Table 1.

Percent recovery of DIM from urine

DIM added (ng)Concentration (ng/mL)Percent recovery
A100*
A201*
A301*
Mean (SD)1 (0)*
B15455102
B25458107
B35459110
Mean (SD)57 (2)106 (4)
C1270270100
C2270275102
C3270274102
Mean (SD)273 (3)101 (1)
D154050894
D254050994
D354051295
Mean (SD)510 (2)94 (0)
E11,0801,06999
E21,0801,095101
E31,0801,06699
Mean (SD)1,077 (16)100 (1)

NOTE: Known concentrations of DIM were aliquoted in triplicate to urine in each group. The internal standard was added and each sample was extracted and derivatized.

*No DIM added and no DIM and no DIM recovered.