Andrew J. Walder

1.2k total citations
12 papers, 990 citations indexed

About

Andrew J. Walder is a scholar working on Ecology, Global and Planetary Change and Analytical Chemistry. According to data from OpenAlex, Andrew J. Walder has authored 12 papers receiving a total of 990 indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Ecology, 5 papers in Global and Planetary Change and 5 papers in Analytical Chemistry. Recurrent topics in Andrew J. Walder's work include Isotope Analysis in Ecology (8 papers), Radioactive contamination and transfer (5 papers) and Analytical chemistry methods development (5 papers). Andrew J. Walder is often cited by papers focused on Isotope Analysis in Ecology (8 papers), Radioactive contamination and transfer (5 papers) and Analytical chemistry methods development (5 papers). Andrew J. Walder collaborates with scholars based in United Kingdom, Japan and United States. Andrew J. Walder's co-authors include Philip A. Freedman, I. Platzner, M.F. Thirlwall, Ian Abell, Naoki Furuta, Philip Taylor, Paul De Bièvre, John N. Christensen, Charles E. Jones and Der‐Chuen Lee and has published in prestigious journals such as Chemical Geology, Thin Solid Films and Spectrochimica Acta Part B Atomic Spectroscopy.

In The Last Decade

Andrew J. Walder

12 papers receiving 903 citations

Peers

Andrew J. Walder

GEOPH

ECOLO

Wen Yi United States

Ellyn S. Beary United States

Claudia Bouman Germany

J. W. Gramlich United States

W. A. Russell United States

Ernest L. Garner United States

Garret L. Hart United States

Yuchen Guo United Kingdom

Heinrich Kipphardt Germany

G. P. Russ United States

Wen Yi United States

Andrew J. Walder

348 ×1.0

GEOPH

159 ×0.6

ECOLO

112 ×0.4

159 ×0.7

128 ×0.6

Citations per year, relative to Andrew J. Walder Andrew J. Walder (= 1×) peers Wen Yi

Countries citing papers authored by Andrew J. Walder

Since Specialization

Citations

This map shows the geographic impact of Andrew J. Walder's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Andrew J. Walder with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Andrew J. Walder more than expected).

Fields of papers citing papers by Andrew J. Walder

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Andrew J. Walder. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Andrew J. Walder. The network helps show where Andrew J. Walder may publish in the future.

Co-authorship network of co-authors of Andrew J. Walder

This figure shows the co-authorship network connecting the top 25 collaborators of Andrew J. Walder. A scholar is included among the top collaborators of Andrew J. Walder based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Andrew J. Walder. Andrew J. Walder is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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12 of 12 papers shown

Gale, N. H., et al.. (1999). Natural variations detected in the isotopic composition of copper: possible applications to archaeology and geochemistry. International Journal of Mass Spectrometry. 184(1). 1–9. 76 indexed citations

Thirlwall, M.F. & Andrew J. Walder. (1995). In situ hafnium isotope ratio analysis of zircon by inductively coupled plasma multiple collector mass spectrometry. Chemical Geology. 122(1-4). 241–247. 111 indexed citations

Halliday, Alex N., Der‐Chuen Lee, John N. Christensen, et al.. (1995). Recent developments in inductively coupled plasma magnetic sector multiple collector mass spectrometry. International Journal of Mass Spectrometry and Ion Processes. 146-147. 21–33. 155 indexed citations

Taylor, Philip, et al.. (1995). 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. Journal of Analytical Atomic Spectrometry. 10(5). 395–398. 95 indexed citations

Walder, Andrew J. & Naoki Furuta. (1993). High-Precision Lead Isotope Ratio Measurement by Inductively Coupled Plasma Multiple Collector Mass Spectrometry. Analytical Sciences. 9(5). 675–680. 50 indexed citations

Walder, Andrew J., et al.. (1993). Communication. Isotope ratio measurement by inductively coupled plasma multiple collector mass spectrometry incorporating a high efficiency nebulization system. Journal of Analytical Atomic Spectrometry. 8(7). 1037–1037. 50 indexed citations

Walder, Andrew J., Ian Abell, I. Platzner, & Philip A. Freedman. (1993). Lead isotope ratio measurement of NIST 610 glass by laser ablation inductively coupled plasma mass spectrometry. Spectrochimica Acta Part B Atomic Spectroscopy. 48(3). 397–402. 137 indexed citations

Walder, Andrew J. & Naoki Furuta. (1993). High-Precision Lead Isotope Ratio Coupled Plasma Multiple Collector Measurement by Inductively Mass Spectrometry. 2 indexed citations

Walder, Andrew J., I. Platzner, & Philip A. Freedman. (1993). 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. Journal of Analytical Atomic Spectrometry. 8(1). 19–23. 143 indexed citations

10.

Palacz, Zenon, Philip A. Freedman, & Andrew J. Walder. (1992). Thorium isotope ratio measurements at high abundance sensitivity using a VG54-30®, an energy-filtered thermal ionization mass spectrometer. Chemical Geology Isotope Geoscience section. 101(1-2). 157–165. 10 indexed citations

11.

Walder, Andrew J. & Philip A. Freedman. (1992). Communication. Isotopic ratio measurement using a double focusing magnetic sector mass analyser with an inductively coupled plasma as an ion source. Journal of Analytical Atomic Spectrometry. 7(3). 571–571. 155 indexed citations

12.

Miller, L. S., et al.. (1988). Reflectometry measurement of optical parameters of Au/SiO2/Si films. Thin Solid Films. 156(1). 11–20. 6 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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