File(s) not publicly available
New Approach to Geochemical Measurement: Estimation of Measurement Uncertainty from Sampling, rather than an Assumption of Representative Sampling
journal contribution
posted on 2023-06-08, 04:54 authored by Michael H Ramsey, Katy A BoonIt is argued that the current division between field sampling and chemical analysis is counterproductive in terms of ensuring that geochemical measurement results are fit for their intended purpose. An integrated approach to the whole measurement process has many advantages including no dependence on the two assumptions that either the samples are necessarily representative if taken with a correct protocol, or that the measurement results can be assumed to be true values of chemical concentration. The measurement results then require values of measurement uncertainty, including that from sampling as well as from chemical analysis. This enables the user of the measurement results, rather than the producer, to judge their fitness for a specific purpose. Case studies are used to illustrate the practicality and benefits of this new approach, including the use of measurement results with optimal, but relatively high, levels of uncertainty to make reliable decisions. This contrasts with the traditional assumption that pursuit of the lowest possible measurement uncertainty is the best approach.
History
Publication status
- Published
Journal
Geostandards and Geoanalytical ResearchISSN
1639-4488External DOI
Issue
3Volume
34Page range
293-304Pages
12.0Department affiliated with
- Evolution, Behaviour and Environment Publications
Notes
Paper written by Ramsey, with minor contribution by Boon, based upon findings from two research projects of which Ramsey was the principal investigator.Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
Categories
No categories selectedKeywords
Licence
Exports
RefWorks
BibTeX
Ref. manager
Endnote
DataCite
NLM
DC