Pankhurst C A, Pate B D
J Forensic Sci. 1979 Apr;24(2):397-408.
Absorption of phosphate into single human and animal hair shafts has been studied by means of 32P radiotracer techniques. Nondestructive radioassay permitted repetitive experiments on the same hair specimen. Phosphate concentration patterns were shown to be complementary to those for zinc absorption and sometimes to exhibit prominent concentration peaks extending over regions of the shaft 10 to 20 mm in length. Appearance of such peaks was shown to be favored by pH decreasing below 7 but not by migration of phosphate along the hair shaft, which was unimportant.
利用³²P放射性示踪技术研究了磷酸盐在单根人类和动物毛发中的吸收情况。非破坏性放射性测定允许对同一毛发样本进行重复实验。结果表明，磷酸盐浓度模式与锌吸收的模式互补，有时在毛发轴长10至20毫米的区域会出现明显的浓度峰值。研究表明，pH值降至7以下有利于此类峰值的出现，但磷酸盐沿毛发轴的迁移对此影响不大。
