ADSORPTION - 362 Annonces

Friday 13 December 2019

Filter cartridge supplied by Hawach Scientific is suitable for a variety of filtration applications. Its special design can overcome the temperature and chemical compatibility limitations of traditional fiber media. And it will offer really high-temperature resistance and can withstand...

Wednesday 11 December 2019

Membranes filter is frequently used for purity during clarification and sterilization procedure, it is often fit for general biological filtration, particle retention, and removal for aqueous solutions. Membranes filter provided by Hawach scientific are available in two types: one is roll type...

Monday 09 December 2019

SPE cartridge A solid-phase extraction device is a physical extraction process involving a liquid phase and a solid phase. In the solid-phase extraction process, the adsorption of the solid relative analyte is greater than that of the sample mother liquor. When the sample passes through...

Tuesday 26 November 2019

Quantité : 100000pcs/ - Prix : 1.5~4800 USD

Dongjin MF Motorcycle battery is engineered to protect against seepage and corrosion, deliver high cranking power, even when the weather's dealing its worst. With the lead-calcium technology and the AGM used, our Maintenance-free VRLA type motorcycle battery assumes really sealed...

Friday 01 November 2019

Quantité : 100000pcs/ - Prix : 1.5~4800 USD

Are you looking for 12v 4ah motorcycle battery ? Dongjin MF Motorcycle battery is engineered to protect against seepage and corrosion, deliver high cranking power, even when the weather's dealing its worst. With the lead-calcium technology and the AGM used, our Maintenance-free VRLA...

Saturday 12 October 2019

The core component of the membrane filter is the membrane. It is a kind of thin film which is prepared on the microporous bearing layer with smaller holes. There are various materials for making the membrane, including organic membrane and inorganic membrane. As the core component...

Wednesday 09 October 2019

Flash column chromatography is an easy and fast method to separate the complex mixtures. It can not only make the separation effect better but also shorten the time. How to put the sample into the flash column is of high importance in the preparation process of flash column chromatography...

Wednesday 09 October 2019

Hawach Scientific co., LTD. is a professional technology company integrating analytical chemical product development, manufacturing, sales, and service, Since its establishment, the company has maintained a high speed and steady pace of development, along with scientific and technological...

Monday 30 September 2019

The purifying agent holds an important position in the QuEChERS pre-treatment method. An appropriate selection and application of it would be necessary for the users to improve the efficiency of purification and accuracy of the sampling detection result. Selection of purifying agents...

Wednesday 25 September 2019

General requirements for adsorbents: large surface area and certain adsorption capacity. Does not chemically change with the developing agent, does not react with or catalyze, decompose or associate with the substance to be separated, and the particles are uniform. Silica gel and...

Monday 23 September 2019

The reason for the QuEChERS matrix effect in the liquid state is generally considered to be due to the non-volatile components in the matrix and the substance to be tested, which competes in the ionization process. The matrix effect in gas phase temperament is generally attributed...

Monday 23 September 2019

Let's take a look at two common adsorbents for adsorption chromatography. Polyamide The polyamide adsorbent can be divided into nylon 6 (polycaprolactam) and nylon 66 (polyhexamethylene adipamide), which are hydrogen bond adsorption and semi-chemical adsorption. There are many amide...

Friday 20 September 2019

Syringe filter can be used in the analysis of high performance liquid chromatography and IC. It is an important step in sample pretreatment to filter sample solution. The syringe filter with high quality is produced by using the most advanced detection means and production technology...

Friday 20 September 2019

Hawach Scientific company specializes in the production of PES filter membrane, stable quality, products exported to Europe, North America, and other countries. We have more than 16 years of experience in the filtration industry. Pore size : 0.1um /0.22um/0.45um/0.65um/0.8um/1.2um Diamter ...

Friday 20 September 2019

Solid phase extraction is essentially a liquid chromatographic separation. The main separation mode is the same as that of liquid chromatography. It can be divided into normal phase (the polarity of the adsorbent is greater than the polarity of the eluent), and the reverse phase (the...)

Thursday 19 September 2019

It is a liquid chromatography using a chemically bonded phase as a stationary phase, which is formed by chemically reacting an organic molecule to a surface of a carrier (silica gel) by a covalent bond to form a uniform, firm monolayer thin layer. The separation mechanism is both...

Wednesday 18 September 2019

Selection of scavengers The conventional QuEChERS method only uses PSA which is too simple single that can no longer meet the complex matrix samples examination experiments. GCB (graphitized carbon black) can effectively adsorb pigments, non-polar interferences such as sterol due...

Tuesday 17 September 2019

Adsorption chromatography uses the difference in adsorption capacity of substances in stationary phase adsorption to achieve separation of the mixture. The chromatographic process of adsorption chromatography is the process in which the mobile phase molecules compete with the material...

Tuesday 17 September 2019

Quantité : 100000pcs/ - Prix : 1.5~4800 USD

What is the Dongjing storage battery 12v4ah? Dongjin MF Motorcycle battery is engineered to protect against seepage and corrosion, deliver high cranking power, even when the weather's dealing its worst. With the lead-calcium technology and the AGM used, our Maintenance-free VRLA type...

Monday 16 September 2019

The extraction is divided into liquid phase extraction (LLE) and solid phase extraction (SPE). SPE technology is a column chromatography separation process. The technology is a combination of liquid-solid extraction and column liquid chromatography. The combination of this technology...

Friday 13 September 2019

Some samples (such as avocado, peanuts, olive oil, etc.) contain more fat. Due to the limited solubility of fat in acetonitrile, the recovery rate of some fat-soluble pesticides (such as HCB, DDT, etc.) is reduced. How to overcome the low experimental results caused by fat? You can...

Thursday 12 September 2019

As an important branch of chromatography, high-performance liquid chromatography (HPLC) has become an important application of separation and analysis technology in the fields of chemistry, medicine, industry, agriculture, commodity inspection, and law inspection. Features of high-performance...

Tuesday 10 September 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 03 September 2019

The mixed cellulose(MCE) membrane is made of refined nitrocellulose, added with the appropriate amount of cellulose acetate, acetone, n-butanol, ethanol, etc., which is hydrophilic, non-toxic and hygienic. The mixed cellulose membrane is a kind of porous membrane filtration material...

Tuesday 27 August 2019

CNC wood router is also called Furniture Production Line ,based on the ordinary CNC router, and mainly used to deal with woodworking products. And it is a CNC router machine 1325 solution for customized furniture production such as wardrobe, cabinets and office furniture . Especially...

Monday 12 August 2019

Syringe filter is a kind of filter connected to the front of the syringe. When the experimenters deal with the chromatographic samples with syringe filter, they should pay attention to avoiding bringing impurities in the process of filtration. One reason for the appearance of such...

Friday 09 August 2019

- Some Tips In QuEChERS D-SPE? - Why choose anhydrous magnesium sulfate as a water remover? In the d-SPE purification process, the moisture content plays a crucial role in the purification effect of PSA. The lower the moisture content, the better the purification effect of PSA. Experiments...

Thursday 08 August 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...

Thursday 08 August 2019

Most common SPE cartridges are injection syringes made of polyethylene, in which there are two plugs made of polypropylene or fiberglass, with a certain amount of chromatographic adsorbent (filler) between the two plugs. SPE cartridges without sieve plate 1. Avoid “non-specific adsorption” 2...

Tuesday 06 August 2019

The hydrophilic polyvinylidene fluoride membrane filter is commonly used for the purification and filtration such as tissue culture media, additives, and other sterilization filtration solvents, chemical raw materials, aseptic processing of reagents, and for filtration of high-temperature liquid...