PRETREATMENT - 251 ads

Thursday, August 15, 2019

The similarities FLASH and SPE are all column chromatography separation technology. FLASH is a fast separation mode for preparative chromatography, using optimized pre-packed low and medium pressure columns for chromatographic separation. The separation mechanism, stationary phase...

Wednesday, August 14, 2019

After years of development, the QuEChERS pretreatme nt method has been continuously improved and broadened by researchers as a simple and rapid residual pretreatment technology. The application target also has been extended from the highest moisture content of vegetables and fruits...

Wednesday, August 07, 2019

Food safety testing is a major issue related to people's livelihood. In recent years, the QuEChERS method has been widely used in the pretreatment of food safety detection samples. In addition, the method has been applied to trace analysis. QuEChERS Application The international application...

Tuesday, August 06, 2019

In recent years, the application of HPLC in inorganic analysis has developed rapidly, and the use of flash columns has been more and more widely because of a method that can rapidly determine heavy metal elements in environmental water samples. Matters needing the attention of flash columns 1...

Monday, August 05, 2019

Vacuum Filtration is a device for accelerating water filtration by negative pressure caused by air extraction. It's a filtering product that most lab customers will be used for suspension detection in water extraction filtration, microbial limit detection extraction filtration, chromatographic...

Monday, August 05, 2019

QuEChERS method has unique advantages in pesticide residue analysis. Due to the irrational use of pesticides and inadequate supervision of pesticide use, people may suffer from acute or chronic pesticide poisoning after eating pesticide-contaminated food, and even threaten human health...

Thursday, August 01, 2019

The flat sheet ceramic membrane is a new type of high temperature plate porous ceramic membrane, which is prepared by high temperature sintering process using inorganic materials such as alumina. Compared with the organic film, ceramic flat membrane has the advantages of good chemical stability...

Thursday, August 01, 2019

As a core technology, JIUWU has become the largest ceramic membrane element producer and a world leader in cross-flow filtration. Electrodeionization (EDI) is a kind of pure water manufacturing technology which combines ion exchange technology , ion-exchange membrane technology and...

Tuesday, July 30, 2019

Since its birth, the QuEChERS method has been widely used in pesticide residue analysis due to its unique advantages and characteristics of fast, simple and cheap. Lehotay et al. established a method, which uses the QuEChERS method to treat samples and analyze 229 kinds of pesticides...

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

Columns Ahead Statement Generally speaking, SPE/FLASH is mainly applied to the pretreatment of samples. People can easily perceive that SPE/FLASH columns separate salt and sugar, while HPLC ones can make glucose, maltose and sucrose apart from the sugar solution, which posses more...

Thursday, July 11, 2019

SPE column or SPE cartridges are based on liquid-solid phase chromatography theory, it is a kind of extraction, separation, concentrated sample preparation unit. Mainly used in sample pretreatment of various foods, agricultural and livestock products, environmental samples and target...

Monday, July 08, 2019

QuEChERS is a pretreatment that has the characteristics of Quick、Easy、Cheap、Effective、Rugged and Safe, which is the reason why it is becoming more and more popular in the new testing methods. It was developed by Professor Anastassiades in 2003, which was used in agricultural testing at first...

Monday, July 08, 2019

SPE Technique Introduction SPE(Solid-phase Extraction), is an increasingly popularized technology of sample pretreatment, which is established on the basis of traditional LLE(Liquid-liquid Extraction). Combined with the substance interaction mechanism that like dissolves like, and...

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...

Thursday, June 20, 2019

Extraction is often susceptible to matrix interference. One analytical method is fine in this matrix but can become problematic in another matrix. If we encounter such a situation, how can we improve the QuEChERS method to overcome it? For pesticide residues, most of the food samples...

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...

Sunday, April 21, 2019

Canola oil press machine is mainly 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 platters are ground by the surface grinding machine. It...

Friday, December 14, 2018

- PE Aluminum Composite Panel - PE aluminum composite panel is generally used for interior wall decoration. Polyester paint (PE): >0.016mm measured with a film thickness meter and wiped with butanone 100 times without exposure.The PE coating formed on the surface of the composite...

Tuesday, February 06, 2018

Quantity : 10 sets pe - Price : factory price

Advantages of activated carbon adsorption device: - The adsorption efficiency is up to 90%, it has the large capacity and wide application. - Activated carbon has the characteristics of low price, wide range of sources, and so on. - The operation is simple, safe and reliable. -...

Monday, September 25, 2017

Application of LNG Plant This unit is applicable to wellhead natural gas pretreatment, including dehydration, hydrocarbon recovery, compression, storage transportation and pressure regulation project, meeting the requirement of skid mounted vehicular design, manufacture, and simple...

Thursday, September 14, 2017

Brief introduction Ultrafiltration (UF) is used to remove essentially all colloidal particles (0.001 to 1.0 microns) from water and some of the largest dissolved contaminants. The pore size in a UF membrane is mainly responsible for determining the type and size of contaminants removed...

Thursday, September 14, 2017

Brief introduction Food production sites and drinking water plant must now comply with numerous requirements in the sanitary,economic and environmental domains cities worldwide are turning to our drinking water treatment solutions to help optimize resources and provide high-purity...

Thursday, July 27, 2017

Quantity : according - Price : 15 000,00 €

Groundnut oil extraction machine is the second step in cooking oil making machine .Product (cake from cooking oil press section) is carried into solvent extraction palnt.There are still much oil in cake.groundnut oil extraction machine is the machine to extract oil from oil cake which...

Thursday, January 12, 2017

Quantity : 25t - Price : 600$.t

Pré-peint acier galvanisé bobine / feuille Application principale: Batiment ,usage structurel, toiture, un usage commercial ,électroménager, les installations de l'industrie, immeubles de bureaux Matériel: SGCC, SPCC, DC51D, SGHC, A653 Pré-peint acier galvanisé bobine / feuille bobine...

Thursday, January 12, 2017

Quantity : 25t - Price : 600$.t

Pré-peint acier galvanisé bobine / feuille Application principale: Batiment ,usage structurel, toiture, un usage commercial ,électroménager, les installations de l'industrie, immeubles de bureaux Matériel: SGCC, SPCC, DC51D, SGHC, A653 Pré-peint acier galvanisé bobine / feuille bobine...

Friday, December 02, 2016

Quantity : 1MT - Price : 350USD

Supply: ASTM A387 GR11CL1|A387 GR11CL2|A387 GR12CL1|A387 GR12 CL2|Boiler steel sheet Steel Grade: ASTM A387 GR11CL1|A387 GR11CL2|A387 GR12CL1|A387 GR12 CL2|A387 GR5CL1|Pressure steel plate Main Application: ASTM A387 GR11CL1|A387 GR11CL2|A387 GR12CL1|A387 GR12 CL2 steel plate...

Thursday, September 01, 2016

AT220 RAPID CRACK PROPAGATION (RCP) TESTER Application: AT220 Rapid Crack Propagation (RCP) Tester is used to determine the arrest or propagation of a crack initiated in a thermoplastics pipe at a specified temperature and internal pressure by small-scale steady-state test (S4 test)...