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- W2394871164 abstract "The simultaneous quantification of a steroid hormones panel provides more clinical information than a single steroid assay. Traditionally, steroids have been quantified with immunoassays which are characterized by high rate of positive results. Aim of this work, was to develop a TurboFlow-LC-MS/MS method for the simultaneous quantification of 17-hydroxyprogesterone, androstenedione, cortisol and testosterone in serum.To 100μL of serum, 100μL of internal standard solution in methanol were added; after centrifugation the supernatant was injected in the TurboFlow for further purification. Steroids were determined using a TSQ Vantage operating with an atmospheric pressure chemical ionization source. Method was fully validated and results compared with immunoassay methods.Limit of quantification ranged from 0.02ng/mL to 1ng/mL. The precision was lower than 11% and accuracy ranged from 93.5 to 121.6%. The correlation was acceptable for all analytes except for low levels of testosterone. However, the Bland-Altman plots display a positive bias for androstenedione and 17-hydroxyprogesterone, and a negative bias for cortisol and testosterone.TurboFlow analysis provides a simple and effective clean-up procedure minimizing the interference of the matrix. The presented method is selective, precise, and sensitive being suitable in a clinical laboratory." @default.
- W2394871164 created "2016-06-24" @default.
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- W2394871164 date "2016-09-01" @default.
- W2394871164 modified "2023-09-23" @default.
- W2394871164 title "Simultaneous quantification of 17-hydroxyprogesterone, androstenedione, testosterone and cortisol in human serum by LC-MS/MS using TurboFlow online sample extraction" @default.
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- W2394871164 doi "https://doi.org/10.1016/j.clinbiochem.2016.05.012" @default.
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