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. Author manuscript; available in PMC: 2014 Sep 10.
Published in final edited form as: J Alzheimers Dis. 2014;41(2):441–451. doi: 10.3233/JAD-132489

Table 2.

Analytical recovery of Aβ42 from five different pools of human CSF

pg/mL Basal value (n = 4) Pool 1
708 (CV = 6.6%)		 Pool 4
688 (CV = 4.4%)		 Pool 5
864 (CV = 2.2%)		 Pool 16
286 (CV = 10.5%)		 Pool 32
362 (CV = 9.3%)
Spiked-in Amount 200 500 750 1000 200 500 750 1000 200 500 750 1000 200 500 750 1000 200 500 750 1000
Spiked Value 989 1260 1455 1760 875 1095 1340 1830 1037 1425 1610 1730 496 844 969 1295 543 863 1115 1360
Theoretical 908 1208 1458 1708 888 1188 1438 1688 1064 1364 1614 1864 486 786 1039 1286 562 1062 1112 1362
Bias (%) 8.9 4.3 −0.2 3.0 −1.5 −7.8 −6.8 8.4 −2.5 4.5 −0.3 −7.2 2.0 7.4 −6.5 0.7 −3.5 −18.8 0.3 −0.2