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. Author manuscript; available in PMC: 2010 Aug 17.
Published in final edited form as: Chem Res Toxicol. 2009 Aug 17;22(8):1454–1463. doi: 10.1021/tx900155f

Table 2.

Within-Day and Between-Day Estimates and Precisions of PhIP Measurements in Human Hair

PhIP (pg/g hair)
Subject Day 1 Day 2 Day 3 Overall CV(%)
within-day		 CV(%)
between-day
1 Mean 522 514 483 508
SD 21 65 10 38
RSD(%) 4.1 12.6 2.1 7.4 8.1 7.8
2 Mean 896 765 712 802
SD 39 35 66 94
RSD(%) 4.3 4.6 9.2 11.7 6.1 12.9

n = 3 or 4 replicates per day