the 1,2,3,6,7,9-/1,2,3,6,8,9-HxCDD pair was the most abundant. The isomer distribution was found to be quite consistent in samples from the same manufacturer.
- Published
- 1985
- Full Text
- View/download PDF