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Wednesday, September 11, 2019

When storing the column, the column should be filled with acetonitrile or methanol, and the column joint should be tightened to prevent the solvent from evaporating and drying. It is absolutely forbidden to leave the buffer solution in the HPLC columns for an overnight or longer period of time...

Tuesday, September 10, 2019

1. Advantages and disadvantages of commonly used extraction solvents Acetonitrile: easy to salt out; compatible with LC/MS; difficult to concentrate Acetone: not easy to salt out; easy to volatilize, concentrate Ethyl acetate: immiscible with water; less extraction of impurities;...

Tuesday, September 10, 2019

According to the separation mechanism of substances, Chromatography can be divided into adsorption chromatography, distribution chromatography, ion exchange chromatography and the like. The operation mode of the adsorption thin layer chromatography refers to that the adsorption capacity...

Tuesday, September 03, 2019

Hawach hydrophobic polytetrafluoroethylene(PTFE) pleated filter cartridge has high porosity, high flow rate, and strong bacterial interception ability. Unique PTFE and polypropylene materials make it have wide chemical compatibility and biological safety. Hawach PTFE pleated filter...

Tuesday, September 03, 2019

The basic principle of SPE cartridges is that the liquid sample is made to pass through the adsorbent to retain the tested substance, and then the impurities are washed away with appropriate strength solvent, and then the tested substance is eluted with a small amount of good solvent...

Friday, August 30, 2019

Reduced.bore.DIN 3202 f6 Threaded.ends: DIN259/2999.JIS. 130202/1302203.Internal.entry. blow-out.proof.stem Material: .CF8M.CF8.CF3M.WCB Pressure.rating: .1000PSI.WOG Pressure.test: .API.598.Lever.handle Penglai Huande steel valve CO.,LTD is a famous global valve manufacturer who...

Thursday, August 22, 2019

It is greatly necessary to mention the Salmonella In Food for Import And Export-Membrane Filter Screening Method where the vacuum flask is introduced. For customers to learn about the device better, related information is as follows. - About the salmonella - Salmonella can be divided...

Thursday, August 22, 2019

QuEChERS is an extraction method for pesticides in fruits and vegetables. It is also a cleanup method we use to remove sugars, lipids, organic acids, proteins, pigments, and excess water. After the publication of the original QuEChERS method in 2003, QuEChERS has been practiced all...

Saturday, August 17, 2019

Quantity : 500kg

A functional insulator coating to protect insulators in pollution area, such as industrial area, coastal area and other extreme environmental conditions, also can be used in normal environmental conditions. RTV-II/ PRTV is a one part and new type Room Temperature Vulcanizing RTV silicone...

Saturday, August 17, 2019

Quantity : 500kg

Leveraging upon our experience, we have become a prominent Anti-Algae & Anti-Fouling Coatings (RTV-ZB) Manufacturer, Exporter and Supplier in China and rest of the world. Applicable for flash-over & algae prevention, our well-formulated anti algae coating and anti fouling...

Friday, August 16, 2019

According to the given principles of Hawach, there are three general sorts of syringe filter products specially designed for different customers' requirements. FILTSTAR Series With a high class, transparent color and imported membrane, the FILTSTAR is obviously distinguished with three standards...

Thursday, August 15, 2019

Glass solvent filters are used for solvent particle removal and water phase mobile phase filtration. All components of glass solvent filters in contact with solvents are made of chemically inert glass or PTFE materials, which are used in combination with regenerated cellulose (RC)...

Thursday, August 15, 2019

Bottle-top dispenser, also known as bottle-top distributor and bottle-top pipette, is an instrument for accurately measuring liquid chemicals. It is generally divided into automatic bottle-top separator, continuous bottle-top separator, glass separator, bottle-top separator, bottle-top...

Thursday, August 15, 2019

The similarities FLASH and SPE are all column chromatography separation technology. FLASH is a fast separation mode for preparative chromatography, using optimized pre-packed low and medium pressure columns for chromatographic separation. The separation mechanism, stationary phase...

Wednesday, August 14, 2019

Quantity : 1 - Price : 5,96 €

Pvdf acp aluminum composite panel for Building meterials -Light weight, high strength, extreme rigidity, superior impact resistance, -excellent surface flatness and smoothness , -heat insulation, sound insulation, fire-resistance, -acid-resistance, alkali-resistance, good weatherproofing...

Wednesday, August 14, 2019

Quantity : 1 - Price : 5,89 €

Pvdf acp aluminum composite panel for Building meterials -Light weight, high strength, extreme rigidity, superior impact resistance, -excellent surface flatness and smoothness , -heat insulation, sound insulation, fire-resistance, -acid-resistance, alkali-resistance, good weatherproofing...

Wednesday, August 14, 2019

Flash column chromatography is an alternative to long column chromatography developed in 1978. This method aims to separate the components from the mixture and thereby purify it. It is built from existing long column chromatography techniques and is time-consuming and often unsatisfactory...

Monday, August 12, 2019

Solid phase extraction principle Solid phase extraction is a separation technique that combines selective retention, selective elution, and the like. When a complex sample solution passes through the sorbent, the sorbent selectively retains the aimed compound and a small number of...

Thursday, August 08, 2019

Flash columns adopt high-capacity silica gel for precise filling, which has very excellent separation and purification performance. The specific surface area of high-capacity spherical silica gel is 40% higher than that of ordinary spherical silica gel, and the sample loading is twice...

Wednesday, August 07, 2019

The principle of vacuum filtration is forming the negative pressure to drive the filtration at the outlet of the filtrate. This kind of filtration according to the forms of operation is divided into two types: batch operation and continuous operation. The vacuum filtration with batch...

Wednesday, August 07, 2019

Food safety testing is a major issue related to people's livelihood. In recent years, the QuEChERS method has been widely used in the pretreatment of food safety detection samples. In addition, the method has been applied to trace analysis. QuEChERS Application The international application...

Wednesday, August 07, 2019

Each analyst needs filter paper, which is a product with high consumption in the laboratory. Filter paper is commonly used in analytical laboratories as a filter medium to separate the solution from the solid. Basic introduction The paper is loose and has strong absorption performance to liquid...

Tuesday, August 06, 2019

Quantity : 100000TM - Price : 50USD

Uses of Diethanolamine Diethanolamine similar to triethanolamine (T775580) is used as a surfactant. It also has the potential to be a corrosion inhibitor by means of chemisorption. Definition of Diethanolamine ChEBI: A member of the class of ethanolamines that is ethanolamine having...

Tuesday, August 06, 2019

Quantity : 100000TM - Price : 50USD

CAS: 123-42-2 Uses of Diacetone (DAA) DAA is used as a raw material for high boiling point solvents, paint diluents, wood stains, rust removers, and dyes, etc. Diacetone boiling point is 166 °C (331 °F; 439 K). DAA is used as a dye raw material and resin solution. It can be used as...

Tuesday, August 06, 2019

Quantity : 100000TM - Price : 50USD

Application of Cyclohexanone It is the raw material for the production of caprolactam and adipic acid; used as the solvents and diluent agents of paints, inks, synthetic resins and synthetic rubber; also used as the leather degreasing agent. Used as the organic cyclohexanone solvent...

Tuesday, August 06, 2019

Membrane syringe filters are used to clarify small-volume sample solutions generally. The housing is well-designed to spread the sample solution over the entire surface of the membrane so that maximum membrane capacity is used. And the construction without any glue or binders helps...

Tuesday, August 06, 2019

Quantity : 100,000 MT - Price : 50USD

CAS number: 103-11-7 1. 2-Ethylhexyl acrylate is used in the manufacture of coatings, adhesives, fiber and fabric modification, processing aids, leather processing aids, etc. It is also used as a polymerizable monomer, soft polymer, and a plasticizer in copolymers. It is applied as a solvent...

Monday, August 05, 2019

Vacuum Filtration is a device for accelerating water filtration by negative pressure caused by air extraction. It's a filtering product that most lab customers will be used for suspension detection in water extraction filtration, microbial limit detection extraction filtration, chromatographic...

Saturday, August 03, 2019

Quantity : 100,000 MT - Price : 50USD

CAS NO.: 868-77-9 - 2-Hydroxyl Ethyl Methacrylate (HEMA) is mainly used for the modification of resins and coatings. Its copolymerization of other acrylic monomers can produce acrylic resins with active hydroxyl groups in the side chains, perform esterification reaction and cross-linking...

Thursday, August 01, 2019

The flat sheet ceramic membrane is a new type of high temperature plate porous ceramic membrane, which is prepared by high temperature sintering process using inorganic materials such as alumina. Compared with the organic film, ceramic flat membrane has the advantages of good chemical stability...