Table 1.

FIA-DMS-MS/MS analysis of urinary acetylcarnitine from healthy male NHPs exposed to levels of radiation from 0 Gy (control) to 10 Gy. NHP urinary acetylcarnitine quantification was performed using calibration curves spiked into urine from three different species. Concentrations are reported in μM units. The above table demonstrates species-dependent differences in quantification and confirms that NHP urinary acetylcarnitine concentrations should be determined from a calibration curve using urine from the same species.

	Control (n=3)	2 Gy (n=3)	4 Gy (n=3)	6 Gy (n=3)	7 Gy (n=3)	10 Gy (n=3)
NHP	7 μM	9 μM	27 μM	17 μM	240 μM	220 μM
SEM	5	9	11	5	222	40
Rat	13 μM	15 μM	40 μM	27 μM	332 μM	310 μM
SEM	7	12	15	6	248	47
Human	−9 μM	−7 μM	14 μM	3 μM	276 μM	256 μM
SEM	6	11	13	6	221	42