Online solid-phase extraction liquid chromatography–mass spectrometry of hair cortisol using a surrogate analyte
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DOI: 10.1007/s11696-018-0560-1
Abstract: Online SPE LC–MS with 13C3-cortisol as a surrogate analyte was developed, validated and applied for obtaining hair cortisol levels of 114 healthy volunteers. The first 3 cm from a posterior vertex position were analyzed as three… read more here.
Keywords: surrogate analyte; cortisol; hair cortisol; solid phase ... See more keywords
Accurate quantification of PGE2 in the polyposis in rat colon (Pirc) model by surrogate analyte‐based UPLC–MS/MS
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DOI: 10.1016/j.jpba.2017.07.025
Abstract: HighlightsThe colon PGE2 of normal (wild type) rat and Pirc rat (an Apc‐mutant rat) were firstly accurately determined by specific and sensitive UPLC–MS/MS.PGE2 was confirmed to promote Pirc rat colon polyps.An optimized mobile phase (0.1%… read more here.
Keywords: surrogate analyte; pirc; pge2; colon ... See more keywords