An isotope dilution-liquid chromatography-tandem mass spectrometry-based candidate reference measurement procedure for the quantification of voriconazole in human serum and plasmaMarie Kubicovaon January 23, 2026 at 11:00 am

Clin Chem Lab Med. 2026 Jan 26. doi: 10.1515/cclm-2025-1371. Online ahead of print. ABSTRACT OBJECTIVES: Voriconazole is an antifungal agent measured in serum and plasma for therapeutic drug monitoring. This study aimed to develop a robust isotope-dilution liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS) reference measurement procedure (RMP) to ensure accurate and reliable quantification in compliance with … Read more

Comparison of six serum analyte workflows using routine liquid chromatography-tandem mass spectrometry methods at multiple laboratories with the Cobas i 601 analyzer, an automated mass spectrometry systemPieter Vermeerschon January 23, 2026 at 11:00 am

Clin Chem Lab Med. 2026 Jan 26. doi: 10.1515/cclm-2025-0994. Online ahead of print. ABSTRACT OBJECTIVES: Liquid chromatography-tandem mass spectrometry (LC-MS/MS) offers substantial analytical advantages over traditional immunoassay methods, including greater specificity and robustness. Conventional LC-MS/MS methods are labor-intensive, requiring highly trained, dedicated laboratory staff. The Cobas® i 601 analyzer (Roche Diagnostics International Ltd., Rotkreuz, Switzerland) … Read more

An isotope dilution-liquid chromatography tandem mass spectrometry-based candidate reference measurement procedure for the quantification of dehydroepiandrosterone in human serum and plasmaLea Lewinon January 21, 2026 at 11:00 am

Clin Chem Lab Med. 2026 Jan 22. doi: 10.1515/cclm-2025-1156. Online ahead of print. ABSTRACT OBJECTIVES: Dehydroepiandrosterone (DHEA) is a steroid prohormone and important precursor for estrogen and testosterone biosynthesis. For differential diagnosis of sexual development disorders (e.g., polycystic ovary syndrome, congenital adrenal hyperplasia), accurate measurement of DHEA in clinical testing is essential. To address that … Read more

Science, Quality and Value of Laboratory MedicineMario Plebanion January 21, 2026 at 11:00 am

Clin Chem Lab Med. 2026 Jan 22. doi: 10.1515/cclm-2026-0041. Online ahead of print. ABSTRACT The Meeting on Science, Quality and Value of Laboratory Medicine was held on 11 December 2025 in Padua, immediately preceding the 7th European Federation of Clinical Chemistry and Laboratory Medicine (EFLM) Conference on the Preanalytical Phase. For organizational reasons, the meeting … Read more

Establishing Reference Values in Healthy Participants for the Cardiac Troponin T High-Sensitivity Gen 6 Assay: REF-TSIX Global Reference Study

Clin Chem. 2026 Jan 21:hvag011. doi: 10.1093/clinchem/hvag011. Online ahead of print. ABSTRACT BACKGROUND: Measurement of cardiac troponin (cTn) using high-sensitivity assays is recommended for the diagnosis of myocardial infarction. We determined sex-specific and uniform 99th percentile upper reference limits (URLs) using the new Elecsys® Troponin T high-sensitivity Gen 6 assay in a global, healthy reference … Read more

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