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Friday, January 10, 2020

The extraction thimbles are made of selected high-quality material, using highly efficient and innovative technology and highly homogenized molds. It contains no impurities and the product pore size is uniform. It is often used for Soxhlet extraction and rapid solvent extraction,...

Thursday, January 09, 2020

Hawach tubes and sample vials are the essential devices for collecting, transporting and storing samples. Always available in a variety of colors, sizes, volume capacities, and material compositions, Hawach sample vials can make your lab much more efficient with fewer failed assays...

Thursday, January 09, 2020

Hawach Scientific specialized in filtration products for more than decades years. All our filter papers are made from the imported membrane in the cleanroom. Before release to market, the products are consigned to the QC department for random inspection. In analytical chemistry, the...

Monday, January 06, 2020

Hawach solid phase extraction cartridges are designed for sample pretreatment to remove or minimize sample matrix and other interferences to “clean up” a sample prior to analysis. This procedure can also concentrate an analyte to achieve the desired sensitivity range of an analytical method...

Friday, December 13, 2019

HAWACH glass fiber extraction thimbles are made of 100% alkali-free glass fiber and processed at high temperature, which is adhesive-free and chemically inert. It can collect small and sub-micron particles. It is a high-efficiency filtering device that captures soot, acid mist, aerosol...

Thursday, December 12, 2019

QuEChERS is a streamlined technique that makes it easier and cheaper for analytical chemists to examine the pesticide residues in agricultural products. It is exploited by many professors of the American Ministry of Agriculture in 2003, especially Anastassiades. This technique shares...

Tuesday, December 10, 2019

Nylon membrane filters are suitable for use with high PH samples; PES membranes filters are fit for filtration of compatible organic solvents and aqueous samples; PP membrane filters are widely used in analytical and research applications for the pharmaceutical, environmental, biotechnological...

Tuesday, December 10, 2019

The protective HPLC columns influence the separation result. First of all, the protective column has a good positive effect on the experiments. Even if the stationary phase is chosen incorrectly, the protective column can also be effective for separation. The protective column is...

Tuesday, December 10, 2019

Due to the variety of targets, large structural differences, and low target content, the detection of pesticide residue method requires being accurate, rapid, sensitive, simple and low cost. The QuEChERS method is more and more widely used in pesticide residue detection, as it is green and quick...

Thursday, October 17, 2019

Pendulum mill is also called as suspension roller or pendulum roller mill. It is a "ring and roller" powder-making mill equipment, which is combined with air flow screening and pneumatic conveying. The pendulum grinding mill belongs to the roundel immovable mill and has high universality...

Wednesday, October 09, 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...

Tuesday, October 08, 2019

With the increasing difficulty of detection and the increasing requirement of detection, a large number of analytical instruments have entered the laboratory, and bottle top dispenser is one of them. The characteristics of the bottle top dispenser are described in detail below. 1...

Monday, September 30, 2019

Pendulum mill is also called as suspension roller or Raymond mill. It is a "ring and roller" powder-making mill equipment, which is combined with air flow screening and pneumatic conveying. The pendulum grinding mill belongs to the roundel immovable mill and has high universality...

Sunday, September 29, 2019

The paper of the filter paper is loose and has strong absorption of liquid. Analytical laboratories often use filter paper as a filter medium that separates the solution from the solid. More importantly, during the manufacturing process of quantitative analysis filter paper, the pulp...

Thursday, September 26, 2019

Along with the rapid improvement of domestic technology, the QuEChERS analytical method is no longer just applied in the pesticide residue detection on food and fruits, but also used for the extraction and purification of cereal samples with low moisture content. Moreover, it is also...

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

The filter paper used in the analytical laboratory performs a strong absorption effect for liquids, which can separate the solution from the solid. The filter paper produced domestically could be divided into three types, including qualitative filter paper, and quantitative filter paper...

Friday, September 13, 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, September 12, 2019

Cellulose extraction thimbles are highly recommended as the high-quality sample reservoirs for quality control, research, and analytical applications especially when solvent extraction of solids and semi-solids need to be carried out. And the use of a Soxhlet extractor loads the safe...

Thursday, September 12, 2019

Hawach Scientific is the production of filter paper professional manufacturers with advanced production technology and perfect testing equipment. Quantitative filter paper is suitable for a wide range of critical gravimetric analytical filtration procedures. In the manufacturing process...

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...

Thursday, August 29, 2019

Quantity : 1 - Price : 0-50000

We are one of the professional air quality monitoring equipment suppliers, please always feel free to contact. The atmosphere is the basic condition for our survival. Air pollution has become a serious problem that affects human health and threatens human survival because of the persistent...

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...

Friday, August 16, 2019

The membrane filters of different materials have different characteristics. Here are as follows: - Nylon (NY) Material - Features: hydrophilic, resistant to some organic materials, not strong acid, protein binding capacity is high, so it is not suitable for protein recovery. Application...

Friday, August 09, 2019

Reversed-phase chromatography (RPC) contains any chromatographic method using a non-polar stationary phase. The word “reverse” has a historical background. In the 1970s, most liquid chromatography was performed on unmodified silica or alumina. Their surface chemistry is hydrophilic...

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...

Thursday, August 01, 2019

QuEChERs is a sample treatment and purification technology for the detection of multiple pesticide residues in high-water-content food. Because it simplifies the previously complex extraction procedures and expands the scope of the extracted pesticide residues, QuEChERs becomes an...

Thursday, August 01, 2019

Quantitative filter papers are widely used for quantitative and gravimetric analysis in the lab. To make them ash-less and achieve high purity, a special production process with acid is required in production, washing with HF or HCl acids, cleaning with demineralized water followed...

Tuesday, July 30, 2019

Quantitative filter paper or qualitative filter paper, it is a question. While at the very beginning, we can distinguish from the literal meaning between quantitative and qualitative. Quantitative refers to fixed quantity, more about physical properties. Qualitative refers to fixed quality...