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Friday, July 26, 2019

Constant fresh air in your home is an important aspect to maintain the indoor air quality. A good ventilation system will protect your family from unpleasant odos and harmful contaminants such as formaldehyde and VOCs. Opening window is a simply way to increase ventilation, it can...

Friday, July 26, 2019

Nowadays, the standards of people's living are improving, not only to install air-conditioning, floor heating, and better-conditioned homes,but also to install ventilator, dehumidification and other equipment. A person with insights who is more environmentally conscious, and also...

Monday, July 15, 2019

The solid phase extraction cartridges (SPE column, or Solid Phase Extraction Cartridges, or SPE cartridges for short) is a sample pretreatment device for extraction, separation and concentration developed from a chromatography column. Mainly used in sample pretreatment of various foods...

Friday, July 12, 2019

Characteristics of QuEChERS QuEChERS is a pretreatment method for pesticide residue detection. This paper refers to the products produced by our company. Its name comes from the acronyms of the words “Quick, Easy, Cheap, Effective, Rugged, Safe”, which are also the characteristics...

Friday, July 12, 2019

Today, Hawach want to talk about the pre-treatment process for pesticide residue detection from the perspective of food safety – QuEChERS, and also tell you how to pre-treat pesticide residue food. Introduction The present analytical methods and determining techniques, pre-treatment...

Thursday, July 11, 2019

Filter cartridges are purification equipment, with long service life, strong pollution capacity and low pressure and other characteristics, which are suitable for pharmaceutical, food, petroleum, electronic, chemical, metallurgical and textile industries. Features of filter cartridges 1...

Wednesday, July 10, 2019

According to the research from the United States Department of Agriculture, the QuEChERS meth od which extracts pesticide from foods is fast, convenient, cheap, effective and secure. When it compares to the traditional SPE method, QuEChERS not only uses less solvent but also adopts...

Tuesday, July 09, 2019

Rapid chromatography Technology for the separation and purification of natural products and biological macromolecules. It has the advantages of easy operation, cheap price, and rapid analysis, and a few other technologies can match the rapid chromatography in the application of purifying...

Tuesday, July 09, 2019

Melt-blown filter cartridges are shaped filter cartridges, which made of non-toxic and odorless polypropylene particles after heating, melting, spinning, traction. Melt-blown filter cartridges are not only used in water purification, but also have excellent chemical compatibility...

Monday, July 08, 2019

What is the sample vial? Sample vials, also named as sampling bottles, purification bottles, aseptic bottles, clean bottles, filter bottles, etc., are essential for detecting pollution. According to International Standard, it is specially qualified for cleaning appliances so that...

Monday, July 08, 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...

Friday, July 05, 2019

The cleanroom pass through box is primarily for the transfer of small items between the clean area and clean area, the non-clean area and clean area, so as to reduce the number of clean room door and the maximum reduction of the denuded zone pollution. Pass box are widely used in...

Friday, July 05, 2019

The product mainly includes two parts: extraction boxes and purification boxes. Extraction boxes include salt bags and 50 ml centrifugal tubes. Due to the high transportation cost of 50 ml centrifugal tubes and the general unacceptability of customer laboratories, more customers will...

Thursday, July 04, 2019

As a single-use, membrane-based device, syringe filter is used for the removing particulate impurities from small (less than 100 mL) liquid samples in the lab. For different applications, the syr inge filter are used in for fast and efficient filtration, material purification, and sterilization...

Thursday, July 04, 2019

As a single-use, membrane-based device, syringe filter is used for the removing particulate impurities from small (less than 100 mL) liquid samples in the lab. For different applications, the syr inge filter are used in for fast and efficient filtration, material purification, and sterilization...

Thursday, July 04, 2019

A microporous membrane filter is a membrane separation technology, the shape of the cylindrical structure, made of 304 or 316L stainless steel, which can filter 0.1μm or more particles and bacteria in liquid and gas. Features A microporous membrane filter has the advantages of high...

Wednesday, July 03, 2019

Flash column chromatography is an efficient way to separate complex mixtures of compounds in the lab. we use compressed air to push the solvent through the column when we are running flash columns. It can help provide better separation and cut down the running time as while. Flash...

Tuesday, July 02, 2019

Stainless Steel Filtration System Product Introduction Hawach stainles s steel filtration system is widely used in research units, inspection and quarantine institutions, quality monitoring institutions, natural mineral water industry, drinking water industry, the pharmaceutical industry...

Tuesday, July 02, 2019

The average sample addition recovery rate of QuEChERS method is higher than 85%, with fewer impurities interfering with the detection of the target substance, a small amount of solvent, simple and fast operation, which will be the preferred pretreatment method for routine detection...

Monday, July 01, 2019

Sample vial, also known as sampling bottle, purification bottle, sterile bottle, clean bottle, filter bottles, etc., is essential for pollution detection. It is special equipment which is qualified for cleaning according to the international standard ISO3722 “Identification of Cleaning...

Monday, June 24, 2019

QuEChERS is widely used in many areas, in the case that the targeting recovery rate satisfies the need, and also the matrix background of removing impurities meets detection, it can be applied to purify stuff such as residues of food and veterinary, additives, plasticizers. However...

Friday, June 21, 2019

Flash chromatographic column, also called rapid chromatographic column(rapid column crossing, which means gradient elution, decompression or pressurization of the column), medium pressure chromatographic column（for example, rapid elution is achieved by pressurizing with nitrogen and...

Friday, June 21, 2019

Hawach Scientific co., Ltd. provides PES pleated filter cartridge with high performance. PES uniform pore size distribution enables the filter elements to have excellent bacterial interception ability. PES has been widely used in medicine, biology, beverage and drinking water due...

Wednesday, June 19, 2019

Take the example of pear test to check whether a pear is up to the standard. Prepare the environment The first step: Suitable Acetonitrile salting-out extraction environment was prepared. Make the pears into a puree, take 10g to QuEChERS centrifuge tube of 50ml. Add extract solution...

Wednesday, June 19, 2019

The most important process of the whole purification is selecting the most suitable Flash column. And now we will talk about the key content of the column: stationary phase. Stationary phase, commonly known as filler, is the most central part of chromatography. When we choose the...

Wednesday, June 19, 2019

SPE cartridges, with a full name of Solid Phase extraction cartridges, is also called the SPE column( solid phase extraction column). The solid phase extraction column/cartridges is a pretreatment device for the sample being analyzed, which developed from the chromatographic column...

Tuesday, June 18, 2019

Qualitative filter papers usually apply to filter at atmospheric pressure, which uses the ability of the material to remove particles to separate the liquid and solid of the sample. It covers most of the laboratory applications, is used commonly for liquid clarification and, sometimes...

Sunday, June 16, 2019

OMS skid-mounted (Organic Membrane Filtration System) refers to a form of overall combination of equipment frame and whole equipment. It means that a group of equipment is fixed on the chassis and can be used after moving. It is not necessary to install valves and instruments in the middle...

Sunday, June 16, 2019

Ceramic membrane technology and organic membrane technology can be used in combination. Organic membrane can follow ceramic membrane. We have organic membranes with wide range of pore sizes to different applications, from removing salt to filtering large particulates. JIUWU company...

Sunday, June 16, 2019

The ceramic microfiltration membrane element ( MF membrane) is made from alumina and zirconia which is an asymmetric membrane structure with multi-channel tubular shape. The pore is on the channel. Driven by operation pressure, the liquid is running in the membrane. The part less...