Andrew J. Walder - Concepedia

Concepedia

Author

Andrew J. Walder

IS Instruments (United Kingdom)

Also Known As

A Walder, A.J. Walder, Andrew J. Walder

12

Publications

1.2K

Citations

10

H-Index

32

Concepts

All Affiliations

IS Instruments (United Kingdom)

AJ

About

Andrew J. Walder is an author at IS Instruments (United Kingdom) specializing in mass spectrometry, engineering, and instrumentation.

Top Concepts

#	Concept	H-Index	Publications	Citations
1	Engineering	7	7	948
2	Medicine	4	4	374
3	Education	2	2	266
4	Natural Sciences	2	2	223
5	Biostatistics	1	1	62

Andrew J. Walder

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10

Publications

1.2K

Citations

10

H-Index

	Year	Citations
Communication. Isotopic ratio measurement using a double focusing magnetic sector mass analyser with an inductively coupled plasma as an ion source Andrew J. Walder, Philip A. Freedman Journal of Analytical Atomic Spectrometry Isotopic Ratio MeasurementEngineeringMeasurementEducationMagnetic Sector	1992	203
Recent developments in inductively coupled plasma magnetic sector multiple collector mass spectrometry Alex N. Halliday, Der‐Chuen Lee, John N. Christensen, International Journal of Mass Spectrometry and Ion Processes MagnetismEngineeringAnalytical InstrumentationMagnetic Resonance SpectroscopySpectroscopy	1995	190
Lead isotope ratio measurement of NIST 610 glass by laser ablation inductively coupled plasma mass spectrometry Andrew J. Walder, Ian Abell, I. Platzner, Spectrochimica Acta Part B Atomic Spectroscopy Analytical InstrumentationLaser-induced BreakdownSpectroscopyMass SpectrometryLaser Ablation	1993	161
Isotope ratio measurement of lead, neodymium and neodymium–samarium mixtures, Hafnium and Hafnium–Lutetium mixtures with a double focusing multiple collector inductively coupled plasma mass spectrometer Andrew J. Walder, I. Platzner, Philip A. Freedman Journal of Analytical Atomic Spectrometry EngineeringTrace Element GeochemistryNuclear DataLead IsotopesChemistry	1993	160
In situ hafnium isotope ratio analysis of zircon by inductively coupled plasma multiple collector mass spectrometry M.F. Thirlwall, Andrew J. Walder Chemical Geology EngineeringIsotope GeochemistryMass SpectrometryAnalytical ChemistryGeochemistry	1995	127
Validation of the analytical linearity and mass discrimination correction model exhibited by a multiple collector inductively coupled plasma mass spectrometer by means of a set of synthetic uranium isotope mixtures Philip Taylor, Paul De Bièvre, Andrew J. Walder, Journal of Analytical Atomic Spectrometry EngineeringNuclear PhysicsNuclear DataChemistrySpectrochemical Analysis	1995	112
Natural variations detected in the isotopic composition of copper: possible applications to archaeology and geochemistry N. H. Gale, A.P Woodhead, Zofia Stos‐Gale, International Journal of Mass Spectrometry Isotope AnalysisEngineeringGeochemical DataTrace Element GeochemistryNatural Variations	1999	94
High-Precision Lead Isotope Ratio Measurement by Inductively Coupled Plasma Multiple Collector Mass Spectrometry Andrew J. Walder, Naoki Furuta Analytical Sciences Isotope AnalysisAnalytical InstrumentationMeasurementNatural SciencesSpectroscopy	1993	63
Communication. Isotope ratio measurement by inductively coupled plasma multiple collector mass spectrometry incorporating a high efficiency nebulization system Andrew J. Walder, Dagmar Koller, Nicola M. Reed, Journal of Analytical Atomic Spectrometry EngineeringNuclear DataChemistryIsotope Ratio MeasurementHafnium Reference Materials	1993	62
Thorium isotope ratio measurements at high abundance sensitivity using a VG54-30®, an energy-filtered thermal ionization mass spectrometer Zenon Palacz, Philip A. Freedman, Andrew J. Walder Chemical Geology Isotope Geoscience section Isotope AnalysisRadiation DetectionIsotope GeochemistryMass SpectrometryRadioanalytical Chemistry	1992	10

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