RETENTION - 1149 Annonces

Vendredi 30 août 2019

Quantité : 100pcs - Prix : 5.05usd

- les flacons de 20 mm et l'aluminium sertissage assurer une bonne étanchéité est faite pour cette application exigeante - les flacons sont fabriqués de la classe a ou de type 1 de classe b - verre borosilicaté de type 1 et comprennent une écrire en patch pour l'identification...

Vendredi 16 août 2019

Quantité : 40HQ - Prix : 0.09-0.40USD/PC

Chemical packaging bags could be made of polypropylene woven fabric only, but for those chemical material which needs to be stored or transported under dry and leakage-proof conditions, Kraft paper laminated woven pp bags would be a more suitable packaging material choice. Pp woven...

Vendredi 16 août 2019

NH2 HPLC columns refer to the chromatographic columns that use silica gel as matrix carrier to bond amino groups. They are usually used for the analysis of carbohydrate compounds, and the mobile phase is usually methanol, acetonitrile and buffers salt solution. - The cleaning method...

Mercredi 14 août 2019

Quantité : 25kg - Prix : FOB Qingdao 2.4-2.9$

Description of Food Grade CMC Sodium carboxymethyl cellulose (CMC/cellulose gum) is kind of cellulose ether, can easily soluble in cold and hot water, with maximum yield, most widely and conveniently used among all cellulose products. The main raw material of CMC is refined cotton and wood pulp...

Mercredi 14 août 2019

Physical properties of the chromatographic column could affect the performance of C18 HPLC columns. - Performance factors of C18 HPLC columns: - Silica gel purity Class A silica gel has high residual silica hydroxyl with a negative charge and high metal content on the acidic surface...

Mardi 13 août 2019

Filtration is a kind of physical changes which separate solid impurities from the liquid through porous filter media, only fluid can pass by the porous filter media. So the degree of retention determines the separation efficiency. Hawach provides various options to satisfy every laboratory...

Lundi 12 août 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...

Vendredi 09 août 2019

As a matter of fact, the quartz fiber extraction cannot be accessible in China, so Hawach has to design the other two products—cellulose and glass fiber exaction thimbles whose relevant parameters are respectively introduced as follows. Cellulose Exaction Thimble It is composed of...

Mercredi 07 août 2019

The thimble is utilized in extraction, so the dissolution rate of impurities is a comparatively deductive target. For the deficient data of cellulose extraction thimbles, the mental content in glass fiber ones has to be tested, and respective results of different sizes are listed...

Vendredi 02 août 2019

Usually, the sample contains something that is not of interest to the analyst. Salt, lipids, lipid-containing substances, humic acid, hydrophobic proteins, and other biological substances are some substances that may interact with the HPLC column in use. These substances have less...

Jeudi 01 août 2019

There are two different cases of retention time: retention time drift and retention time fluctuations. The former means that the retention time changes only in one direction, while the latter refers to the fluctuation of the retention time without a fixed law. It is often helpful...

Mercredi 31 juillet 2019

Solid phase extraction (SPE), developed in the 1970s, can replace the traditional liquid-liquid extraction in many fields and has been applied more and more widely in the laboratory. The common solvent of SPE Hexane, isooctane, tetrahalide carbon, trihalomethane, dihalomethane, tetrahydrofuran...

Samedi 27 juillet 2019

Technical data HP Series Performance characteristics：High energy, high power series(high power Capacitor) Typical application：RAM、Detonator, car recorder, smart meter, vacuum switch, digital camera, motor drive, clock circuit, UPS, toy, program-controlled switch, etc. Series specification...

Samedi 27 juillet 2019

Technical data HP Series Performance characteristics：high energy Capacitor, high power series Typical application：RAM, Detonator, car recorder, smart meter, vacuum switch, digital camera, motor drive, clock circuit, UPS, toy, program-controlled switch, etc. Series specification sheet：...

Vendredi 12 juillet 2019

Cellulose Exaction Thimble For the cellulose exaction thimble (CET), parameters are mainly focused on the constitution, heating temperature. CET is usually made out of high-grade cellulose or seamless noble cellulose and lines of cotton, excluding any binding elements, which means...

Jeudi 11 juillet 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Jeudi 11 juillet 2019

With the development of society and technology, chromatographic analysis theory has also been developing rapidly. HPLC column has now been widely applied in every field of laboratory analysis. HPLC column gathers function of both detection and separation. With the right choice, use...

Mercredi 10 juillet 2019

Cellulose extraction thimbles are widely used in Soxhlet extractors. Soxhlet extraction is a widely used technology to analyze lipids or pesticides in food and soil materials and others. Soxhlet extraction is the continuous extraction of the required components in the solid mixture...

Mardi 09 juillet 2019

The reversed-phase HPLC columns may be repeatedly injected into a sample containing a strongly retained material, and in particular, the sorbent components such as large molecular weight or hydrophobic biological flow proteins and strong alkaline substances may be adsorbed on the silica medium...

Mardi 09 juillet 2019

Polymeric MCX SPE cartridges are used to extract strongly alkaline compounds. MCX is a mixed strong cation exchange adsorbent obtained by bonding sulfonic acid groups on highly crosslinked PS/DVB surface. It has both reverse phase and cationic exchange retentive properties and good...

Lundi 08 juillet 2019

First, the continuous polypropylene long fibers produced by the melt-blown process are wound with polypropylene as raw material. Second, high filtration accuracy, large flow rate, uniform structure, large contamination capacity, and long service life. Third, good chemical compatibility...

Vendredi 05 juillet 2019

1. Product No., for example BIO-1. 2. Pore size and flow rate, The bigger pore size, the quicker flow rate. Fast: 60-100S/100ML @ 80-120μm Medium: 100-160 S/100ML@30-50μm Slow：160-200 S/100ML @ 1-3 μm But filter paper is different from filter membrane, the pore size cannot be a certain value...

Jeudi 04 juillet 2019

Activation, also known as solvation, add a suitable solvent to expand the functional groups on the adsorbent and remove possible interferences on the adsorbent. Equilibrium, remove the activated solvent to create a suitable solvent environment for sampling. Usually, use the same solvent...

Jeudi 04 juillet 2019

Manufactured from the same raw materials as the ashless grades, the qualitative filter paper is suited for ordinary filtration when we need to determine materials by using qualitative analytical techniques in the lab, with the features of fast flow rate due to their structure. Qualitative...

Mardi 02 juillet 2019

1. Product No., for example BIO-1. 2. Pore size and flow rate, The bigger pore size, the quicker flow rate. Fast: 60-100S/100ML @ 80-120μm Medium: 100-160 S/100ML@30-50μm Slow：160-200 S/100ML @ 1-3 μm But filter paper is different from filter membrane, the pore size cannot be a certain value...

Vendredi 21 juin 2019

Normally SPE cartridge has two basic adsorption modes: target compound adsorption mode, impurity adsorption mode; 5 operation modes: gravity operation, manual positive pressure, centrifuge, negative pressure and positive pressure mode. Now let's review the whole process step by step...

Jeudi 20 juin 2019

Suitable for Soxhlet-type and other similar devices, the extraction thimbles are used to adapt a sample of solid material to extract certain components out, with the addition of sufficient and appropriate solvent. Cellulose extraction thimbles which are made of high-quality alpha...

Mercredi 19 juin 2019

THAIFOOD-N (Non Phosphate) is a mixture of food grade sodium/calcium salts and food materials in a ratio to provide excellent performance in reducing drip loss, improve moisture retention, prevent freeze burn, suitable for flavor and texture improvement of seafood products. Packing...

Mercredi 19 juin 2019

Hawach Scientific Co., Ltd is main laboratory supplies and industrial filter manufacturing enterprises, from raw materials and production process to ensure the maximum quality monitoring, each batch of a strict quality testing and product warranty. At present, users are distributed...

Mercredi 19 juin 2019

Hawach scientific takes filtration technology as its core and manufactures high-quality filtration products. Our products after years of research and development, the use of advanced technology and first-class production equipment, to provide customers with all kinds of high-quality...