Deep purple staining
Introduction
This section presents a Deep Purple staining protocol recommended by GE
Healthcare. For more information refer to RPN6305 Deep Purple Total Protein
Stain.
Deep Purple staining solutions
Preparation
Solution
1
Mix 150 ml ethanol and 10 g citric acid (approx. pH 2.3).
2
Make up to 1.0 l with distilled water.
Note:
Fixing solution can be stored at room temperature for up to six months.
Fixating/
Acidifying
solution
1
Disolve 6.2 g boric acid in 800 ml distilled water. Adjust to pH 10.5
with NaOH.
2
Make up to 1.0 l with distilled water.
Note:
Boric acid / sodium hydroxide buffer can be stored at room temperature
for up to six months.
Working
staining solution
Note:
Staining solution should be made fresh just before use by adding 1 part
Deep Purple to 200 parts borate buffer for gels. Prior to diluting with
borate buffer, ensure that the Deep Purple concentrate is at room
temperature.
48
Amersham ECL Gel and Gel Box User Manual 28-9943-33 AC
5 Protocols
5.3 Post-staining of the gel
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