192 Results for: "pH Colored Solutions"

Supplier: Epredia

Epredia™ Dewax and Heat Induced Epitope Retrieval (HIER) H Buffer simultaneously automate deparaffinization, rehydration and epitope retrieval in the Epredia™ PT Module.

Supplier: MP Biomedicals

Choline chloride is an organic compound and a quaternary ammonium salt. It is a weak acid. Choline chloride is the salt of the naturally occurring choline, the pre-stage of the neurotransmitter acetylcholine, which is important for mnemonic and thought-processes. Choline occurs naturally in fungi, hop and kingcups and as integral part of lecithin. Choline chloride is a common food additive in animal husbandry
The enzymatic activities of butyrylcholinesterase (BChE) and paraoxonase 1 (PON1), two serum enzymes synthesized by the liver and related with inflammation, were decreased in a sepsis animal model injected with LPS. Choline chloride administered intravenously at 20 mg/kg body weight prevents the LPS-mediated decreases in the activities of these two enzymes.
Choline chloride is used as a source of methyl groups for methyl-transfer reactions.
Physical Appearance: Hard, White Crystalline Powder
pH: Neutral to Litmus
Vapor Pressure: 10 hPa at 20 °C (Lit.)
Partition Coefficient: n octanol/water (logKow): -3.77 at 25 °C (lit.)
Solubility: Soluble in water: (10% aq soln) Clear, Colorless Solution

Supplier: MP Biomedicals

Dextran sulfate is a polyanionic derivative of dextran produced by esterification of Dextran with chlorosulphonic acid. Dextran sulfate sodium (DSS) is the sodium salt which is a white to off-white powder freely soluble in water and salt solutions to form a stable, clear solution. The high purity and reproducible quality enables its application in pharmaceuticals and biotechnology industry.

Supplier: Ricca Chemical

1 % (w/v) in 50% (v/v) Isopropanol. pH 8.0 (colorless) - 10.0 (pink). Neutralized - slight pink color is normal and desirable. Container: Plastic.

Supplier: MP Biomedicals

BES is a zwitterionic buffer that is used in biochemistry and molecular biology research in the pH range of 6.15 - 8.35 for wide applicability to biochemical studies.

Supplier: Ricca Chemical

0.5% (w/v) in 50% (v/v) Alcohol. pH 8.0 (colorless) - 10. 0 (pink). Neutralized - slight pink color is normal and desirable. Meets APHA, ASTM and EPA Specifications. Container: Plastic.

Supplier: MP Biomedicals

Sodium phosphate is a reagent with very high buffering capacity that is widely used in molecular biology, biochemistry, and chromatography. Sodium phosphate occurs in several forms: monobasic (NaH2PO4), dibasic (Na2HPO4), and tribasic (Na3PO4). Most neutral sodium phosphate buffer solutions consist of mixtures of the monobasic and dibasic forms to varying degrees, depending on the desired pH.
Sodium phosphate monobasic, Monohydrate is used as sequestrant, emulsifier and buffer in foods; as mordant in dyeing; for weighting silk in tanning; in manufacture of enamels, ceramics, detergents, boiler compounds; as fireproofing agent; in soldering and brazing instead of borax; as reagent and buffer in analytical chemistry; cathartic; laxative. A table for preparation of 0.1 M sodium phosphate buffer at 25 °C using various proportions of sodium phosphate monobasic and sodium phosphate dibasic has been published. A study of the effect of freeze-thaw storage cycles on proteins in sodium phosphate and potassium phosphate buffer solutions has been reported. The effect of 5 mM sodium phosphate on the efficacy of electrospray ionization (ESI) ion mobility spectrometry (IMS) analysis has been evaluated. A protocol for the purification of pyrogen-free mouse IgG1 monoclonal antibodies which uses 10 mM sodium phosphate (pH 7.4) has been published. An ion-pairing HPLC method for the analysis of 5-aminosalicylic acid has been reported. A TLC method for separation of nucleotide sugars in the study of glycosyltransferase activity has been published.
Room Temperature, Desiccate

Supplier: MP Biomedicals

Arachidonic Acid is an essential fatty acid. Occurs in liver, brain, glandular organs, and depot fats of animals, in small amounts in human depot fats, and is a constituent of animal phosphatides.
Arachidonic Acid is a precursor in the biosynthesis of prostaglandins, thromboxanes, and leukotrienes. Arachidonic acid plays a key role in cellular regulation and is controlled through multiple interconnected pathways.
Arachidonic acid (AA) is an unsaturated ω6 fatty acid constituent of the phospholipids of cell membranes. Phospholipase A2 releases AA from the membrane phospholipids in response to inflammation. AA is subsequently metabolized to prostaglandins and thromboxanes by at least two cyclooxygenase (COX) isoforms, to leukotrienes and lipoxins by lipoxygenases, and to epoxyeicosatrienoic acids via cytochrome p450-catalyzed metabolism. AA and its metabolites play important roles in a variety of biological processes, including signal transduction, smooth muscle contraction, chemotaxis, cell proliferation and differentiation, and apoptosis. AA has been demonstrated to bind to the a subunit of G protein and inhibit the activity of Ras GTPase-activating proteins (GAPs). Cellular uptake of AA is energy dependent and involves protein-facilitated transport across the plasma membrane.
If ethanol is undesirable, arachidonic acid may be dissolved in acetonitrile, DMF, or DMSO. Simply evaporate the ethanol under a gentle stream of nitrogen (be certain not to evaporate the material to dryness) and redissolve the arachidonic acid in the solvent of choice.Just prior to use, make dilutions of the stock solution into aqueous buffer or isotonic saline to bring the arachidonic acid to the desired concentration. Ensure that the residual amount of organic solvent is insignificant, since organic solvents may have physiologic effects at low concentrations. A control using the solvent in the absence of the prostaglandin will address this potential variable. We do not recommend storing the aqueous solution for more than one day. It is difficult to obtain aqueous solutions of arachidonic acid directly. However, an organic solvent free solution of arachidonic acid can be prepared using concentrated basic buffers (pH > 8.0 and ionic strength not less than 0.1 M). Add 400 μL of cold buffer (0 °C) per mg of arachidonic acid and agitate vigorously and/or ultrasonicate.

Supplier: MP Biomedicals

Cholic acid is a biochemical solubilizing agent (a non-ionic, non-denaturing detergent). Occurs inconjugation with glycine or taurine in bile of most vertebrates.

Supplier: Corning

Trypan Blue is the most common stain used in cell count and viability assays.

Supplier: AVANTOR PERFORMANCE MATERIALS US

Accurate to within ±0.01 pH at 25 °C (±0.02 for pH 9 and 9.18).

Supplier: Advantec MFS

pH Test Papers–Various types of indicator papers cover a wide pH range to allow for good accuracy of determining pH value of a solution

Supplier: Electron Microscopy Sciences

Series of pH indicator papers where the indicator and color scale are combined on a single strip.

Supplier: Micro Essential

This short-range Hydrion pH paper is excellent for measuring pH solutions around neutral pH 7.00.

Supplier: Micro Essential

This short-range Hydrion pH paper is excellent for measuring pH solutions.

Supplier: Electron Microscopy Sciences

In contrast to conventional indicator papers, the indicator dyes of pH-Fix sticks are substantially bound to the cellulose fibers

Supplier: Precision Laboratories

pH Test Papers in your Choice of Two Indicator Colors.

Supplier: Mettler Toledo

NIST-traceable buffer for pH electrode calibration and verification.

Supplier: Ricca Chemical

pH Buffer Reference Standard Solution for Calibration, pH 4.00 0.01 at 25°C.

Supplier: VWR International

A ready-to-use kit that fits into your lab coat pocket.

Supplier: MERCK, S.A. DE C.V. SV

Roll with color scale Ph Eur.

Supplier: Cytiva

Universal indicator papers which have been impregnated with a mixture of several indicators.

Supplier: Thermo Fisher Scientific

Hold 5 gallons (19L) of pH buffer in color-coded Orion™ pH Buffer Cubitainers™

Supplier: VWR International

A ready-to-use kit that fits into your lab coat pocket.

Supplier: Ward's Science

Use Color Transition of Titration to Determine Water Hardness.

Supplier: Azer Scientific Inc.

Low molarity phosphate buffers optimized for use with Azer Scientific Wright and Wright-Giemsa stain solutions.

Supplier: Cytiva

Can be used for the rapid determination of pH values has led to many applications in laboratories and industry

Supplier: Cytiva

Can be used for the rapid determination of pH values and has led to many applications in laboratories and industry

Supplier: Veltek Associates

Dec-Quat 200V is a neutral pH quaternary ammonium solution It is phosphate free, non-sterile and an EPA registered disinfectant, virucide, sanitizer, germicidal detergent, deodorant and fungicide designed specifically for the life science and research and development industries.

Supplier: Macherey-Nagel

Quantofix Nitrite test strips for the semi-quantitative determination of nitrite NO2 - in solutions.