title: A discrete multichanneal procedure for the chemical determination of urinary estrogens during pregnancy.
abstract: A colorimetric method, based on the Kober reaction, was adapted for the determination of urinary estrogens during pregnancy. The method yields final volumes for direct measurements by a multichannel computer-controlled photometer. The speed of the analysis was increased so that 100 samples can easily be completed by one laboratory technician as triplicate analyses during one working day. A satisfactory accuracy and precision of the method were also achieved. The values were determined using urine samples from 1097 apparently healthy pregnant women.
mesh_terms: D003124:Colorimetry / Q000379:methods*; D003201:Computers; D004967:Estrogens / Q000652:urine*; D005260:Female; D006801:Humans; D011247:Pregnancy
chemical_list: D004967:Estrogens