Bednarczyk L R, Matusiak W
J Anal Toxicol. 1982 Sep-Oct;6(5):260-1. doi: 10.1093/jat/6.5.260.
An arsenic death was investigated six and one half years after the demise. Analysis of tissue embedded in paraffin blocks demonstrated toxic concentrations. Spectrophotometry was employed with the use of a hydride generator to provide specificity and sensitivity to less than 0.05 microgram.