Buffer formulations – C.B.S. Scientific TTGE-2401 User Manual
Page 10

ClearPAGE Precast Gel Running Instructions 7-1-14
10
BUFFER FORMULATIONS
As an alternative to the buffers ClearPAGE sells, these formulations may be used to prepare buffers
yourself. Use high-quality, low-conductance ingredients. Do NOT use acid or base to adjust the pH!
Standard SDS Running Buffer, 20X for Reduced Samples (FB60500)
Ingredient
MW
Molarity
Qty/Liter
Tricine (free acid)
179.17
0.8M
143.4 g
Tris (free base)
121.14
1.2M
145.2 g
SDS (2%)
288.38
-
20.0 g
Sodium Meta-bisulfite
104.06
50mM
5.0 g
Ultrapure water (fill to)
-
-
1000ml
* pH should be between 8.4 and 8.5 at 25° C.
* For non-reduced samples (especially antibodies), omit the Sodium Meta-bisulfite
Turbo SDS Running Buffer, 20X FB13500
Ingredient
MW
Molarity
Qty/Liter
MPS (free acid)
209.26
0.6M
125.6 g
Tris (free base)
121.14
1.2M
145.2 g
SDS (2%)
288.38
-
20.0 g
Sodium Meta-bisulfite
104.06
50mM
5.0 g
Ultrapure water (fill to)
-
-
1000 ml
* pH should be between 8.3 and 8.4 at 25° C.
* For non-reduced samples (especially antibodies), omit the Sodium Meta-bisulfite
LDS Sample Buffer, 4x -FB31010
Ingredient
MW
Molarity
Qty/Liter
Glycerol (40%)
-
-
400 g
Ficoll-400 (4%)
-
-
40 g
Triethanol amine, pH7.6
149.2
0.8M
120.0
6 N HCL
36.46
-
93.0 g
Lithium Dodecyl Sulfate (4%)
-
-
40 g
EDTA Di-Sodium
372.2
2mM
7.44 g
Brilliant Blue G250 (0.025%)
-
-
0.25g
Phenol Red
-
-
0.25 g
Ultrapure water (fill to)
-
-
1000 ml
* pH should be between 7.7 and 7.8 at 25° C.