Lankes, Ulrich <br/><br/>
Differential extraction of endogenous and exogenous 25-OH-vitamin D from serum makes the accurate quantification in liquid chromatography-tandem mass spectrometry assays challenging.  [electronic resource] 

 -  Annals of clinical biochemistry  Jan 2015 
 - 151-60 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>1758-1001 
<br/><br/><label>Standard No.: </label>10.1177/0004563214533316  doi 
<br/><br/><label>Subjects--Topical Terms: </label><br/>25-Hydroxyvitamin D 2--blood<br/>Bias<br/>Calcifediol--blood<br/>Case-Control Studies<br/>Chromatography, Liquid--standards<br/>Hemochromatosis--blood<br/>Hexanes<br/>Humans<br/>Immunoassay<br/>Liquid-Liquid Extraction--standards<br/>Methanol<br/>Reference Standards<br/>Sensitivity and Specificity<br/>Solvents<br/>Tandem Mass Spectrometry--standards