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ESTIMATION OF THE AMOUNT OF PIGMENT PRESENT IN HUMAN HAIR
Author(s) -
LEA A. J.
Publication year - 1954
Publication title -
annals of human genetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.537
H-Index - 77
eISSN - 1469-1809
pISSN - 0003-4800
DOI - 10.1111/j.1469-1809.1954.tb01268.x
Subject(s) - blank , pigment , hair shaft , urea , scale (ratio) , chemistry , biological system , biology , biochemistry , materials science , geography , microbiology and biotechnology , organic chemistry , hair follicle , cartography , composite material
Summary A method of classifying human hair colour by determining the optical density of a hair‐urea solution is described. The reactions which occur are not understood, but it is thought that the method can be applied to large‐scale investigations without this knowledge, possibly using albino hair as a blank.