MOPS, 3-(N-Morpholino)propanesulfonic acid, is a biological buffer, the buffer range is 6.5~7.9, which is suitable for the study of electron transfer and phosphorylation in chloroplast thin layer; it… I autoclaved the buffer, but it has turned yellow after autoclaving. Today I made 10X MOPS buffer for running RNA gels. Using proprietary techniques, Tris-MOPS-SDS Running Buffer Powder are made to have long shelf life, high resolution, fast electrophoresis, smaller volume. Running Buffer ML119-10X500 ML 10X 500 ML Introduction: 20X MOPS-SDS Running Buffer is formulated for running proteins on Bis-Tris gels only. This pre-mixed buffer is supplied as a 20X concentrated solution. I autoclaved the buffer, but it has turned yellow after autoclaving. Recipe can be automatically scaled by entering desired final volume. This buffer is recommended for separating medium- to large-sized proteins. It was colourless before. Are you sure that you were supposed to autoclave the solution, and not filter sterilize it? Today I made 10X MOPS buffer for running RNA gels. MOPS buffer is often used in polyacrylamide gel electrophoresis. Hello, Prepare 1X MOPS running buffer for RNA gel electroporesis as follows: 10X MOPS buffer; 37%-formaldehyde; ddH 2 0; Attachments. It will turn yellow with age, and on long exposure to light, and, apparently, when autoclaved. NuPAGE MOPS SDS Running Buffer (20X) is formulated for running proteins on NuPAGE Bis-Tris gels. The buffer is easy to make, aquiring the RNA sample is hard... MOPS can't be autoclave thats why it change color. MOPS buffer turns yellow as it degrades (oxidizes). Is the yellow colour a problem? Prepare a new batch. !So don't use it. MOPS SDS running buffer: 50 mM MOPS, 50 mM Tris base, 0.1% SDS, 1 mM EDTA, pH 7.7 Recipe for 20X buffer stock: MOPS 104.6 g Tris base 60.6 g SDS 10 g EDTA 3.0 g Deionized water to 500 mL. I followed the standard recipe given to me by another person, and I checked it up online and found the exact same recipe recommended everywhere. making MOPS sometime is a hassel if have the money buy it 10X and just dilute. The Buffer should be filtrate!!! Tris-MOPS-SDS Running Buffer Powder are used for ExpressPLUS and SurePAGE gel transfer. Prepare 10X MOPS buffer by adding: 3-(N-morpholino) propanesulfonic acid (MOPS) (=200mM) Sodium acetate.3H 2 … It is recommended for separating medium- to large-sized proteins.Use the right buffer to optimize protein separations NuPAGE MES SDS Running Buffer and NuPAGE MOPS SDS Running Buffer … It was colourless before. ... - Volume of 10X MOPS buffer: Step 1. Electrophoresis running buffers Transfer buffers Ready-to-use alternative: Looking around on the web, it appears people have used "yellow" MOPS in RNA gels without difficulty (straw-colored yellow, anyhow -- I don't know how yellow your solution is...), but were it me, knowing that MOPS turning yellow is a sign it's oxidized (degraded), I wouldn't use it -- I'd make some fresh stuff up, filter sterilize it, and store it protected from light (as is recommended in Maniatis and in Current Protocols). MOPS Buffer (10X) (0.2 M, pH 7) preparation guide and recipe. Recipe of 1X MOPS Buffer: Reconstitute with 1000 ml H2O to make 1X running buffer per bag of powder. You autoclave the water(DEPC treated) and the recipient where it will be but not the buffer. I followed the standard recipe given to me by another person, and I checked it up online and found the exact same recipe recommended everywhere. In biochemical experiments, the buffer recipe is often the top priority of the experiment, and a truly reliable recipe can definitely change the fate of the experiment. I have stored it at 4 C. Should I wrap it in Aluminum foil? I have stored it at 4 C. Should I wrap it in Aluminum foil? Recipes for stock solutions and general use buffers ... 1 M MOPS stocks: For 1 L • Dissolve 209.3 g MOPS (free acid) in 800 mL of ddH 2O • Adjust the pH to the desired value with 10 N NaOH ... 10x Tris-glycine running buffer: For 4 L • 121.1 g Tris base • 576 g glycine © 1999-2013 Protocol Online, All rights reserved.