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|Title:||Improved Quantification of Prostaglandins in Biological Samples by Optimizing Simultaneously the Relationship Eicosanoid/Internal-Standard and Using Liquid Chromatography Tandem Mass Spectrometry|
|Authors:||Araujo, Pedro;Bjørkkjær, Tormod;Berstad, Arnold;Frøyland, Livar|
|Keywords:||VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Gasteroenterologi: 773;VDP::Medisinske Fag: 700::Klinisk medisinske fag: 750::Reumatologi: 759|
|Description:||Although a wide variety of articles on quantification of eicosanoids by using internal standards are published every year, little has been done on how much internal standard should be added. This article demonstrates that the application of experimental design enables estimating the interaction eicosanoid/internal-standard and to select confidently an optimal amount of internal standard and a response factor (RF) for the analysis of eicosanoids in a high number of samples, where the amount of sample is limited and the unknown levels of eicosanoids are spanned in a wide range of concentrations. The results revealed that the interaction eicosanoid/internal-standard is an important factor that affects the validity of the RF and subsequently the accuracy of the analysis.|
|Other Identifiers:||Prostaglandins, Leukotrienes and Essential Fatty Acids 77(1): 9-13|
|Appears in Collections:||Faculty of Medicine and Dentistry|
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