Factors That Contribute to Assay Variation in Quantitative Analysis of Sex Steroid Hormones Using Liquid and Gas Chromatography-Mass Spectrometry

Autor/inn/en	Xu, Xia; Veenstra, Timothy D.
Titel	Factors That Contribute to Assay Variation in Quantitative Analysis of Sex Steroid Hormones Using Liquid and Gas Chromatography-Mass Spectrometry
Quelle	In: Journal of Chemical Education, 89 (2012) 2, S.230-233 (4 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/ed1009442
Schlagwörter	Chemistry; Biochemistry; Methods; Influences; Instrumentation; Measurement Equipment; Data Analysis + Suchen Sie Ihr Suchwort? Chemie; Biochemie; Method; Methode; Influence; Einfluss; Einflussfaktor; Messinstrument; Auswertung
Abstract	The list of physiological events in which sex steroids play a role continues to increase. To decipher the roles that sex steroids play in any condition requires high quality cohorts of samples and assays that provide highly accurate quantitative measures. Liquid and gas chromatography coupled with mass spectrometry (LC-MS and GC-MS) have dramatically increased the capability to quantitatively measure sex steroids in complex biologic samples. Although it is important to optimize and calibrate the LC-MS and GC-MS steps, other areas such as sample preparation, molecular derivatization, and data analysis need to be carefully considered to minimize assay variation. The specific steps necessary for an effective quantitative assay are highly dependent on the type of sex steroid(s) being measured and the analytical steps described in this article will not be pertinent to every analyte. In this article, however, many of the steps necessary to develop an effective assay for sex steroids will be reviewed with a focus on areas that contribute to variation within the final quantitative results. The development of robust quantitative assays with high precision, accuracy, and reproducibility will continue to contribute to our understanding of the specific roles sex steroids play in diseases such as cancer. (Contains 1 figure and 1 scheme.) (As Provided).
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Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2017/4/10