Titlebook: Gas Chromatography of Steroids in Biological Fluids; Proceedings of theWo Mortimer B. Lipsett Conference proceedings 1965 Plenum Press 1965

Presbycusis

Gas Chromatographic Method for the Determination of Testosterone in Human Urineetermination of testosterone in plasma and urine. Recently, we have devised a GLC method for analysis of testosterone glucuronide in urine and have utilized it as an ancillary test for the study of normal gonadal function and in patients with various endocrinopathies (1, 2).

混合物

Estimation of Testosterone in Blood by Gas-Liquid Chromatographyeen developed over the past few years for the assay of testosterone in human plasma. Finkelstein et al. (2) converted testosterone to estradiol, which was then measured fluorometrically. Several laboratories (3, 4) have used this method for testosterone assays in normal males and females and in dise

ILEUM

The Estimation of Plasma Androgens by Gas-Liquid Chromatographyed on the enzymatic conversion to estradiol of testosterone isolated by paper chromatography. The estradiol was estimated by fluorometry. Double isotope derivative techniques using either H-acetic anhydride (2) or S-thiosemicarbazide (3) have been described. Although remarkable in their sensitivity

富足女人

抵押贷款

Gas Chromatography of Cortols and Cortolonesxtracts of urine (1). This amount is about two-thirds of the quantity of hormone which is excreted as THE and THF, the metabolites most commonly measuredo The absence of chromophoric groups in ring A and of α-ketolic function in the side chain have made the estimation of cortols and cortolones by th

Arteriography

Urinary Corticoids by Gas Chromatography minimum of time and effort. We have not expected GLC to do this alone. Our aim has been to utilize preliminary solvent partition extraction; column, paper, or TLC; and GLC for isolation and quantitation of urinary steroids. Our approach has been to analyze the steroids as the free alcohols or keton

易于出错

A Specific Method for the Gas Chromatographic Determination of Aldosterone and Adrenocortical Steriormal instability of corticosteroids, and their derivatives which have been studied so far, made it seem unlikely that ester derivatives (acetate, formats, 5-dinitrobenzoates) would survive GLC. In view of the results obtained for steroids of the 21,17α-dihydroxy-20-oxo series, by masking the active

FAWN

Analysis of Aldosterone in Urine by Double Isotope Dilution and Gas-Liquid Chromatographyovided by prior derivative formation as the gamma lactone (2, 3) and as the 18,21-diacetate (3, 4) Elimination of the 18 acetate group was found by Kliman and Foster (3) using 2%, 6 ft SE-30 columns, but not by Wotiz, Naukarinen and Carr who used 3%, 2-4 ft SE-30 columns (4). The application of GLC

音乐学者

Measurement of Urinary Steroids by Gas Chromatography. 3α, 17-Dihydroxypregnane-20-One and C21 Triol 5-pregnene-3β, 17,20α-triol (.∆PT) and several isomeric ∆.-pregnenetriols in partially purified urinary extracts. Elevated levels of these compounds are frequently associated with hyperactivity of the adrenal cortex. They are difficult to estimate by the alternative techniques such as measurement o

营养