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. Author manuscript; available in PMC: 2009 Mar 18.
Published in final edited form as: J AOAC Int. 2005;88(5):1279–1291.

Table 3.

Linearity study results

Laboratory Linear range
found, μg/mL		 Correlation coefficient
1 0.05–100 0.9996
2 0.05–100 1.0000
3 0.05–100 0.9991
4 0.05–101.2 0.9980
5 0.05–20 0.9998
6 0.047–94 1.0000
7 0.038–75.7 1.0000
8 0.04–77.4 0.9998
9 0.060–119.4 0.9993
10 0.05–100 1.0000
11 0.05–100 1.0000