Abstract
A mixture of hydroxypolychlorodibenzofurans was isolated from technical pentachlorophenol. The alkyl ethers were prepared, and analyzed by fused silica capillary column gas chromatography electron capture negative ion chemical ionization mass spectrometry. The appearance of intense molecular ion peaks for the alkyl ethers apparently depends on the ring position of alkoxy substitution. Loss of chlorine atoms from the ring, followed by protonation of the resultant anion as the alkyl group is eliminated, is postulated on the basis of deuterium labeling experlments. Evidence is also presented for the presence of a hydroxyheptachlorodibenzodioxin in technical pentachlorophenol.
Published Version
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