0000000000172051

AUTHOR

Philip D. P. Taylor

showing 3 related works from this author

The International Measurement Evaluation Programme (IMEP) IMEP-6: "Trace elements in water"

1998

The sixth round of the International Measurement Evaluation Programme (IMEP) is presented. The programme offers reference values, established by primary methods of measurement, against which participating laboratories can evaluate their performance. The degree of comparability is thus established against the most objective references available at present. In IMEP-6, reference values for total concentrations of 14 trace elements in a synthetic and a natural water were established mainly by isotope dilution mass spectrometry (IDMS). For the majority of the measurands, results traceable to the international system of units (SI) and having expanded uncertainties, U (k=2), of 2% could be establi…

Traceabilitybusiness.industryGeneral Chemical EngineeringComparabilityGeneral ChemistryTransport engineeringCertified reference materialsEnvironmental chemistryEnvironmental scienceInternational System of UnitsSafety Risk Reliability and QualitybusinessInstrumentationQuality assuranceReliability (statistics)TRACE (psycholinguistics)AccreditationAccreditation and Quality Assurance
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Certification of a 41Ca dose material for use in human studies (IRMM-3703) and a corresponding set of isotope reference materials for 41Ca measuremen…

2005

Abstract The long-living radioisotope 41Ca could overcome current limitations in assessing the impact of interventions on bone health in controlled human studies. Changes in bone Ca metabolism can be identified directly via the induced changes in 41Ca excretion from 41Ca-labelled bones via the n(41Ca)/n(40Ca) ratio in urine. A 41Ca dose material (IRMM-3703), for use in human studies, was produced by IRMM within the EC funded project OSTEODIET. The 41Ca base material was purified and the purified solution is certified for both isotopic composition and amount content by isotope dilution mass spectrometry. The 44Ca-enriched isotope reference material, IM-6009, was used as spike and the natural…

Nuclear and High Energy PhysicsHuman studiesIsotopeChemistryAnalytical chemistryGravimetric analysisThermal ionizationIsotope dilutionMass spectrometryInstrumentationBone healthAccelerator mass spectrometryNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms
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Producing SI-traceable reference values for Cd, Cr and Pb amount contents in polyethylene samples from the Polymer Elemental Reference Material (PERM…

2000

The present paper describes the certification of the amount content of Cd, Cr and Pb in two different polyethylene materials within the third phase of the Polyethylene Elemental Reference Material (PERM) project. The analytical procedure to establish the reference values for Cd, Cr and Pb amount contents in these materials is based on isotope dilution mass spectrometry used as a primary method of measurement. Cd and Pb were measured with inductively coupled plasma-mass spectrometry and Cr with positive thermal ionization-mass spectrometry. The decomposition of the polymer matrix was carried out using a high pressure asher. Reference values for amount content, traceable to the SI-system, hav…

Accuracy and precisionGeneral Chemical EngineeringAnalytical chemistrychemistry.chemical_elementGeneral ChemistryIsotope dilutionPolyethyleneMass spectrometryMatrix (chemical analysis)Chromiumchemistry.chemical_compoundThird phasechemistrySafety Risk Reliability and QualityInstrumentationInductively coupled plasma mass spectrometryAccreditation and Quality Assurance
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