GEL  - 1600 Annonces

Mercredi 09 octobre 2019

Flash column chromatography is an easy and fast method to separate the complex mixtures. It can not only make the separation effect better but also shorten the time. How to put the sample into the flash column is of high importance in the preparation process of flash column chromatography...

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

The essence of the chromatographic process is the process of distributing the equilibrium of the molecules of the substance to be separated between the stationary phase and the mobile phase. The distribution of the different substances between the two phases will be different, which...

Lundi 30 septembre 2019

Gel Heel Cushions for Shoes, Foam Heel & Metatarsal Pads, Leather Heel Cushions, Heel Grips, and Gel Ball of Foot Cushions. Designed to help absorb impact and give cushioning comfort for the heel, metatarsal pad, arch, or fore-foot. HEEL PAIN KILLER: Gel liners protect and support...

Lundi 30 septembre 2019

Best solution for all kinds of foot disease: gel foot sleeves, to provide metatarsal joint padding and protection from blisters. Forefoot pain can be caused by many different disorders. The most common condition is metatarsalgia, a painful disorder associated with the metatarsal (ball...)

Lundi 30 septembre 2019

BEST MOISTURIZING SPA GEL SOCKS: The soft socks provide intensive hydration treatment to moisturizes and softens hard, dry, rough, cracked feet, toes and heels skins. The outer layer of the moisturizing gel sock is made of ultra-fine fluff to make the skin feel soft. The inner layer...

Lundi 30 septembre 2019

A multi-functional correction pads for flat foot, strephexopodia, X-type legs and pigeon toe. Arch Support Cushions are efficient Pads to relieve pain and pressure related to Plantar Fasciitis, tendonitis, arthritis, high arch and a variety of Arch problems. Effective correction pads...

Lundi 30 septembre 2019

Quantité : 25kg - Prix : FOB Qingdao 2.4-2.9$

What is cmc in food ？ Description of Food Grade CMC Carboxymethyl cellulose cmc(CMC/cellulose gum) is kind of cellulose ether, can easily soluble in cold and hot water, with maximum yield, most widely and conveniently used among all cellulose products. The main raw material of CMC...

Lundi 30 septembre 2019

HPLC columns are widely used in many fields, whose column efficiency, capacity, permeability characteristics, and service life are very important. After using for a period of time, there will be changes such as column pressure increase, column efficiency decrease, etc. If no measures are taken...

Samedi 28 septembre 2019

Depending on the packing of the HPLC column. The following column types are available on the market: 1. Silica gel HPLC column: Silica gel is the earliest chromatographic column packing used in liquid chromatography. It has a wide range of applications. However, it can only be used...

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

Quantité : 2000Ton - Prix : 6~60 usd/KG

SPECIAL FEATURES OF GOLOHO-324C-AB 1: 1 Two-part, 1: 1 mix ratio Low viscosity Room temperature accelerated cure, no small molecule release Suitable working time at room temperature Excellent adhesion and self-healing Excellent stability at 200℃ high temperature Description of the...

Jeudi 26 septembre 2019

Quantité : 2000Ton - Prix : 6~60 usd/KG

Are you looking for RTV silicone thermal conductivity? FEATURES OF GOLOHO-2752 GOLOHO-2741 is a high performance thermally conductive RTV silicone adhesive · Excellent thermal conductive, heat dissipation and adhesion ·Small power heater can be directly bonded on the radiator without...

Jeudi 26 septembre 2019

Quantité : 2000Ton - Prix : 6~60 usd/KG

FEATURES OF HEAT RESISTANT RTV SILICONE GLUE GOLOHO-2402W GOLOHO-2491 is a high-performance heat resistant RTV silicone glue for electronics. ·Convenient to use: one part, rapid curing at room temperature,deal coholization ·Neutral,non-corrosive to various metals. Excellent bonding...

Jeudi 26 septembre 2019

- Reversed-Phase Principle - The reversed-phase filler is a kindly of nonpolar filler such as C4, C8, C18 aliphatic chain which is bonded on the silica gel. Nonpolar or hydrophobic compounds are strongly reserved, while polar samples are weakly reserved and go through the flash reversed-phase...

Mercredi 25 septembre 2019

General requirements for adsorbents: large surface area and certain adsorption capacity. Does not chemically change with the developing agent, does not react with or catalyze, decompose or associate with the substance to be separated, and the particles are uniform. Silica gel and...

Mercredi 25 septembre 2019

Quantité : 1-200ton - Prix : 10usd

We offer different kinds of Station Post Insulator for Substation, such as Circuit Breaker (CB), Post Insulator, Disconnector, Potential Transformer (PT), Surge Arrester, etc. Contact us get more details about Station Post Insulator, such as TDS, Application Method, OEM etc. We can...

Mardi 24 septembre 2019

Screw thread top sample vials have excellent chemical stability, sealing and corrosion resistance, and are available in both transparent and amber. The cap of sample vial has a solid lid and a perforated lid, which can be divided into black and blue. This series of products are designed...

Mardi 24 septembre 2019

Suitable for a general flash chromatography method analysis, the flash column chromatography is the method of isolating a component from a mixture and purify it as well. Different from the old method: long column chromatography technology, flash column chromatography can separate...

Lundi 23 septembre 2019

Let's take a look at two common adsorbents for adsorption chromatography. Polyamide The polyamide adsorbent can be divided into nylon 6 (polycaprolactam) and nylon 66 (polyhexamethylene adipamide), which are hydrogen bond adsorption and semi-chemical adsorption. There are many amide...

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...

Jeudi 19 septembre 2019

It is a liquid chromatography using a chemically bonded phase as a stationary phase, which is formed by chemically reacting an organic molecule to a surface of a carrier (silica gel) by a covalent bond to form a uniform, firm monolayer thin layer. The separation mechanism is both...

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...

Mercredi 18 septembre 2019

In chromatographic experimental analysis, a device that can quantitatively feed a sample bottle into a chromatographic column is called a sample vial. Sample vials are divided into manual and automatic sample vials. The automatic sample vial is an intelligent and automatic sampling...

Mercredi 18 septembre 2019

Hawach SPE Cartridges are made of medical grade PP and forming in one time. Frits are made of UHMW-PE. There is a variety of models to choose, such as Normal Phase Cartridge, Reversed Phase Cartridge, Ion Exchanges Cartridge, Mixed Mode Cartridges and so on. Here, We would like to...

Mardi 17 septembre 2019

Adsorption chromatography uses the difference in adsorption capacity of substances in stationary phase adsorption to achieve separation of the mixture. The chromatographic process of adsorption chromatography is the process in which the mobile phase molecules compete with the material...

Mardi 17 septembre 2019

Quantité : 100000pcs/ - Prix : 1.5~4800 USD

Dongjin DG series VRLA Gel Type Battery is specially designed for motive power applications, that is electric tricycles, electric motorcycles and other device require DC power source. Dongjin electric trike batteries adopt international leading technologies to ensure the batteries...

Mardi 17 septembre 2019

Quantité : 100000pcs/ - Prix : 1.5~4800 USD

Dongjin Group is one of the most professional EV car battery manufacturers. Dongjin VRLA EV Battery is specially designed for the motive power of electric vehicles other devices require DC power source. EV battery is with long cycle service life, good high rate discharge performance...

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...

Mercredi 11 septembre 2019

Quantité : 2500km/wee - Prix : <$200

Description: UnitekFiber supply flat drop fiber cable, this cable also can be called as a small span of ADSS fiber cable to apply in a small span of ADSS installation system. The structure of flat drop cable is central loose tube, Kevlar and glass yarn is usually used as reinforcement...