Table 1.

Reagents of 5 M Sodium Bisulfite Solution

Reagents/Volumes	1 ml	2 ml	3 ml	4 ml	5 ml
Sodium bisulfite	0.475 g	0.95 g	1.425 g	1.9 g	2.375 g
Deionized water	0.625 ml	1.25 ml	1.875 ml	2.5 ml	3.125 ml
2 M NaOH (80 mg/ml)	175 μl	350 μl	525 μl	700 μl	875 μl
1 M hydroquinone (110 mg/ml)	125 μl	250 μl	375 μl	500 μl	625 μl