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Monday, September 30, 2019

SPE is a kind of sample production technology which is more and more useful in which many problems related to liquid and liquid extraction could be avoided, such as the incomplete separation, non-quantitative recycle, the use of expensive and fragile glass vessels, massive organic...

Sunday, September 29, 2019

Hawach glass solvent filter is made of high-quality borosilicate glass, which can be used to filter various aqueous solutions, organic substances, and corrosive liquids. The glass Solvent filter is available in one liter and two liters and consists of a triangular liquid collection bottle...

Sunday, September 29, 2019

The cellulose extraction thimble is made of cotton fiber with high cellulose content, good mechanical strength and excellent retention. Particularly suitable for the reaction mixture, food, natural materials, paint, paint extraction of organic matter; paint pigment binder; gas powder and tar...

Friday, September 27, 2019

Ceramic Nanofiltration membrane is relatively recent membrane filtration system, with the purpose of softening and removal of disinfection by-product precursors such as natural organic matter and synthetic organic matter. More ultrafiltration membrane system details here! CHARACTERISTICS...

Friday, September 27, 2019

Nanofiltration (NF) or nanofiltration membrane technology is a relatively recent membrane filtration process used most often with low total dissolved solids water such as surface water and fresh groundwater, with the purpose of softening (polyvalent cation removal) and removal of...

Friday, September 27, 2019

The organic membrane is a material having a selective separation function, and when there is a driving force on both sides of the membrane (such as a pressure difference, a concentration difference, a potential difference, etc.), the raw material component selectively permeates the membrane...

Friday, September 27, 2019

The difference between Sample Vial Sample vial marketed by Hawach Scientific is of different performance and features. Snap top sample vial and crimp top sample vial are of 12 x 32 mm scale, 2ml amber vial, 11 mm snap top, and 2ml clear vial. Septa and cap for screw thread sample...

Friday, September 27, 2019

Non-Polar Interaction, the interaction between a non-polar functional group on a target compound and a non-polar sorbent, which is better reflected in a polar solvent environment, especially in a water environment. Also known as hydrophobic interactions, such as the interaction between...

Thursday, September 26, 2019

Hawach vacuum filtration is made of transparent polymer material polystyrene (GPPS), which uses a vacuum pump to provide pressure difference for large-scale filtration of tissue culture fluid and other laboratory fluid solutions. The sample throughput can reach several liters, and...

Thursday, September 26, 2019

Currently，extraction thimble falls into two types: one is cellulose extraction thimbles, another is glass fiber extraction thimble. Both of them are excellent at superior performance, consistent wall thickness, and smooth interior surface. Additionally, both of them has proven to...

Thursday, September 26, 2019

It is critical to identify any failure and properly maintain the bottle-top dispenser because it directly contacts with chemical reagents; otherwise, data precision will be greatly affected and safety accidents may even occur. Identification of tightness failures Most failures are...

Thursday, September 26, 2019

Quantity : 2000Ton - Price : 6~60 usd/KG

RTV-1 silicone is a condensed silicone rubber that is gradually cured from outside to inside by contacting with moisture in the air. It can be also called non conductive silicone sealant. RTV-1 silicone rubber are used in bonding, sealing, encapsulating photovoltaic module components...

Thursday, September 26, 2019

- Reversed-Phase Principle - The reversed-phase filler is a kindly of nonpolar filler such as C4, C8, C18 aliphatic chain which is bonded on the silica gel. Nonpolar or hydrophobic compounds are strongly reserved, while polar samples are weakly reserved and go through the flash reversed-phase...

Wednesday, September 25, 2019

Knowledge of QuEChERS Quick, Easy, Cheap, Effective, Rugged, Safe are generally abbreviated to QuEChERS. It is a sample pretreatment method for agricultural product detection. It is used to absorb and remove impurity, and the operational principle is similar to high-performance liquid...

Wednesday, September 25, 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...

Wednesday, September 25, 2019

Quantity : 1-200ton - Price : 10usd

Instructions of Epoxy Zinc-Rich Primer It is two components epoxy zinc-rich primer heavy corrosion by a zinc primer, epoxy resin and other components. On steel surface treated to form a hard, wear-resistant, durable film, and provide long-lasting cathode protection. Property of Zinc...

Wednesday, September 25, 2019

Quantity : 1-200ton - Price : 10,00 €

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 paint and anti fouling coating...

Tuesday, September 24, 2019

Suitable for a general flash chromatography method analysis, the flash column chromatography is the method of isolating a component from a mixture and purify it as well. Different from the old method: long column chromatography technology, flash column chromatography can separate...

Monday, September 23, 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, September 20, 2019

Quantity : 500 - Price : 7000-10000

Castor oil extraction machine is composed of electrical control, automatic heating, adjustment, transmission, and vacuum oil filter. The screw is carburized by alloy steel to enhance surface hardness and wear resistance. The screw platter is ground by the surface grinding machine...

Friday, September 20, 2019

The sample vial is a device which is widely used in chemical and medical fields. Currently, sample vial provided by our company falls into three types: screw top sample vial, crimp top sample vial and snap top sample vial. All of them provides with good quality and excellent chemical...

Friday, September 20, 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, September 20, 2019

Silica matrix HPLC columns are generally compatible, but organic polymer matrix columns may expand or contract in some solvent combinations, which will affect their chromatographic behavior. Wash each solvent system at least 20 volumes. Because some solvent systems are highly viscous...

Thursday, September 19, 2019

The determination of 10 plant polyphenols in tobacco samples by solid phase extraction and high-performance liquid chromatography as below: Plant polyphenols are important substances in tobacco. The content of polyphenols in tobacco has an important influence on tobacco quality. Therefore...

Thursday, September 19, 2019

Basically, the pipette is an instrument for a trace amount of liquid transfer, while the bottle-top dispenser needs installing at the mouth of a solvent bottle to move larger liquid amounts. Categories In terms of automatization, the pipette can be divided into mechanical and electronic...

Thursday, September 19, 2019

Good usage habit can help the experimenters to prolong the service life of the vacuum filtration instruments. The experimenters should pay attention to the following items to keep the instruments in good conditions. 1. Please check that if the voltage marked by the nameplate on the...

Wednesday, September 18, 2019

In the analysis of HPLC, the packing size of chromatographic column is small, and it is easy to be blocked by impurity particles. Therefore, samples and solvents need to be pre-filtered to remove particulate pollutants and protect chromatographic columns and instruments. Ion chromatography...

Wednesday, September 18, 2019

The capsule filter is small in size and mainly used in purification and filtration of chemicals, pharmaceuticals, microelectronic reagents, etc. The filter medium is placed in the interior of the capsule filter in the form of folds, which enlarges the filtering area and ensures the...

Tuesday, September 17, 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...

Monday, September 16, 2019

The syringe filter is mainly used for the filtration of solvent samples, which holds a crucial position in the sample prefiltration procedure, especially in the HPLC sample analysis. There are two basic aspects of the syringe filter that should be learned and memorized clearly. Composition...