Electron Impact Spectra of Several Aromatic Systems
In the process of investigation of several commercial preparations and formulations of pesticides and pesticide related compounds for contaminants this laboratory observed interesting evidence of ortho-para substituent effects in aryl systems. The subStituent of interest among these compounds is chlorine. The effect of the ortho-para aryl substituent was observed in the mass spectrometric fragmentation patterns. The compounds examined were phenyl ether, octach10rodiphenyl ether, 2,7-dichlorodibenzo-p-dioxin, 2,3,7,8-tetrach10rodibenzo-p-dioxin, octachlorodibenzofuran, octachlorodibenzo-p-dioxin and dibenzofuran.
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