Abstract
We describe a method for the quantitative determination of cyanide and sulfide ions using specific ion electrodes in combination with Conway microdiffusion cells. The response of two types of electrodes to both ions in standard solutions is presented. The method is applicable to measurement of low to toxic concentrations of both ions in biologic specimens. Five autopsy cases with history of sudden death from noxious gases were studied using this technique, and high concentrations of sulfide ion (1.70 – 3.75 mg/L) were found in the blood samples.
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