Vol.
25 No. 3
May - June 2003
Use
of the Term "Recovery" and "Apparent Recovery" in Analytical
Procedures (IUPAC Recommendations 2002)
by
D. T. Burns, K. Danzer, and A. Townshend
Pure
and Applied Chemistry,
Vol. 74, No. 11, pp. 2201—2205 (2002)
 |
| For
linear calibration graphs c(test) is independent of the
slopes a1 or a2. The absolute values
of R1 or R2 do not affect the value
of c(test) provided that R1e1l
and R2e2l
are independent of C. |
The
chemical community has used the term recovery to deal
with two quite different experimental configurations. The
terms recovery and apparent recovery are recommended
to avoid confusion caused by the use of the term recovery
to cover two distinct situations. These situations deal
with: (a) the yield of a preconcentration or extraction
stage of an analytical process (where recovery is recommended)
and (b) the quantity observed value/reference value,
obtained using an analytical procedure that involves a calibration
graph (where apparent recovery is recommended).
www.iupac.org/publications/pac/2002/7411/7411x2201.html
Page
last modified 29 April 2003.
Copyright © 2002-2003 International Union of Pure and
Applied Chemistry.
Questions regarding the website, please contact [email protected]
|
