WALDRON H A
Br J Ind Med. 1964 Oct;21(4):315-7. doi: 10.1136/oem.21.4.315.
Plasma porphyrin levels were determined in a group of 50 workers exposed to lead. The mean value obtained (0·7 μg./100 ml.) was found to be higher than that obtained from a control group (0·2 μg./100 ml.). Although urinary porphyrin levels in the lead workers were also higher than in the control group, no correlation was found between plasma porphyrin levels and urinary porphyrin levels. Chromatography of the plasma porphyrins from lead workers showed that some protoporphyrin was present in addition to the coproporphyrin found in plasma from the control group.
对一组50名接触铅的工人测定了血浆卟啉水平。所获得的平均值（0·7微克/100毫升）高于对照组（0·2微克/100毫升）。虽然铅作业工人的尿卟啉水平也高于对照组，但未发现血浆卟啉水平与尿卟啉水平之间存在相关性。对铅作业工人血浆卟啉进行色谱分析表明，除了对照组血浆中发现的粪卟啉外，还存在一些原卟啉。
