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. Author manuscript; available in PMC: 2009 Feb 1.
Published in final edited form as: J Chromatogr B Analyt Technol Biomed Life Sci. 2007 Nov 4;862(1-2):64–71. doi: 10.1016/j.jchromb.2007.10.044

Table 1.

Specificity and limit of quantitation of 4-HPR in mouse plasma: lot-to-lot variation

Nominal conc. LLOQ (0.50 ng/mL)
  
  
  
  
Lot # Measured STDEV % CV % Accuracy
Lot 1 (n=3) 0.44 0.05 12.20 87.87
Lot 2 (n=3) 0.46 0.06 13.09 91.40
Lot 3 (n=3) 0.52 0.06 11.55 103.13
Lot 4 (n=3) 0.58 0.02 3.34 115.67
Lot 5 (n=3) 0.52 0.04 8.09 103.53
Lot 6 (n=3)
 0.52
 0.03
 5.48
 103.27
n 18
Mean 0.50
STDEV 0.05
% CV 0.10
% Accuracy 100.81