"Staining Solutions"
Methylene blue trihydrate, powder C.I. 52015
Supplier: MP Biomedicals
Methylene blue has been used as a stain in bacteriology and as an oxidation-reduction indicator. A sensitive stain for RNA and
ribonuclease. An ethidium bromide alternative for the visualization of nucleic acids in gels:
Expand 1 Items
Sodium hydroxide 4 mol/l (4 N) in aqueous solution, VOLUSOL® volumetric solution
Supplier: VWR Chemicals
Sodium hydroxide 4 mol/l (4 N) in aqueous solution, VOLUSOL® volumetric solution
Expand 1 Items
Conductivity standards, Potassium chloride, IUPAC
Supplier: Hach
Potassium chloride standard solutions according to OIML, traceable to NIST and Standard solution verified by Reference Materials Laboratory.
Expand 3 Items
Ponceau S, Bioreagent for electrophoresis, Sigma-Aldrich®
Supplier: SIGMA ALDRICH MICROSCOPY
Ponceau S is the sodium salt of a diazo dye. It is used to make a stain for rapid reversible staining of protein bands on nitrocellulose or PVDF membranes (Western blots) and also for staining protein on cellulose acetate membranes. The stain is reversed with water washes and aids in subsequent immunological detection. The following are two common stain formulations: 0.1% Ponceau S (w/v) in 5% acetic acid 2% Ponceau S (w/v) in 30% TCA, 30% sulfosalicylic acid.
Expand 3 Items
2,2’-sulphonyldiethanol solution 65% in water
Supplier: Apollo Scientific
2,2’-sulphonyldiethanol
Expand 4 Items
Plasmid DNA buffers
Supplier: OMEGA BIO-TEK
Solution 1, resuspension buffer
Expand 5 Items
Fuchsin (acid), pure, high purity biological stain
Supplier: Thermo Fisher Scientific
Fuchsin (acid), pure, high purity biological stain
Expand 3 Items
Orange G 85+%, pure, high purity biological stain
Supplier: Thermo Fisher Scientific
Orange G 85+%, pure, high purity biological stain
Expand 2 Items
NHS Ester, SureLight® 488 molecular biology stain
Supplier: Columbia Biosciences
SureLight® 488 NHS Ester is a bright green fluorescent dye with excitation suited to the 488nm laser line, fluorescent microscopy and flow cytometry. It offers a much more stable signal generation in imaging and flow cytometry than FITC and is half the cost of Alexa Fluor® 488 with no royalties or licensing fees.
Expand 1 Items
Potassium bromate 0,100 N in aqueous solution 1 N in aqueous solution USP Test Solution (TS) 34
Supplier: VWR Chemicals
Ready to use test solutions (TS).
Expand 2 Items
Hydrochloric acid 2 N, BAKER ANALYZED® volumetric solution, J.T.Baker®
Supplier: Avantor
Standardised at 25 °C against chemicals whose certification is traceable to NIST. Lot standardisation value, accurate to ±1 part per 1000, provided on label.
Expand 1 Items
Indigo carmine, high purity biological stain, for analysis
Supplier: Thermo Fisher Scientific
Indigo carmine, high purity biological stain, for analysis
Expand 3 Items
Cell culture salts, salt solutions and buffers
Supplier: Biowest
These irrigating buffers and salt solutions are sterile, physiological balanced solutions intended for use in the maintenance of mammalian cells, where a chemically defined, balanced salt solution provides an environment that will maintain the structural and physiological integrity of cells in vitro. Applications include the intermediate steps for cultivation of cells, like washing, centrifugation, suspending and counting, as well as for many analytical methods or biochemical treatments. Principally these solutions should be used to keep the cells in suspension only for minutes or a few hours maximum. These buffers and solutions are not cell culture media.
Expand 46 Items
Conductivity standard 1413 µS/cm for conductivity measurement
Supplier: KNICK
KCl solution, 1,413 µS/cm , Reference temperature: 25 °C
Expand 1 Items
Conductivity calibration solutions, YSI
Supplier: YSI ENVIRONMENTAL
Conductivity standard, 50 000 µS/cm



