Results 181 to 190 of about 739,620 (266)

Three New Calcium Formate Reference Materials for δ13C Measurements and a Redetermination of the R(13C/12C) Ratio for VPDB Based on Proton Nuclear Magnetic Resonance Measurements

Rapid Communications in Mass Spectrometry, Volume 40, Issue 18, 30 September 2026.
ABSTRACT Rationale Isotope ratio mass spectrometry (IRMS) and proton nuclear magnetic resonance (1H NMR) spectroscopy are independent techniques for determining the isotope ratio R(13C/12C) in organic compounds. However, the lack of suitable reference materials has limited intercalibration of results from these methods.
David W. Hoffman, Cornelia Rasmussen, Arndt Schimmelmann, Lauren T. Reid, Haiping Qi, Tyler B. Coplen   +5 more
wiley   +1 more source

Requirements for the precision and reproducibility in the efficacy testing of chemical disinfection procedures. [PDF]

GMS Hyg Infect Control
Roesch KM, Rausch M, Droop F, Exner M, Ilschner C, Kramer A, Selhorst T, Suchomel M, Mutters NT, Gebel J.   +9 more
europepmc   +1 more source

Development and Implementation of an Internal Quality Control and External Quality Assessment Information System for a Regional Medical Laboratory Center: Pilot Design and Implementation Study. [PDF]

JMIR Form Res
Chen D, Mo H, Zhang Y, Qin J, Zhang L, Jiang C, Li F, Zhang X, Ou T.   +8 more
europepmc   +1 more source

Dataset of illicit drug consumption during and post COVID-19 through wastewater in a city of Chile. [PDF]

Data Brief
Reis AS, Corthorn F, Navarro P, Assmann P, Suazo Osses E, Hepp MI, Galbán-Malagón C.   +6 more
europepmc   +1 more source

Readiness of the <i>in vitro</i> alveolar macrophage assay: an interlaboratory comparison using 12 blinded particles. [PDF]

Front Toxicol
Thá E, Vennemann A, Marani V, Gräb O, Verlohner A, Ma-Hock L, Spyridonov IM, Weber P, Chary A, Serchi T, Landsiedel R, Wiemann M.   +11 more
europepmc   +1 more source

Diagnostic performance of panfungal PCR on tissue specimens for the diagnosis of invasive fungal diseases: a systematic review and meta-analysis of the Fungal PCR Initiative (FPCRI). [PDF]

J Clin Microbiol
Filippidis P, El Khoury C, Cruciani M, Alanio A, Barnes RA, Bialek R, Buitrago MJ, Donnelly JP, Grolimund R, Hagen F, Halliday C, Johnson E, Lengerova M, Loeffler J, Melchers WJG, Mengoli C, Novak-Frazer L, Opota O, Paholcsek M, Patterson TF, Rautemaa-Richardson R, Rickerts V, Ruhnke M, Tschiderer L, Cavin-Trombert A, Willinger B, White PL, Lamoth F.   +27 more
europepmc   +1 more source

Reliable Photoluminescence Quantum Yields – New Reference Materials and Interlaboratory Comparisons

The rational design and choice of molecular and nanoscale reporters, the comparison of different emitter classes, and photophysical and mechanistic studies require quantitative photoluminescence measurements and the reliable determination of the key ...
Resch-Genger, Ute
core  

Interlaboratory Evaluation of Multiplex Autoantibody Assay Performance in the Islet Autoantibody Standardization Program 2024 Workshop. [PDF]

Diabetes Care
Marzinotto I, Pittman DL, Achenbach P, Akolkar B, Wasserfall CH, Lampasona V, Long AE.   +6 more
europepmc   +1 more source

First Isolation of Bovine Coronavirus From Yanbian, China, and Analytical Validation of a SYBR Green I RT-qPCR Panel for Calf Diarrhea Viruses. [PDF]

Transbound Emerg Dis
Zhang S, Ma H, Zhao J, Yu K, Hao J, Yu H, Jin J, Cao S, Ji X, Xue S, Li Q, Xu Z, Ji S, Li C, Sun Z, Xie J, Du R, Gao X.   +17 more
europepmc   +1 more source

Report on the interlaboratory validation trial of DIN 38407-53

REPORT ON THE INTERLABORATORY VALIDATION TRIAL OF DIN 38407-53 Report on the interlaboratory validation trial of DIN 38407-53 / Dorgerloh, Ute (Rights reserved) (-
Sauer, Andreas, Becker, Roland, Dorgerloh, Ute   +2 more
core