FACTORS IN THE COLORIMETRIC ESTIMATION OF 17-KETOSTEROIDS IN URINE.

Autor: Sheath, June B.
Zdroj: Australian Journal of Experimental Biology & Medical Science; Apr1959, Vol. 37 Issue 2, p133-145, 13p
Abstrakt: The article sheds light on the factors in the colorimetric estimation of 17-ketosteroids in urine. The purpose of this investigation has been two-fold, firstly, to examine some of the methods of 17-ketosteroid estimation. Secondly, to compare results obtained by the use of a correction formula for interfering chromogens with those of a simple procedure for 17-ketosteroid determination which obviates the need for such a formula. Using the technique described, the effect of acid hydrolysis on certain 17-ketosteroids has been investigated. Known amounts of both androsterone and dehydroisoandrosterone in ethanol were added to urine both before and after acid hydrolysis.
Databáze: Complementary Index