Table 2.

Trueness calculated by six human urine samples and expressed as percent recovery.

3-MT					MN				NMN
	Endogenous (ng/mL)	Spiking (ng/mL)	Found (ng/mL)	Recovery (%)	Endogenous (ng/mL)	Spiking (ng/mL)	Found (ng/mL)	Recovery (%)	Endogenous (ng/mL)	Spiking (ng/mL)	Found (ng/mL)	Recovery (%)
Urine A	36.21	3	40.90	104.52	29.28	3	35.31	109.38	28.67	3	33.23	104.94
Urine B	30.46		31.35	106.20	7.58		10.30	97.32	18.39		21.57	100.83
Urine C	33.27		38.93	111.00	24.25		28.40	104.22	19.81		22.85	100.16
Urine D	35.73		39.37	101.64	12.56		16.88	108.51	8.88		12.17	102.41
Urine E	23.31		27.48	104.43	12.58		14.78	94.84	18.78		21.78	100.00
Urine F	14.06		16.99	99.57	4.66		7.85	102.53	9.39		11.58	93.49
Urine A	36.21	40	71.29	93.54	29.28	40	75.20	99.86	28.67	40	61.63	89.75
Urine B	30.46		63.38	95.27	7.58		47.25	99.29	18.39		57.31	98.15
Urine C	33.27		66.08	91.69	24.25		64.76	100.79	19.81		54.83	91.67
Urine D	35.73		73.51	97.07	12.56		53.32	101.45	8.88		46.31	94.74
Urine E	23.31		56.66	89.50	12.58		50.05	95.18	18.78		54.96	93.50
Urine F	14.06		52.00	96.20	4.66		44.36	99.34	9.39		46.24	93.63
Urine A	36.21	800	838.19	100.24	29.28	800	854.41	103.03	28.67	800	801.37	96.71
Urine B	30.46		773.61	93.60	7.58		845.32	104.67	18.39		870.78	106.40
Urine C	33.27		783.83	94.20	24.25		849.45	103.06	19.81		826.79	100.85
Urine D	35.73		794.94	95.12	12.56		769.19	94.66	8.88		732.55	90.56
Urine E	23.31		760.70	92.40	12.58		773.47	95.19	18.78		742.51	90.68
Urine F	14.06		822.75	101.07	4.66		825.64	102.61	9.39		810.06	100.08