POSITIVE - 1359 Annonces

Samedi 17 août 2019

Quantité : 10 SETS - Prix : 10000 CNY

The theory of high frequency welding equipment: Under the effect of the high frequency electric field, the positive and negative charges of the substance to be heated displace to form electric pole polarons. The polarons polarize repeatedly to cause the molecules to produce the intense...

Vendredi 16 août 2019

Quantité : 10 SETS - Prix : 10000 CNY

Equipment Description of High Disposition Automotive mat welding machine Our company's production of high-frequency welding machines for sun visors of cars introduce advanced technology and major components, complete product range, stable quality. It can also be customized according...

Vendredi 16 août 2019

NH2 HPLC columns refer to the chromatographic columns that use silica gel as matrix carrier to bond amino groups. They are usually used for the analysis of carbohydrate compounds, and the mobile phase is usually methanol, acetonitrile and buffers salt solution. - The cleaning method...

Vendredi 16 août 2019

- Category - In terms of the filler type, SPE column can be divided into four applications of silicone bonding matrix, polymer matrix, absorption matrix and specialized columns. Besides, the silicone bonding has four sorts—antiphase(C18 sealing end/uncapped/hydrophile, C8), positive...

Lundi 12 août 2019

The system of an HPLC column is composed of a liquid, a reservoir, a pump, a sampler, a column, a detector and a recorder. - The packing material of HPLC columns - The packing material has high carbon content, small surface polarity, very low chemical purity and high surface separation...

Dimanche 11 août 2019

ABOUT SCINTILLA KREATIONS SCINTILLA KREATIONS is more than two decades old production company with a visionary cinematic craftsman at its helm – Mr. Sateesh Kumar, who has more than two decades of expertise in the visual media and broadcast industry. A fully integrated film production...

Samedi 10 août 2019

Quantité : 10000 - Prix : 1-10000 USD

The working principle of the electrostatic dust collector is to use the high voltage electric field to ionize the flue gas. The dust charge in the air flow is separated from the air flow under the action of the electric field. The negative electrode is made of metal wires with different...

Vendredi 09 août 2019

Dongjin OPzS Tubular Flooded and maintenance-free OPzV Tubular Gel batteries provide proven performance and reliability in the most demanding renewable, stationary and deep cycle telecom applications. The OPzS and OPzV batteries feature tubular grids and multi-tube gauntlets that...

Vendredi 09 août 2019

An Electric Bike is a fantastic way to reduce your carbon footprint and to be green. Dongjin group has been manufacturing suitably rated, reliable, affordable and safe E-Bike Batteries with long cycle service life, good high rate discharge performance and better float charging service...

Vendredi 09 août 2019

Dongjin AGM VRLA batteries are Valve Regulated Lead Acid battery with Absorbent Glass Mat separators. With stable quality and affordable cost, our AGM UPS batteries are widely used in all ranged of UPS, energy storage and telecommunication systems. Advantages of AGM VRLA battery Long...

Vendredi 09 août 2019

Quantité : at least 1 - Prix : 1.5~4800 USD

Dongjin AGM deep cycle battery is optimized for being discharged over a longer period of time. The specially designed plate formula increases cyclic life. With stable quality and affordable cost, our AGM deep cycle batteries are widely used in all ranged of energy storage. Advantages...

Vendredi 09 août 2019

Reversed-phase chromatography (RPC) contains any chromatographic method using a non-polar stationary phase. The word “reverse” has a historical background. In the 1970s, most liquid chromatography was performed on unmodified silica or alumina. Their surface chemistry is hydrophilic...

Jeudi 08 août 2019

Most common SPE cartridges are injection syringes made of polyethylene, in which there are two plugs made of polypropylene or fiberglass, with a certain amount of chromatographic adsorbent (filler) between the two plugs. SPE cartridges without sieve plate 1. Avoid “non-specific adsorption” 2...

Mercredi 07 août 2019

We are wholesale suppliers and distributors of Various Dairy products worldwide. Dairy products or milk products are a type of food produced from or containing the milk of mammals, primarily cattle, water buffaloes, goats, sheep, camels, and humans. Dairy products include food items...

Samedi 03 août 2019

Quantité : 1000TM - Prix : 50USD

CAS No. 141-32-2 Butyl acrylate is a colorless liquid insoluble in water and miscible in ethanol and ether. It is mainly used as an organic synthesis intermediate, adhesive, and emulsifier. However, it is also a dangerous product that is harmful to the body through inhalation, oral...

Mercredi 31 juillet 2019

Solid phase extraction (SPE), developed in the 1970s, can replace the traditional liquid-liquid extraction in many fields and has been applied more and more widely in the laboratory. The common solvent of SPE Hexane, isooctane, tetrahalide carbon, trihalomethane, dihalomethane, tetrahydrofuran...

Vendredi 26 juillet 2019

Indoor humidity produced by human activity(showering, cooking, perspiring, and even breathing) can build up to very high level, it does more than make us uncomfortable. This can encourage the growth of organisms harmful to our health, and over time, it`s bad for the structure and furnishings...

Vendredi 26 juillet 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...

Vendredi 26 juillet 2019

As we all know moisture in the house can create humidity,and this muggy air can make you uncomfortable especially on those warm summer days, the moisture in the air makes it feel much hotter than what the thermometer says.Aside from the lack of comfort, a rise in excess air moisture...

Jeudi 25 juillet 2019

Quantité : 50 - Prix : $145

Original Hummingbird Rotary Tattoo Machines with Swiss motor Maxon or standard Swiss motor available for this machine We do not use any other motors for Hummingbird tattoo machines The Hummingbird series rotary tattoo machines are designed and made by our company. It's been tested...

Lundi 15 juillet 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...

Jeudi 11 juillet 2019

First, the purpose of the request The colorectal flora in water was determined by the membrane method. Second, the basic principles The filter membrane method uses a filter to filter the water sample, and the bacteria are trapped on the filter membrane, and then the filter membrane...

Mardi 09 juillet 2019

First, the purpose of the request The colorectal flora in water was determined by the membrane method. Second, the basic principles The filter membrane method uses a filter to filter the water sample, and the bacteria are trapped on the filter membrane, and then the filter membrane...

Lundi 08 juillet 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...

Jeudi 04 juillet 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...

Jeudi 04 juillet 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...

Dimanche 23 juin 2019

As we all know moisture in the house can create humidity,and this muggy air can make you uncomfortable especially on those warm summer days, the moisture in the air makes it feel much hotter than what the thermometer says.Aside from the lack of comfort, a rise in excess air moisture...

Vendredi 21 juin 2019

1. Capacity setting For the adjustable pipette, it is usually operated in the range of 10% to 100%. The optimal pipetting capacity is in the range of 35% to 100%. At this time, it is less affected by the operation technique and can better protect the pipetting. Accuracy and precision...

Vendredi 21 juin 2019

Normally SPE cartridge has two basic adsorption modes: target compound adsorption mode, impurity adsorption mode; 5 operation modes: gravity operation, manual positive pressure, centrifuge, negative pressure and positive pressure mode. Now let's review the whole process step by step...

Jeudi 20 juin 2019

Quantité : 1000 - Prix : 36,00 €

Comme tout vrai thé, le thé noir et le thé pu'er offrent de nombreux avantages potentiels pour la santé. La recherche a montré que le thé (Camellia sinensis) peut avoir de nombreux effets positifs sur la santé humaine, notamment une amélioration de la fonction cardiovasculaire, une...