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Samedi 15 juin 2019

What is SPE Cartridge? The term SPE cartridges is short for Solid Phase Extraction cartridge. It is a kind of sample preprocessing equipment (extract, separate and concentrate) which is developed from the chromatographic column. SPE cartridge is mainly used for preprocessing of the...

Vendredi 14 juin 2019

The boric oxide can make the glass resistant to extreme temperatures, improves its resistance to chemical corrosion, and assures the integrity of the content. As the very popular material in the manufacture of scientific instruments, borosilicate glass is a type of glass including...

Vendredi 14 juin 2019

As a simple and fast absorption chromatography technique for the routine purification of organic compounds, flash chromatography is developed for the daily purification of reaction products in the lab, which is low costs and achieves separations of samples (0.01-10.0 g weight) in short time...

Vendredi 14 juin 2019

Capsule filter, which is also called disposable filter, is composed of the outer shell and the filter. The outer shell is usually made of high temperature polypropylene material. This kind of polypropylene material on the surface of the capsule filter does not contain adhesives and...

Vendredi 14 juin 2019

a. Application PP membrane filter is used to filter out bacteria and particles from the liquid in the pharmaceutical, electronic and biological manufacturing industry, brewing, clocks and watches, medical oil, lubricating oil, the fuel oil industry, and a scientific laboratory. Generally...

Vendredi 14 juin 2019

Hawach introduced the properties and application range of HPLC column stationary phase in the silica gel matrix. Silica gel matrix: Silica gel, weakly acidic, has a strong memory, used to separate non-polar, weakly acidic compounds, oils, etc.; C18, a silica-based uncapped reversed-phase...

Vendredi 14 juin 2019

By revolutionizing liquid handling in the modern lab, the invention of electronic pipettes is one of the greatest advances in pipetting technology. First, for scientists who don't have plenty of time in the lab, any advantage that can save time on pipetting is welcomed. Divided into...

Jeudi 13 juin 2019

NH2 HPLC columns can be used in the positive phase or in the negative phase, but it should be noted that the positive phase solvent and the negative phase solvent are usually not mutually soluble. New NH2 HPLC columns are preserved in the positive phase environment under normal circumstances...

Jeudi 13 juin 2019

Introduction of Hawach scientific filtration manifold Multifilter is designed and manufactured for the simultaneous filtration of multiple samples. At present, when the laboratory carries on the filtration to the solution, generally USES the glass material sand core filtration device...

Jeudi 13 juin 2019

Package 1 QuEChERS extracting pesticide residues from plants Extraction box: 50 ml centrifuge tube + AOAC/EN salt pack 2 kinds of buffer salts: General buffer salt for phase-separation and pH-adjustment; Anhydrous magnesium sulfate completely separates water in the matrix from the...

Jeudi 13 juin 2019

A. Cellulose Extraction Thimbles 1. 60% high purity grade polar fiber+40% refined cotton fiber no any binding agents which make it has stronger mechanical strength and stronger retention 2. 6 wall thickness optional to meet different retention and wet strength, dry strength increasing...

Jeudi 13 juin 2019

The bottle-top dispensers are a useful tool to dispense reagents, media, chemicals, and solutions from bottles, containers, and into other vessels. With components of filling tube, piston or pump, discharge valve, and discharge tube, the bottle-top dispenser is a popular chemical...

Jeudi 13 juin 2019

Hawach Scientific work for filter paper for more than 16 years, we are happy to see our products exported to the United States, UK, Germany, Dubai, Thailand, South Korea, and other countries. We are not satisfied with our present achievement, this year our R&D department have good news...

Jeudi 13 juin 2019

It's important to know the way to choose the right syringe filter for filtration. And the membrane materials used for manufacturing syringe filters often determine your choices. Let's learn the different types of membrane materials for filtering in the lab. As the most popular membrane...

Jeudi 13 juin 2019

In order to evaluate water quality, laboratory workers need to analyze the chemical constituents of water. At the same time, they have to consider the interactions between each constituent and the factor of photolysis when choosing the sample vial. It is better to shorten the sample's...

Mercredi 12 juin 2019

Hawach introduces pipettes from the pipetting speed of the pipette and precautions during storage. First, the rate of liquid absorption. It is often seen in the laboratory that in order to “improve efficiency”, the user quickly releases the thumb during aspiration, which causes the...

Mercredi 12 juin 2019

A few days ago, I wrote a summary of the filter membrane. Many customers said that no product had no truth. So what I wrote today is a product that needs to be used in combination with microporous filter membrane – the solvent filter device. Technical parameters The solvent filter...

Mercredi 12 juin 2019

Hawach will introduce cellulose extraction thimble from six technical parameters: material, temperature and forming time, DOP retention, size selection, porosity, and fitting accuracy. ●Material The consistency of component content of extraction thimbles made of different materials...

Mercredi 12 juin 2019

Hawach will introduce cellulose extraction thimble from six technical parameters: material, temperature and forming time, DOP retention, size selection, porosity, and fitting accuracy. ●Material The consistency of component content of extraction thimbles made of different materials...

Mercredi 12 juin 2019

When filter paper is used in experiments, it is mostly used together with filter funnel and Brinell funnel. The filter papers should be folded into a suitable shape before using. But it should be noted that do not over fold, because this will lead to the breakage of filter paper....

Mardi 11 juin 2019

Quantité : 100000 mtr - Prix : USD 4.50/mtr, FOB In

Dear Sir/Madam, (HS 854411) We would like to offer: electrical cable. Consist of: low, medium and high voltage cables, fire retardant cable, etc.. For power transmission and distribution networks in compliance with international standards, such as: IEC, ASTM, JIS, SNI, BS, NZS, etc...

Mardi 11 juin 2019

Cellulos e acetate (CA) syringe filters Features: Cellulose acetate (CA) syringe filter has good hydrophilicity, low protein adsorption, and no nitrate. Applications: (1) groundwater filtration; (2) biological and clinical liquid filtration. Mixed cellulose (MCE) syringe filters Features...

Mardi 11 juin 2019

Overview To determine the physical and chemical parameters of natural water, laboratory workers always use polyethylene and borosilicate glass sample vials for common sampling. Furthermore, it is better to use chemically inert material. The frequently-used sample vialshave multiple...

Mardi 11 juin 2019

Developed in the 1970s, flash column chromatography is the method of isolating and purifying a component from a mixture by passing the sample through the flash column filled with a gel. The inventors of flash column chromatography were using medium pressure chromatography and short...

Mardi 11 juin 2019

Hawach Scientific Nylon membrane has natural hydrophilic, wide chemical compatibility, without surfactant. Nylon folding filter elements in the production process strictly control the production environment to ensure the quality and cleaning of the filter elements. The overall sealing...

Mardi 11 juin 2019

Overview of The Technology Under the help of various permeable filter membranes, membrane technology provides engineering strategies to transport selected substances between two different portions. To speak in a general way, filter membranes technology is utilized in processing separating...

Mardi 11 juin 2019

The installation of the HPLC column should be carried out in the following three steps: a. Unpack the HPLC column and confirm the type, size, date of manufacture, and solvent stored in the column. b. Unscrew the sealing plug from the joints at both ends of the column and put it back...

Mardi 11 juin 2019

Solid phase extraction (SPE) is a separation process by which compound that is dissolved or suspended in a liquid mixture, thereby being separated from other compounds in the mixture according to their physical and chemical properties. There are 4 general functions as below: 1.Matrix...

Samedi 08 juin 2019

PRODUCT PARAMETERS Model: YX-2040/CFXB-400A Capacity: 2.0L Power: 400W Body material: plastic Inner pot: Non-stick aluminum Color: blue/pink/white/green Function: cook rice/porridge/soup/cake/steam egg... Color box size: 250*250*275mm Outer box size: 525*525*585mm 20'GP: 1400PCS 40'GP...

Samedi 08 juin 2019

PRODUCT PARAMETERS Model: YX2040B Capacity: 2.0L Power: 500W Body material: plastic Inner pot: Non-stick aluminum Color: blue/white Function: cook rice/porridge/soup/cake/steam egg... Color box size: 300*285*295mm Outer box size: 610*580*600mm 20'GP: 1120PCS 40'GP: 2240PCS 40'HQ: 2720PCS QTY/CTN...