12031 Results for: "Reference Standard Buffers"

Supplier: VWR Chemicals

Buffer solutions, secondary standards, pH value: 12,45, ±0,05, Reference temperature: 25 °C, VWR®, Plastic bottle

Supplier: VWR Chemicals

Buffer Standard solution, Biotechnology Grade, pH value: 7,00, ±0,03, Reference temperature: 25 °C, VWR®, Bottle

Supplier: VWR Chemicals

pH Buffer solution, Phosphate, pH value: 6,87, Reference temperature: 25 °C, VWR®, Neutral

Supplier: Avantor

Volumetric concentrate, for dilution to 500 ml.

Supplier: VWR Chemicals

Buffers, electrolyte and cleaning solutions (100 ml), pH value: 4,00/7,00/10,00, Reference temperature: 20 °C, VWR®, Neutral, Plastic bottle

Supplier: VWR Chemicals

Solutions prepared from AnalaR® NORMAPUR® grade analytical reagents.

Supplier: VWR Chemicals

This product is a ConvoL NORMADOSE® concentrate and contains exactly the amount of substance to prepare one liter of solution.

Supplier: Avantor

The quality of many BAKER ANALYZED™ reagents meets or exceeds the requirements set forth by the American Chemical Society (ACS).

Supplier: Avantor

Specially developed for dissolution testing of pharmaceutical dosage forms and drug discovery, easy to use DILUT-IT™ concentrates can reduce overall cost of ownership in the laboratory. Just add purified water and you are ready for testing.

Supplier: Avantor

Ready-to-use pH buffers are manufactured in large lots to stringent specifications and utilise quality control procedures to reduce lot-to-lot variability. You can eliminate the time and expense of preparation and standardisation of solutions, helping streamline high-volume analytical work in applications such as quality control.

Supplier: Biosensis

The Biosensis Mouse and Rat proNGF Rapid enzyme-linked immunosorbent assay (ELISA) Kit is a sandwich ELISA that allows the quantification of rodent full-length proNGF protein in less than 4 hours in cell culture supernatants, cell lysates and tissue homogenates only if used as directed. This ELISA Kit has also successfully been used on mouse urine samples (Ryu JC et al., 2018). Please refer to the kit protocol for specific use instructions for each substrate application.

This ELISA kit contains a recombinant mouse proNGF standard expressed in E.coli and consists of a pre-coated anti-proNGF capture antibody, a biotinylated anti-proNGF detection antibody and horseradish peroxidase (HRP)-conjugated streptavidin. The addition of a substrate (3,3',5,5'-tetramethylbenzidine, TMB) yields a colored reaction product which is directly proportional to the concentration of proNGF present in samples and protein standards. A proNGF positive control (QC sample) is provided to assure consistent assay performance. This ELISA kit detects rat proNGF due to high degree of homology (96%) with mouse proNGF based on amino acid sequence, and the ability of this kit in detecting proNGF in rat PC12 cell lysates and rat brain tissue homogenate. In the absence of a true rat proNGF standard, results may be expressed as 'mouse proNGF equivalents'. This ELISA kit shows only 20% reactivity with the human form of proNGF and is therefore not suitable to quantify human proNGF. No cross-reactivity was observed with mature mouse NGF and full-length proBDNF when tested in assay buffer.

The antibodies used in this ELISA kit bind epitopes within the pro-domain (capture) and mature domain (detection) of the protein, thus this ELISA assay does not detect the pro-domain peptide. This kit has not been tested for other applications. Sufficient amount of proNGF standard is supplied to allow for spike- and recovery experiments in order to validate this ELISA assay for other sample matrices if required.

Supplier: REAGECON

pH buffer capsules, reference standard, pH value: 4,01, ±0,02, Reference temperature: 25 °C, Orange

Supplier: REAGECON

Buffer standard DIN 19266, pH value: 10,012, -, Reference temperature: 25 °C, Plastic bottle

Supplier: ACTIVE MOTIF

Potassium tetraoxalate dihydrate [pH (S) = 1,67₉ (25 °C)] is a certified secondary standard reference material used as a calibration buffer standard for pH instruments or pH electrodes.

Supplier: WTW

These standard buffer solutions (work reference buffer solutions) are widely used in precision applications.

Supplier: PanReac AppliChem

pH Buffer solution, pH value: 7,00, Reference temperature: 20 °C

Supplier: WTW

Every bottle has its own lot reference with the expiration date.

Supplier: Thermo Fisher Scientific

pH value: 8,00, ±0.01, Reference temperature: 25 °C

Supplier: Hach

For calibration of pH meters

Supplier: PanReac AppliChem

These buffer solutions are useful for the calibration of high precision laboratory pH meters.

Supplier: PanReac AppliChem

These buffer solutions are useful for the calibration of high precision laboratory pH meters.

Supplier: Hanna

pH Buffer solution, pH value: 1,00, ±0,01, Reference temperature: 25 °C, Plastic bottle

Supplier: PanReac AppliChem

Buffer solutions contain citric acid 1 H₂O (11,768 g); sodium hydroxide 50% (6 ml); hydrochlorid acid 35% (3,96 ml); preservative 1% (5 ml) and water (1 l).

Supplier: Hach

The unit-dose powder pillows assure buffer freshness and eliminate the possibility of contamination. Each powder pillow prepares 50 ml of buffer solutions of respective pH.

Supplier: Thermo Fisher Scientific

pH Buffer solution, Carbonate, pH value: 10,00, ±0,01, Reference temperature: 25 °C, Specpure®, Neutral, Bottle

Supplier: Mettler - Toledo

pH Buffer solution, colour coded, pH value: 9,21, Reference temperature: 25 °C, Blue, Plastic bottle

Supplier: Mettler - Toledo

Solutions in sachets ensure optimum precision.

Supplier: Hach

These buffers solutions packs are used for pH meter calibration. The sealed foil pouches can be transported easily and safely without any spillage and also prevents contamination or exposure to air of the solutions.

Supplier: Hach

Buffers traceable to IUPAC/NIST pH scale.

Supplier: Hanna

These technical calibration buffers produced in accordance with ISO 3696/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.