PESTICIDES - 573 Annonces

Lundi 13 janvier 2020

The dispersed solid phase extraction kit is selected based on the type of food being analyzed and the method used. In this step, the extracted sample is added in equal amounts to a 2 ml or 15 ml centrifuge tube. The centrifuge tube contains a small amount of solid phase extraction...

Vendredi 10 janvier 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,...

Mardi 07 janvier 2020

Originally designed to analyze fruits and vegetables, QuEChERS now includes a variety of products. Since being developed and released by scientists at the United States department of agriculture in 2003, QuEChERS has gained increasing popularity as a method of selection. It combines...

Lundi 16 décembre 2019

Originally, QuEChERS was used as a test for multiple pesticide residues in vegetables or fruits. Up to now, its application range is no longer limited to this. At present, QuEChERS has a wide range of applications in agricultural and veterinary drug residues in agricultural products and foods...

Jeudi 12 décembre 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...

Mardi 10 décembre 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...

Lundi 09 décembre 2019

SPE cartridge A solid-phase extraction device is a physical extraction process involving a liquid phase and a solid phase. In the solid-phase extraction process, the adsorption of the solid relative analyte is greater than that of the sample mother liquor. When the sample passes through...

Vendredi 29 novembre 2019

Quantité : plus de 10

Bonjour, nous sommes actuellement en stock plus de 2000 tonnes d'arachide. nos arachides sont cultivées de façon naturelle. sans engrais ni pesticides. Nous offrons des arachides en coque de 2, 3 ou 4 gousses et décortiquées dans des sacs de 95 kg. Nos produits sont triés par nos...

Jeudi 17 octobre 2019

As national powder R&D center, GUIKUANG has made much efforts and contributions for the development of powder industry more than 40 years. Raymond mill has been through decades of history in China. As one of earliest Raymond mill manufacturers, GUIKUANG keeps pace with the times...

Jeudi 17 octobre 2019

GKW Micro Powder Mill is mainly used in chemical industry such as grinding glass, rubber, pesticides, enamel, paint, phosphate fertilizer, paper. Hardness below seven Moh's hardness following humidity below 6% non-flammable and non-explosive materials. Such as talc, barite, calcite...

Jeudi 10 octobre 2019

QuEChERS firstly came out in 2003. The inventors of QuEChERS, Michelangelo Anastasiades and Steve Lehotay, were asked for the three biggest improvements in this method from development to now. They made the following statement. In the period of conceiving the method QuEChERS, we have...

Mardi 08 octobre 2019

It is not difficult to find the early application of QuEChERS in pesticide residue detection in China, mainly for single pesticide detection, and most of the extraction and purification targets are carbamate, organophosphorus and pyrethroid. With the development of technology, the...

Mardi 08 octobre 2019

Hawach glass fiber extraction thimble, made of borosilicate glass fibers, is a quite common tool used laboratory. Just like all the other kinds of extraction thimbles, it could also be used with most Soxhlet extraction devices in the market, and for other extraction, experiments required...

Lundi 30 septembre 2019

As national powder R&D center, GUIKUANG has made much efforts and contributions for the development of powder industry more than 40 years. Raymond mill has been through decades of history in China. As one of earliest Raymond mill manufacturers, GUIKUANG keeps pace with the times...

Lundi 30 septembre 2019

GKW Micro Powder Mill is mainly used in chemical industry such as grinding glass, rubber, pesticides, enamel, paint, phosphate fertilizer, paper. Hardness below seven Moh's hardness following humidity below 6% non-flammable and non-explosive materials. Such as talc, barite, calcite...

Lundi 30 septembre 2019

Merits of Flash Column Flash column provided by Hawach scientific provides with many merits and unique properties, which makes it obtain consistent confidence and build a good image in the market. Specific merits are as follows, product model is complete, specifically including 15...

Lundi 30 septembre 2019

The purifying agent holds an important position in the QuEChERS pre-treatment method. An appropriate selection and application of it would be necessary for the users to improve the efficiency of purification and accuracy of the sampling detection result. Selection of purifying agents...

Dimanche 29 septembre 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...

Jeudi 26 septembre 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...

Mercredi 25 septembre 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...

Mardi 24 septembre 2019

Nous disposons actuellement en stock plus de 500 tonnes d'arachide. Nos arachides sont cultivées de façon naturelle. Sans engrais ni pesticides. Nous offrons des arachides en coque de 2, 3 ou 4 gousses et décortiquées dans des sacs de 100 Kg. Nos produits sont triés par nos experts...

Jeudi 19 septembre 2019

Description of Two Motor Two Legs Electric Height Adjustable Standing Desk： Two Motors Two Legged Electric Height Adjustable Standing Desk Supported by YND-03 environmental control box, raisable computer desk can be easily moved to the desired height by pressing a button on the controller...

Mercredi 18 septembre 2019

Selection of scavengers The conventional QuEChERS method only uses PSA which is too simple single that can no longer meet the complex matrix samples examination experiments. GCB (graphitized carbon black) can effectively adsorb pigments, non-polar interferences such as sterol due...

Lundi 16 septembre 2019

Hawach Scientific provides a wide selection of flash columns, they are a quick and easy way to separate complex mixtures of compounds, and often used on a preparative scale to provide better separation and cuts down on the amount of time required to run column. We committed to providing...

Lundi 16 septembre 2019

The extraction is divided into liquid phase extraction (LLE) and solid phase extraction (SPE). SPE technology is a column chromatography separation process. The technology is a combination of liquid-solid extraction and column liquid chromatography. The combination of this technology...

Vendredi 13 septembre 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...

Jeudi 12 septembre 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...

Mardi 10 septembre 2019

1. Advantages and disadvantages of commonly used extraction solvents Acetonitrile: easy to salt out; compatible with LC/MS; difficult to concentrate Acetone: not easy to salt out; easy to volatilize, concentrate Ethyl acetate: immiscible with water; less extraction of impurities;...

Mardi 10 septembre 2019

Extraction thimbles are often used when you need multiple extraction cycles to dissolve the desired compound in the lab. Extraction units such as the Soxhlet extractors or automized extractors, equipped with extraction thimbles, can save time of handling and make the extraction complete...

Samedi 07 septembre 2019

Quantité : 5000 MT - Prix : EUR 300 / Ton

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