SAMPLE

r1 × 103*

r2 × 103*

r2/r1*

REMARKS

#072012

13.6 ± 1.88

3.37 ± 1.33

0.246 ± 0.097

Fresh sample promptly analyzed

#072005

7.68 ± 0.71

17.6 ± 2.20

2.31 ± 0.40

Sample stored in dark at 4˚C for

~7 years