TY - JOUR
T1 - Theory of sampling (TOS) versus measurement uncertainty (MU) - A call for integration
AU - Esbensen, Kim H.
AU - Wagner, Claas
PY - 2014/5
Y1 - 2014/5
N2 - We assess current approaches to measurement uncertainty (MU) with respect to the complete ensemble of sources affecting the measurement process, in particular the extent to which sampling errors as set out in the Theory of Sampling (TOS) are appropriately considered in the GUM and EURACHEM/CITAC guides. All pre-analysis sampling steps play an important, often dominant role in the total uncertainty budget, thereby critically affecting the validity of MU estimates, but most of these contributions are not included in the current MU framework. The TOS constitutes the only complete theoretical platform for dealing appropriately with the entire pathway from field sample to test portion. We here propose a way to reconcile the often strongly felt differences between MU and TOS. There is no need to debate terminology, as both TOS and MU can be left with their current usages.
AB - We assess current approaches to measurement uncertainty (MU) with respect to the complete ensemble of sources affecting the measurement process, in particular the extent to which sampling errors as set out in the Theory of Sampling (TOS) are appropriately considered in the GUM and EURACHEM/CITAC guides. All pre-analysis sampling steps play an important, often dominant role in the total uncertainty budget, thereby critically affecting the validity of MU estimates, but most of these contributions are not included in the current MU framework. The TOS constitutes the only complete theoretical platform for dealing appropriately with the entire pathway from field sample to test portion. We here propose a way to reconcile the often strongly felt differences between MU and TOS. There is no need to debate terminology, as both TOS and MU can be left with their current usages.
KW - Correct sampling error
KW - EURACHEM/CITAC
KW - GUM
KW - Inconstant sampling bias
KW - Incorrect sampling error
KW - Measurement uncertainty
KW - Sampling bias
KW - Sampling error
KW - Theory of sampling
KW - Total sampling error
UR - http://www.scopus.com/inward/record.url?scp=84899838910&partnerID=8YFLogxK
U2 - 10.1016/j.trac.2014.02.007
DO - 10.1016/j.trac.2014.02.007
M3 - Article
SN - 0165-9936
VL - 57
SP - 93
EP - 106
JO - TrAC - Trends in Analytical Chemistry
JF - TrAC - Trends in Analytical Chemistry
ER -