217 / 363
%
( 3)
=
⎝ ⎜⎜⎜⎛ �
( 3)
− �
( 2)
2 ��
1
1000
� 0.255
0.250 � ,
, ( , 100 )
⎠ ⎟⎟⎟⎞ 100
%
( 4)
=
⎝ ⎜⎜⎜⎛ �
( 4)
− �
( 3)
2 ��
1
1000
� 0.255
0.250 � ,
, ( , 100 )
⎠ ⎟⎟⎟⎞ 100
% = �%
( 1)
� + �%
( 2)
� + �%
( 3)
� + �%
( 4)
�
% = ( %) − �( %) � %
( 1)
100 ��
Graphing the Release Plot
Plot the cumulative % of analyte (nutrient) released on the y-axis versus the h of extraction on
the x-axis. The release plot will be similar to Figure
2015.15B
, except for a change in the units on
the x-axis from cumulative days of extraction to cumulative hours of extraction. An example
graph can be found in Appendix B of ref. 2 in the online
J. AOAC Int
.
References
(1)
J. AOAC Int.
97
, 643(2014)
DOI:
http://dx.doi.org/10.5740/jaoacint.13-065(2)
J. AOAC Int
.
97
, 661(2014)
DOI:
http://dx.doi.org/10.5740/jaoacint.12-482J. AOAC Int.
(future issue)
Posted: March 3, 2016
Candidates for 2016 Method of the Year
216