Goldbook title
IUPAC > Gold Book > alphabetical index > P > preconcentration coefficient of a desired microcomponent in trace analysis
Gold G Icon
Indexes Download

preconcentration coefficient

in trace analysis
This is defined as
K = Q T Q M Q T o Q M o
where Q T and Q T o are the quantities of the microcomponent in the concentrate and in the sample, respectively (mass units or concentration units), and Q M o and Q M and are the quantities of the matrix before and after preconcentration, respectively. If the recovery is 100%, K = Q M o Q M. The terms enrichment coefficient and enrichment factor are not recommended.
Source:
PAC, 1979, 51, 1195 (Separation and preconcentration of trace substances. I - Preconcentration for inorganic trace analysis) on page 1198
Interactive Link Maps
First Level Second Level Third Level
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. doi:10.1351/goldbook.
Last update: 2014-02-24; version: 2.3.3.
DOI of this term: doi:10.1351/goldbook.P04804.
Original PDF version: http://www.iupac.org/goldbook/P04804.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.
Current PDF version | Version for print | History of this term
picture