Table 1

Hyperfine coupling constants of 4-POBN adducts in urine and bile

Sample MediumTreatment%RadicalHyperfine Splitting (G)
aNaβHaβC-13
UrineCsA/oil1-a 100Unknown15.642.48
CsA/[13C]DMSO1-a 38Unknown15.682.60
62·13CH3 15.962.744.95
Fenton system1-b containing DMSO100· CH3 15.972.74
BileCsA/oil1-a 100Pentyl15.572.80
CsA/[13C]DMSO1-a 83Pentyl15.572.64
17·13CH3 15.942.744.85
Fenton system1-b containing DMSO 100· CH3 15.932.74

  • ↵1-a Rats were gavaged with CsA solutions as described inMaterials and Methods.

  • ↵1-b 50-μl Fenton/DMSO system was diluted with 500 μl of sample medium.