MATRIX - 921 Annonces

Dimanche 19 janvier 2020

The QuEChERS method is a sample preparation technology based on solid-phase extraction and matrix solid-phase dispersion technology. It is suitable for the treatment of low-fat samples and can achieve ideal results for samples containing less than 15% fat. Because of its simple operation...

Samedi 11 janvier 2020

Quantité : 1 - Prix : 10000-500000USD

DM-520/530 DM-5xx series is our most flexible optical measurement solution that address versatile display measurement. We can offer you an optical measurement system whether the measurement of mobile phone display module, backlight module, display application test, or QC / QA measurement...

Mercredi 08 janvier 2020

With the full line of different sizes, Hawach always provides you the high purity stationary phased packed flash column. And the column cartridge made from medical grade virgin PP and PE materials and different stationary phases prepacked will help you to meet a variety of compounds...

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 06 janvier 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...

Samedi 07 décembre 2019

Quantité : 1 - Prix : 1,00 €

Why Choose Outdoor LED Display F Series AOTO F Series products as the first outdoor SMD LED display in the world, are with mature production processes and technologies as well as stable performance. The patented mask design brings high contrast and large viewing angle, while the 20-bit...

Samedi 07 décembre 2019

Quantité : 1 - Prix : 1,00 €

Why Choose outdoor led video wall F Series AOTO F Series products as the first digital screen board in the world, are with mature production processes and technologies as well as stable performance. The patented mask design brings high contrast and large viewing angle, while the 20-bit...

Samedi 30 novembre 2019

Quantité : 2000sqm/mo - Prix : 500~2000usd/sqm

Outdoor led advertising screens OF4 | OF5 | OF6 | OF8 | OF10S | OF10D | OF16S Energy saving to save cost Front maintenance to save space Wifi, 4G, cloud, usb, remote control All weather resistant for stable operation High brightness provide perfect performance Parameter Value OF4...

Vendredi 29 novembre 2019

Quantité : 1 - Prix : 1,00 €

Why Choose outdoor led display panels ? F Series AOTO F Series products as the first outdoor SMD led video display board in the world, are with mature production processes and technologies as well as stable performance. The patented mask design brings high contrast and large viewing angle...

Mercredi 06 novembre 2019

Quantité : 500square - Prix : 25usd

Nano aluminum composite panel is a new high-end functional product springing up in the recent years. A semiconductor oxide nanometer coating (current mainly TiO2) is added on the surface of curtain wall plate. The coating is composed of nanoscale particles and nanoscale pore in structure...

Dimanche 13 octobre 2019

Quantité : 2000sqm/mo - Prix : 500USD

Outdoor Commercial LED Advertising Screen OF4 | OF5 | OF6 | OF8 | OF10S | OF10D | OF16S Energy saving to save cost Front maintenance to save space Wifi, 4G, cloud, usb, remote control All weather resistant for stable operation High brightness provide perfect performance Parameter...

Samedi 12 octobre 2019

The stationary phase, commonly known as the fillers, is the most central part of chromatography. People need to determine three aspects of stationary phase information in turn before determine how to select the kind of the stationary phase of the flash purification column. They are matrix type...

Mercredi 09 octobre 2019

Solid phase extraction (SPE) is used to reduce sample matrix interference and improve detection sensitivity. The separation selectivity of the solid phase depends on the retention strength of the components that can be retained, so the selection of the solid phase will depend on the...

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...

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...

Lundi 30 septembre 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...

Vendredi 27 septembre 2019

Reliable flash columns play a decisive role in a good chromatographic separation method, which ensures complete separation of valuable compounds and specific impurities. Choosing the right flash column is the most critical part of the purification process. There are two aspects should...

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...

Lundi 23 septembre 2019

The reason for the QuEChERS matrix effect in the liquid state is generally considered to be due to the non-volatile components in the matrix and the substance to be tested, which competes in the ionization process. The matrix effect in gas phase temperament is generally attributed...

Vendredi 20 septembre 2019

Quantité : 1 - Prix : 0,10 €

Surligner Étiquette de prix électronique d'usine la moins chère 4.2 pouces affichage électronique intelligent ESL sans fil !!! S'il vous plaît noter: Le prix fourni dans le site Web alibaba est sans signification, bienvenue à demander le prix réel par email ou par enquête. Description...

Vendredi 20 septembre 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...

Vendredi 20 septembre 2019

Solid phase extraction is essentially a liquid chromatographic separation. The main separation mode is the same as that of liquid chromatography. It can be divided into normal phase (the polarity of the adsorbent is greater than the polarity of the eluent), and the reverse phase (the...)

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

Reversed phase chromatography (RP) is the most widely used technique in high-performance liquid chromatography (HPLC) up to now, mainly because it is suitable for the analysis of most of them. Nonpolar substances and many ionizable and ionic compounds. Most stationary phases used...

Mercredi 11 septembre 2019

Quantité : 2000sqm/mo - Prix : 500~2000usd/sqm

LED Rental LED Display VI2.6 | VI2.9 | VI3.9 | VI4.8 | VI5.9 VO3.9 | VO4.8 | VO5.9 Front Maintenance Curved Installation Edge-care Design No Light Leakage Light and Thin Parameter V Series Outdoor VO 3.9 VO 4.8 VO 5.9 Pixel Pitch(mm) 3.91mm 4.81mm 5.95mm Pixel Matrix Per Sq...

Mercredi 11 septembre 2019

Quantité : 2000sqm/mo - Prix : 500~2000usd/sqm

Outdoor Commercial Advertising LED Display OF4 | OF5 | OF6 | OF8 | OF10S | OF10D | OF16S Energy saving to save cost Front maintenance to save space Wifi, 4G, cloud, usb, remote control All weather resistant for stable operation High brightness provide perfect performance Parameter...

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 03 septembre 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...

Vendredi 30 août 2019

Quantité : 100-1,000, - Prix : 20s

Eolane SCM is a professional OLED screen manufacturer. We provide a wide range of standard passive matrix OLED (PMOLED,Graphic OLED displays with board and OLED display panels. Mechanical construction includes Chip on Board (COB), Chip on Glass (COG), and TAB (Tape Automated Bonded) types...)

Vendredi 30 août 2019

Quantité : 100-1,000, - Prix : 20s

We are custom made lcd display manufacturer, specializing in a wide range of TFT and passive matrix Liquid Crystal Display technologies, and etc. : Wide viewing angles, wide color gamut, high contrast, sunlight readability, extreme temperature functionality and more. Even more, we...