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. Author manuscript; available in PMC: 2015 Jul 1.

Published in final edited form as: Steroids. 2014 Dec 25;99(0 0):84–90. doi: 10.1016/j.steroids.2014.12.005

Table 4.

Precision of IS products by tSIM MS in serum.

	Serum 1			Serum 2
	Calc added Amt (pg/ml) Ave	CV		Calc added Amt (pg/ml) Ave	CV
	Calc added Amt (pg/ml) Ave	Intra-day (%)	Inter-day (%)	Calc added Amt (pg/ml) Ave	Intra-day (%)	Inter-day (%)
E1	11.6	21	13	102.7	6	7
E2	16.3	8	1	108.1	8	2
E3	8.6	9	11	99.7	7	11
16epiE3	8.7	13	ND	61.3	26	18
17epiE3	8	14	16	97.9	2	8
16ketoE2	10.3	5	24	103.8	10	8
16OHE1	10.4	8	9	97.8	7	7
2OHE1	7.9	11	15	93.7	4	4
4OHE1	8.2	16	22	95.7	8	4
2OHE2	11.4	5	17	107.1	7	13
4OHE2	5.6	31	19	90.1	9	8
2OMeE1	12.7	9	14	105.5	5	10
2OMeE2	8.9	11	10	98.3	8	8
4OMeE2	10.9	7	7	99.1	5	7