Polyacrylamide gel staining procedure – Bio-Rad Silver Stain Plus Kit User Manual
Page 7

Silver Stain Plus 5
Polyacrylamide Gel Staining Procedure
The following preparations are adequate for staining two
mini gels (8 x 10 cm), 0.75–1.0 mm thick. Refer to Table A
for staining gels of other sizes.
1. Fixative Step — 20 min
Fixative enhancer solution
preparation (for 2 mini gels)
Reagent-Grade
Methanol
200 ml
50% V/V
Reagent-Grade
Acetic Acid
40 ml
10% V/V
Fixative Enhancer
Concentrate
40 ml
10% V/V
Deionized Distilled
Water
120 ml
30% V/V
Total
400 ml
100% V/V
After gel electrophoresis, place gels in the fixative
enhancer solution. With gentle agitation fix the gels for
20 min. Refer to Table A for fixing times and solution
volumes for larger gels.
2. Rinse Step — 20 min
Decant the fixative enhancer solution from the staining
vessel. Rinse the gels in 400 ml deionized distilled
water for 10 min with gentle agitation. After
10 min, decant water and replace with fresh rinse
water. Rinse for an additional 10 min. Decant rinse
water. For larger and thicker gels, rinse with 800 ml
water for 40 min.