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. Author manuscript; available in PMC: 2012 Sep 30.
Published in final edited form as: J Immunol Methods. 2011 Jul 18;372(1-2):71–77. doi: 10.1016/j.jim.2011.06.033

Table 2.

Comparison of standard curves used in this study.

Standard Concentration
Calibration Tube MSD CBA
Vendor Modified Vendor Modified
1 2500a 2500 5000 2500
2 625 625 2500 625
3 156 156 1250 156
4 39 39 625 39
5 9.8 9.8 312.5 9.8
6 - 4.9b 156 4.9
7 2.4 2.4 80 2.4
8 - 1.2 40 1.2
9 0.6 0.6 20 0.6
10 - 0.3 - 0.3
11 - 0.15 - 0.15
12 0 0 0 0
a

Approximate concentration of standards in pg/ml in each tube

b

Bold = added in the modified standard curve