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. Author manuscript; available in PMC: 2011 Apr 26.
Published in final edited form as: Anal Bioanal Chem. 2010 May 1;397(5):1831–1839. doi: 10.1007/s00216-010-3705-9

Table 3.

Mean measured values (ng/mL) and relative standard deviations (RSD) by triplicate analysis of spiked bovine serum samples

3,5-T2 3,3′-T2 T3a rT3 T4a
100 ng/mL
Intraday Mean 106.3 105.5 115.8 106.9 167.4
RSD 6.0 2.1 4.1 4.3 1.2
50 ng/mL
Intraday Mean 49.1 49.0 50.1 51.3 113.0
RSD 5.3 9.6 4.2 2.6 2.6
Interday Mean 50.4 49.0 51.1 52.2 118.6
RSD 4.6 2.0 3.3 8.4 1.3
10 ng/mL
Intraday Mean 9.6 9.01 10.0 8.1 77.1
RSD 5.4 8.0 5.4 10.1 3.0
a

T4 and T3 values are the sum of spiked levels and endogenous levels.

72.4±7.0 ng/mL of T4 and 3.68 ±0.25 ng/g T3 were detected in bovine serum samples, and the values were different from those in Table 4 due to serum samples were from different batches.