You Searched For: Biuret

Supplier: Thermo Fisher Scientific

Description: Biuret 97%, Extra Pure

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Catalog Number: (87787.290)

Supplier: VWR Chemicals

Description: Biuret reagent solution Reag. Ph. Eur.

UOM: 1 * 1 L

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Catalog Number: (220947S)

Supplier: VWR Chemicals

Description: Biuret reagent solution for protein (total) in serum or plasma

UOM: 1 * 5 L

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Supplier: Thermo Fisher Scientific

Description: Biuret 97%

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Catalog Number: (1.10307.0500)

Supplier: Merck

Description: Test kit, Protein (Biuret Method at 546 nm), reagent solution for approx. 250 determinations

UOM: 1 * 500 mL

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Catalog Number: (MOLE12779060-100G)

Supplier: Molekula

Description: Biuret

UOM: 1 * 100 g

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Supplier: SIGMA ALDRICH MICROSCOPY

Description: Folin & Ciocalteu's phenol reagent is most commonly used in the Lowry method for determining protein concentration. It has also been used for the quantification of total phenolics. In this method, protein is pretreated with copper(II) in a modified biuret reagent (alkaline copper solution
stabilized with sodium potassium tartrate). Addition of the phenol reagent generates chromogens that give increasing absorbance between 550-750nm. Normally, absorbance at the peak (750 nm) or shoulder (660 nm) are used to quantitate protein concentrations between 1 - 100 mg/ml while absorbance at 550 nm is used to quantitate higher protein concentrations.

Catalog Number: (ICNA0855951)

Supplier: MP Biomedicals

Description: Product is the lyophilized powder of rat IgG and buffer salts.IgG antibody subtype is the most abundant serum immunoglobulins of the immune system. It is secreted by B cells and is found in blood and extracellular fluids and provides protection from infections caused by bacteria, fungi and viruses. Maternal IgG is transferred to fetus through the placenta that is vital for immune defence of the neonate against infections. The total protein is determined using the Biuret procedure, with bovine albumin as the standard. Each vial is overfilled by approximately 10 percent so that a minimum of 20 mg of rat IgG is obtained upon reconstitution.

UOM: 1 * 20 mg

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Catalog Number: (ICNA0855049)

Supplier: MP Biomedicals

Description: The total protein is measured using the Biuret procedure, with bovine albumin as a standard. Antibody titer of the IgG fraction is standardized by equivalence-point precipitation. F(ab')2 fragments are tested for purity and specificity at a minimum of 20 mg/mL using immunoelectrophoresis. The product is goat F(ab')2; no trace of albumin, whole molecule IgG or Fc is detected.

UOM: 1 * 2 mL

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Supplier: G-Biosciences

Description: Determination of protein concentration is an essential technique in all aspects of protein studies and proteomics. The Assays for Protein Quantification kit includes three of the most widely used protein assays and allows for a direct comparison of the three assays that teaches students the benefits and limitations of each assay. Each assay is available individually to allow teaching of a specific assay, without the option of comparing and contrasting with other assays. The three assays covered are the Biuret Protein Assay, Lowry Protein Assay and the Coomassie Blue Dye Protein Assay. The Assays for Protein Quantification kit provides all the reagents required to perform both protein assays, including protein standards for accurate quantification, in a single lab activity. An often underestimated factor in quantifying protein is the presence of non-protein interfering agents, such as salts and detergents. This kit teaches students about common laboratory agents that affect the protein assays, the reasoning behind their interferences and how to overcome the interference. Students also learn how to select a protein assay for different applications.

Catalog Number: (ICNA0855916)

Supplier: MP Biomedicals

Description: Product is human IgM and buffer salts.The product is tested for purity at a minimum of 20 mg/mL using immunoelectrophoresis. The product is human IgM; no trace of IgG, IgA or non-immunoglobulin serum proteins is detected. The total protein is determined using the Biuret procedure, with bovine albumin as the standard. Each vial is overfilled by approximately 10 percent so that a minimum of 5 mg of human IgM is recovered.

UOM: 1 * 5 mg

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Catalog Number: (ICNA0855499)

Supplier: MP Biomedicals

Description: The total protein is measured using the Biuret procedure with bovine albumin as the standard; F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the IgG fraction is standardized with an in-house control by immunoelectrophoresis; No trace of albumin is detected. Antibody activity to non-immunoglobulin serum proteins is not present.

UOM: 1 * 2 mL

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Catalog Number: (ICNA0855150)

Supplier: MP Biomedicals

Description: This product is the lyophilized powder of fluorescein-5-isothiocyanate (FITC "Isomer I")-conjugated goat IgG fraction to human IgG Fc and buffer salts,The total protein is measured using the Biuret procedure with bovine albumin as the standard; F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the IgG fraction is standardized by equivalence-point precipitation. The IgG fraction is tested for purity and specificity at 40 mg/mL using immunoelectrophoresis. The product is mostly goat IgG; no trace of albumin is detected.

UOM: 1 * 2 mL

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Catalog Number: (ICNA0855908)

Supplier: MP Biomedicals

Description: Product is the lyophilized powder of human IgG and buffer salts. All blood products should be treated as potentially infectious. Source material from which this product was derived was found negative when tested in accordance with current FDA required tests. No known test methods can offer assurance that products derived from human blood will not transmit infectious agents. The total protein is determined using the Biuret procedure, with bovine albumin as the standard. Each vial is overfilled by approximately 5 percent so that a minimum of 500 mg of human IgG is obtained upon reconstitution.

UOM: 1 * 50 mg

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Catalog Number: (ICNA0855503)

Supplier: MP Biomedicals

Description: This product is the lyophilized powder of fluorescein-5-isothiocyanate (FITC "Isomer I")-conjugated goat IgG fraction to mouse IgG (no cross to rat) and buffer salts. The total protein is measured using the Biuret procedure with bovine albumin as the standard; F/P ratio is calculated using absorbance at 491.5nm. Antibody titer of the IgG fraction is standardized by equivalence-point precipitation. The IgG fraction is tested for purity and specificity at 40 mg/mL using immunoelectrophoresis; No trace of albumin is detected. Antibody activity to rat IgG or mouse non-immunoglobulin serum proteins is not present.

UOM: 1 * 2 mL

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Catalog Number: (ICNA0855042)

Supplier: MP Biomedicals

Description: The IgG fraction is prepared from the specific rabbit antiserum by delipidation, ammonium sulfate fractionation and anion exchange chromatography. The resulting IgG fraction is dialyzed into 0.02M sodium phosphate, 0.14M sodium chloride, pH 7.3, adjusted to standard titer, filtered through a 0.22 µm filter, vialed and lyophilized. No preservative is added.

The total protein is measured using the Biuret procedure, with bovine albumin as a standard. Hemagglutination titer is standardized with an in-house control by measurement of agglutination end-point with 10% human red blood cells. Each IgG fraction is tested for purity at a minimum of 40 mg/ml using immunoelectrophoresis. The product is mostly rabbit IgG; no trace of albumin is detected.

UOM: 1 * 5 mL

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