Products & Reviews

ELISA for the quantitative determination of IgG Antibodies to SARS-CoV-2 Spike S1 protein in mouse serum and plasma. Accurate, specific detection with reproducible results.

Inserts are available preassembled with a polymer bottom spring or patented Top Spring™. The polymer spring acts as a shock absorber that protects against breakage if the needle bottoms out. The conical design permits complete sample removal. The Step Insert sits precisely in the neck of the vial, thus eliminating the need for metal or plastic springes.

This PYREX® general purpose condenser can be used for either distillation or extraction. Although the condensing area per unit length of the 200mm long jacket is low, the large capacity water jacket gives efficient cooling. Condenser tubulations are approximately 10mm O.D. The adapter end is tooled for uniform stopper fit, accommodating a No. 3 rubber stopper.

CANNON high viscosity standards cover viscosity ranges of particular interest for asphalt and polymer viscosity determinations. See ASTM D2170, Kinematic Viscosity of Asphalts (Bitumens) and D2171, Viscosity of Asphalts by Vacuum Capillary Viscometer. Lot specific kinematic viscosity data in mm²/s (cSt) and dynamic viscosity data in mPa·s (cP) is provided with each standard as appropriate.

Shimadzu introduces a new generation of FTIR instruments in the infrared product line with the IRPrestige-21. This new instrument is a conception for high sensitivity as well as for broad applications in the research and development area. The IRPrestige-21 is an outstanding addition to the already existing FTIR product line, which is suitable for general laboratory applications.

The Octet® Anti-Glutathione-S-Transferase (GST) Biosensors are designed for quantitation and kinetic characterization of GST-tagged biomolecules. Octet® GST Biosensors are offered in a tray format. Each tray contains 96 biosensors. Larger orders include discounts. The 5-tray pack represents a 10% per tray discount; 20-tray case represents a 20% per tray discount.

Octet® AHQ biosensors provide a rapid method for precise quantitation of human immunoglobulins from crude lysates and cell culture supernatants. Factory immobilization of an anti-human IgG antibody onto the biosensor surface enables direct detection of human IgG analytes with minimal sample handling and facilitates sample quantitation from cell culture screening through downstream purification development.

Carbohydrates such as glucose, fructose and maltose are used to adjust the osmotic pressure of the formulation. Starches and cellulose are used to increase the viscosity of water. Hydroxyethyl cellulose is one of the most commonly used water thickeners in cosmetics. Alfa Chemistry can supply high-quality functional carbohydrates to cosmetic companies looking to create innovative skincare products.

As a leading provider of peptide synthesis services, Alfa Chemistry can supply high-quality beauty peptides to cosmetic companies looking to create innovative skincare products. Our beauty peptide product line focuses on specific skin concerns, and our experienced chemists use state-of-the-art facilities and quality control measures to ensure the safety and purity of our peptides.

As a leading product R&D, production and sales integration company in peptide, Alfa Chemistry supplies high quality of hydrolyzed protein peptides, fish collagen peptide, marine fish oligopeptide, oyster peptide, sea cucumber Peptide, pea peptide, soy peptide and walnut peptide. And they can be used in food, beverage, liquid dairy products, medicine and health care products.

Alfa Chemistry provides synthetic peptides with a wide range of labels, scales, purities and delivery time options to meet your research needs. We ensures that each custom peptide is triple checked for quality via both mass spectrometry(MS) and high performance liquid chromatography (HPLC) analyses after each step during peptide purification and quality control (QC) procedures.

75cm2 available growth area Manufactured from optically clear virgin polystyrene Ultra-Low Attachment surface features a covalently bound hydrogel layer that effectively inhibits cellular attachment and minimizes protein absorption, enzyme activation, and cellular activation Surface is non-cytotoxic, biologically inert, and nondegradable Lot numbers for ease in traceability 100% integrity tested Sterilized by gamma irr…

(This is suggested replacement for 3056.) Secure stacking provides stability from accidental tips or spills, and protection against contamination (canted neck flasks) Nonpyrogenic tested to less than 0.1 EU/ mL Volumetric graduations and writing patch Vented caps incorporate a 0.2 µm hydrophobic membrane for optimal gas exchange while protecting against contamination Growth area and volume are nominal

(This is suggested replacement for 3276.) Secure stacking provides stability from accidental tips or spills, and protection against contamination (canted neck flasks) Nonpyrogenic tested to less than 0.1 EU/ mL Volumetric graduations and writing patch Vented caps incorporate a 0.2 µm hydrophobic membrane for optimal gas exchange while protecting against contamination Growth area and volume are nominal

(This is suggested replacement for 3001.) Secure stacking provides stability from accidental tips or spills, and protection against contamination (canted neck flasks) Nonpyrogenic tested to less than 0.1 EU/ mL Volumetric graduations and writing patch Vented caps incorporate a 0.2 µm hydrophobic membrane for optimal gas exchange while protecting against contamination Growth area and volume are nominal

250 mL beaker, with spout, manufactured with uniform wall thickness, offers optimum balance between thermal shock resistance and mechanical strength. For convenience, these beakers have a double graduated metric scale to indicate approximate content and an extra large marking spot. For PYREX® beaker covers, see Catalog No. 9985 or No. 9990. Reference: ASTM E-960.

600 mL beaker, with spout, manufactured with uniform wall thickness, offers optimum balance between thermal shock resistance and mechanical strength. For convenience, these beakers have a double graduated metric scale to indicate approximate content and an extra large marking spot. For PYREX® beaker covers, see Catalog No. 9985 or No. 9990. Reference: ASTM E-960.

This PYREX® general purpose condenser has a 24/40 Standard Taper inner joint at the bottom with a drip tip. Although the condensing area per unit length of the 400mm long jacket is low, the large capacity water jacket gives efficient cooling. They can be used for either distillation or extraction. Condenser tubulations are approximately 10mm O.D.

This PYREX® general purpose condenser has a 24/40 Standard Taper inner joint at the bottom with a drip tip. Although the condensing area per unit length of the 500mm long jacket is low, the large capacity water jacket gives efficient cooling. They can be used for either distillation or extraction. Condenser tubulations are approximately 10mm O.D.

These PYREX® Graham condensers have a high surface area per unit length of the 300mm long jacket with a 24/40 Standard Taper outer joint at the top and a 24/40 Standard Taper inner joint at the bottom with a drip tip. They are primarily used in vacuum distillations. Condenser tubulations are approximately 10mm O.D.

These small 30 mL PYREX(r) Kjeldahl flasks, without tooled neck, is suitable for multiple microdigestions. They take a No. 0 rubber stopper. Care must be taken to ensure the bottoms of the flasks do not come in contact with the heating elements. Most Kjeldahl equipment manufacturers have ring supports for this purpose. -Reference: ASTM E-147.

These pipets are color-coded by size for easy identification and sorting. Colored graduations are enameled onto the glass. The top end of 5 mL to 25 mL sizes is constricted (Mohr type). They are ­calibrated “To Deliver” their total capacity without blow-out.Do not pipet by mouth. We suggest using a mechanical pipetting device. Reference: ASTM E-1293.

These sterile disposable 1 mL PYREX® serological pipets are calibrated (TD) with blow-out. They are packed in a flip-top canister to keep the pipets racked. These pipet canisters come sealed in polyethylene bags for sterility. New I.S.O. color-coding is printed directly on the tear strip for easy identification by size. Reference: ASTM E-714.

These sterile disposable 10 mL PYREX® serological pipets are calibrated (TD) with blow-out. They are packed in a flip-top canister to keep the pipets racked. These pipet canisters come sealed in polyethylene bags for sterility. New I.S.O. color-coding is printed directly on the tear strip for easy identification by size. Reference: ASTM E-714

These sterile disposable 5 mL PYREX® serological pipets are calibrated (TD) with blow-out. They are packed in a flip-top canister to keep the pipets racked. These pipet canisters come sealed in polyethylene bags for sterility. New I.S.O. color-coding is printed directly on the tear strip for easy identification by size. Reference: ASTM E-714.