323 citations
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November 2017 in “Bioanalysis” This commentary discusses the challenges of matrix effects in LC–MS analysis and introduces the concept of a matrix effect factor using stable isotopically labeled internal standards to improve analysis reliability.
823 citations
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February 1998 in “Analytical Chemistry” Method detects finasteride in plasma at very low concentrations.
9 citations
,
November 2022 in “International Journal of Molecular Sciences” This study found that LC-MS/MS assays provided more reliable and precise steroid measurements in human serum compared to traditional immunoassays, particularly at lower concentrations.
11 citations
,
September 2020 in “Steroids” This study developed a new method using liquid chromatography-tandem mass spectrometry to measure multiple steroid hormones in hair, requiring significantly fewer strands than previous methods, with high accuracy and precision.
27 citations
,
April 2013 in “Reviews in endocrine and metabolic disorders” The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.