Search Results - "Wielgosz, Robert"

Metrological framework to support accurate, reliable, and reproducible nucleic acid measurements by Milavec, Mojca, Cleveland, Megan H., Bae, Young-Kyung, Wielgosz, Robert I., Vonsky, Maxim, Huggett, Jim F.

“…Nucleic acid analysis is used in many areas of life sciences such as medicine, food safety, and environmental monitoring. Accurate, reliable measurements of…”
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Impurity determination for hepcidin by liquid chromatography-high resolution and ion mobility mass spectrometry for the value assignment of candidate primary calibrators by Bros, Pauline, Josephs, Ralf D., Stoppacher, Norbert, Cazals, Guillaume, Lehmann, Sylvain, Hirtz, Christophe, Wielgosz, Robert I., Delatour, Vincent

“…In metrology institutes, the state-of-the-art for purity analysis of peptides/proteins mainly addresses short and unfolded peptides. Important developments are…”
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Implementing a Reference Measurement System for C-Peptide: Successes and Lessons Learned by Little, Randie R, Wielgosz, Robert I, Josephs, Ralf, Kinumi, Tomoya, Takatsu, Akiko, Li, Hongmei, Stein, Daniel, Burns, Chris

“…Assessment of endogenous insulin secretion by measuring C-peptide concentrations is widely accepted. Recent studies have shown that preservation of even small…”
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Structurally related peptide impurity identification and accurate quantification for synthetic oxytocin by liquid chromatography–high-resolution mass spectrometry by Li, Ming, Josephs, Ralf D., Daireaux, Adeline, Choteau, Tiphaine, Westwood, Steven, Martos, Gustavo, Wielgosz, Robert I., Li, Hongmei

“…Oxytocin (OXT) is an important peptide that is mainly used as a therapeutic drug to induce labor or strengthen uterine contractions, or to control bleeding…”
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The BIPM Mycotoxin Metrology Capacity Building and Knowledge Transfer Program: Accurate Characterization of a Pure Aflatoxin B 1 Material to Avoid Calibration Errors by Josephs, Ralf D, Li, Xiaomin, Li, Xiuqin, Guo, Zhen, Garrido, Bruno, Un, Ilker, Daireaux, Adeline, Choteau, Tiphaine, Martos, Gustavo, Westwood, Steven, Li, Hongmei, Wielgosz, Robert I

“…The contamination of food and feed by mycotoxins, Aflatoxin B (AfB ) being one of the most prominent examples, is of imminent concern to many countries…”
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Identification and accurate quantification of structurally related peptide impurities in synthetic human C-peptide by liquid chromatography–high resolution mass spectrometry by Li, Ming, Josephs, Ralf D., Daireaux, Adeline, Choteau, Tiphaine, Westwood, Steven, Wielgosz, Robert I., Li, Hongmei

“…Peptides are an increasingly important group of biomarkers and pharmaceuticals. The accurate purity characterization of peptide calibrators is critical for the…”
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Second harmonic generation on crystalline organic nanoclusters under extreme nanoconfinement in functionalized silica–benzil composites by El Karout, Houda, Shchur, Yaroslav, Andrushchak, Anatoliy, Sahraoui, Bouchta, Wielgosz, Robert, Kityk, Olha, Jędryka, Jarosław, Slyvka, Yurii, Kityk, Andriy V.

“…We demonstrate a series of organic–inorganic nanocomposite materials combining the mesoporous silica ( PS ) and benzil ( BZL ) nanocrystals embedded into its…”
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Ozone Cross-Section Measurement by Gas Phase Titration by Viallon, Joële, Moussay, Philippe, Flores, Edgar, Wielgosz, Robert I

“…Elevated values of ground-level ozone damage health, vegetation, and building materials and are the subject of air quality regulations. Levels are monitored by…”
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An SI-traceable reference material for virus-like particles by Briones, Andrea, Martos, Gustavo, Bedu, Magali, Choteau, Tiphaine, Josephs, Ralf D., Wielgosz, Robert I., Ryadnov, Maxim G.

“…A reference material for virus-like particles traceable to the International System of Units (Système International d'Unités – the SI) is reported. The…”
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Accurate Fourier Transform Infrared (FT-IR) Spectroscopy Measurements of Nitrogen Dioxide (NO2) and Nitric Acid (HNO3) Calibrated with Synthetic Spectra by Flores, Edgar, Viallon, Joële, Moussay, Philippe, Wielgosz, Robert Ian

“…A novel method for determining the accuracy of laboratory-based measurements of nitrogen dioxide (NO2) and nitric acid (HNO3) mole fractions using Fourier…”
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The BIPM Mycotoxin Metrology Capacity Building and Knowledge Transfer Program: Accurate Characterization of a Pure Aflatoxin B1 Material to Avoid Calibration Errors by Josephs, Ralf D, Li, Xiaomin, Li, Xiuqin, Guo, Zhen, Garrido, Bruno, Un, Ilker, Daireaux, Adeline, Choteau, Tiphaine, Martos, Gustavo, Westwood, Steven, Li, Hongmei, Wielgosz, Robert I

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Simultaneous determination of various cardiac glycosides by liquid chromatography–hybrid mass spectrometry for the purity assessment of the therapeutic monitored drug digoxin by Josephs, Ralf Dieter, Daireaux, Adeline, Westwood, Steven, Wielgosz, Robert Ian

“…A high performance liquid chromatography–hybrid tandem mass spectrometry (LC–MS n ) method utilising electrospray ionisation has been developed and implemented…”
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Mass Balance Method for the SI Value Assignment of the Purity of Organic Compounds by Westwood, Steven, Choteau, Tiphaine, Daireaux, Adeline, Josephs, Ralf Dieter, Wielgosz, Robert Ian

“…A mass balance method is described for determining the mass fraction of the main component of a high purity organic material. The resulting assigned value is…”
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Report of the CCU/CCQM Workshop on “The Metrology of Quantities Which Can Be Counted” by Brown, Richard J. C., Güttler, Bernd, Neyezhmakov, Pavel, Stock, Michael, Wielgosz, Robert I., Kück, Stefan, Vasilatou, Konstantina

“…This article provides a report of the recent workshop on “The metrology of quantities which can be counted” organised jointly by the International Committee…”
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Calibration Strategies for FT-IR and Other Isotope Ratio Infrared Spectrometer Instruments for Accurate δ13C and δ18O Measurements of CO2 in Air by Flores, Edgar, Viallon, Joële, Moussay, Philippe, Griffith, David W. T, Wielgosz, Robert Ian

“…This paper describes calibration strategies in laboratory conditions that can be applied to ensure accurate measurements of the isotopic composition of the CO2…”
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Implementing metrological traceability of C-reactive protein measurements: consensus summary from the Joint Committee for Traceability in Laboratory Medicine Workshop by Miller, W Greg, Panteghini, Mauro, Wielgosz, Robert

“…The Joint Committee for Traceability in Laboratory Medicine (JCTLM) currently lists the secondary commutable certified reference material (CRM) ERM DA-474/IFCC…”
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International Activities in Metrology in Chemistry by Robert I. Wielgosz, Robert Kaarls

“…In today's economy goods and information are being exchanged globally, international travel is commonplace as is the cross-boarder transport of livestock and…”
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Reliable measurement of multiplexed biomarker panel of RNA transcripts by Wielgosz, Robert

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State-of-the-art and trends for the SI traceable value assignment of the purity of peptides using the model compound angiotensin I by Josephs, Ralf D., Stoppacher, Norbert, Daireaux, Adeline, Choteau, Tiphaine, Lippa, Katrice A., Phinney, Karen W., Westwood, Steven, Wielgosz, Robert I.

“…Accurate diagnosis, monitoring and treatment are cornerstones of a healthcare system and require reliable measurements. The traceability of measurement results…”
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High-Order Harmonics and Photoluminescence in Azo-Phenylthiophene Derivatives by Taboukhat, Said, Aamoum, Aouatif, Ayadi, Awatef, Shili, Afef, Zawadzka, Anna, Waszkowska, Karolina, Płóciennik, Przemyslaw, El-Ghayoury, Abdelkrim, Zouari, Nabil, Wielgosz, Robert, Andrushchak, Anatoliy, Guichaoua, Dominique, Migalska-Zalas, Anna, Sahraoui, Bouchta

“…This paper presents the linear and nonlinear optical (NLO) properties of two donor–acceptor organic materials, namely,…”
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