DIFFERENCES - 3083 Anuncios

Viernes 13 septiembre 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...

Jueves 12 septiembre 2019

What is the root cause of the warpage of foamed equipt concrete? In the production of foamed concrete equipment, problems of warpage of the equipment sometimes occur. So, why should we start? 1. The warping deformation of equipt concrete depends largely on the difference between the...

Miércoles 11 septiembre 2019

Cantidad : 1 - Precio : 600~3000RMB

PSST explosion-proof telephone is designed to provide safe, reliable voice communication for both indoor and outdoor hazardous areas. featuring a sturdy non-sparking, impact and shock resistant fibreglass-reinforced polyester cast body, silica gel or stainless steel keypad, durable handset...

Martes 10 septiembre 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;...

Martes 10 septiembre 2019

According to the separation mechanism of substances, Chromatography can be divided into adsorption chromatography, distribution chromatography, ion exchange chromatography and the like. The operation mode of the adsorption thin layer chromatography refers to that the adsorption capacity...

Lunes 09 septiembre 2019

The macroscopic, physical properties of a powder pile are the basic characteristics of powder materials. Knowledge of these properties is therefore a crucial factor in powder production, processing and packaging, as well as in the transport, storage and application of these materials...

Viernes 06 septiembre 2019

Cantidad : 1000 - Precio : 100USD-10000USD

The Features of High Precision Benchtop Spectrophotometer Colorimeter It has high precision and uses the setting of the pre-positioning board, which eliminates the need to use the standard blackboard and whiteboard during the calibration of the traditional colorimeter and color difference meter...

Viernes 06 septiembre 2019

Cantidad : 1000 - Precio : 100USD-10000USD

Colorimeter is widely used in the color management field of plastics, printing, paint, ink, textile, printing metals, dyeing garments, household appliances and scientific research institution. There are many kinds of colorimeter, such as lab colorimeter and spectrophotometer color meter...

Viernes 30 agosto 2019

Cantidad : 100-1,000, - Precio : 20s

We are offering our client an excellent quality range of double sided PCB are available in different thickness and track widths. These are precisely engineered using top quality components and using advance technologies by our experts. Our products are widely recommended by clients...

Miércoles 28 agosto 2019

Cantidad : 1 - Precio : 500USD

Diamond core drill rig which is also named as core drill stand, core drill holder. It consists of a vacuum or non-vacuum base, column and carriage. It is an indispensable part of diamond core drilling system. If you are going to drill holes with more than 100mm in diameter, we recommend...

Sábado 24 agosto 2019

Cantidad : 500KK/Mont - Precio : USD 3.1 Above

SMD color consistency is good. The dispensing process adopts centrifugal technology to enhance the uniformity of the light spot and good heat dissipation. Product Advantages of Rgb Smd Led Chip All colors included customized wavelength. Red light: 620-630NM (R620), Green light: 520-530NM(G520)...

Martes 20 agosto 2019

Cantidad : 80000Pcs - Precio : 3-50USD

For analogue hearing aids buy, don't hesitate to contact. A traditional simply makes the sound wave larger to amplify sounds. The conventional analog hearing aids are designed with a specific frequency response based on the listener's audiogram. In turn, the audiologist directs the...

Domingo 18 agosto 2019

Cantidad : 1

MD-T1 MEDITECH MD-T1 Fluid warmer is an ultra compact and lightweight heater for all IV fluids.helps to decrease the temperature difference between the animal and the IV liquid.The animal needs less energy for maintaining his body temperature. Similar to the VET HM heating mat, the...

Jueves 15 agosto 2019

We need to check if the temperature of the pipette </ a>is different from the temperature difference between the pipette and the tip, which affects the accuracy of the pipette. In general, when the temperature of the removed liquid does not match the temperature of the tip and the pipette...

Jueves 15 agosto 2019

In the detection of air pollution, taking samples with glass fiber extraction thimble is a common method. And here we will focus on one reason having an influence on weighing the extraction thimbles, which is the air humidity. As we all know, the environment when analyzing is limited...

Jueves 15 agosto 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...

Miércoles 14 agosto 2019

Cantidad : 1 - Precio : 5,96 €

Michelle Chen CHONGQING LANREN ALUMINIUM CO., LTD NO. 23‐4, JIANGNAN AV.NANPING, NANAN DISTRICT, CHONGQING CITY, CHINA. 400060 Tel: +86‐23‐62912580 I Fax: +86‐23‐62603711 WhatsApp: +8615736215804 Email: lanren100@outlook.com www.lanrenaluminium.com I www.zglrmy.com Ubicación : No...

Miércoles 14 agosto 2019

Cantidad : 1 - Precio : 5,89 €

Michelle Chen CHONGQING LANREN ALUMINIUM CO., LTD NO. 23‐4, JIANGNAN AV.NANPING, NANAN DISTRICT, CHONGQING CITY, CHINA. 400060 Tel: +86‐23‐62912580 I Fax: +86‐23‐62603711 WhatsApp: +8615736215804 Email: lanren100@outlook.com www.lanrenaluminium.com I www.zglrmy.com Ubicación : No...

Sábado 10 agosto 2019

Cantidad : Proofing b - Precio : 200-1500CNY

What is High Tg PCB When the temperature rises to a certain area, the substrate will change from "glass state" to "rubber state", and the temperature at this time is called the glass transition temperature (Tg) of the plate. That is, Tg is the highest temperature (°C) at which the...

Viernes 09 agosto 2019

Filter Paper is a tool commonly found in chemical laboratories for separation of two-phase, and usually round in shape. To filter two phases so as to separate and purify matter, most of the filter paper is made of cotton fiber and is made in different ways for different purposes....

Miércoles 07 agosto 2019

The thimble is utilized in extraction, so the dissolution rate of impurities is a comparatively deductive target. For the deficient data of cellulose extraction thimbles, the mental content in glass fiber ones has to be tested, and respective results of different sizes are listed...

Martes 06 agosto 2019

Cantidad : 100000 squ - Precio : 25,50 €

Descripción del producto: Como un producto emergente en decoración y protección arquitectónica, el acero inoxidable es un material ideal y muy versátil, la malla de cable de acero inoxidable ha proporcionado a la decoración arquitectónica moderna y a la ingeniería de la horticultura...

Viernes 02 agosto 2019

Flash column pressure has something to do with the form of silica gel, the mesh number, the synthesis condition of filler, the condition of column packing, the mobile phase, and the temperature when analyzing. Different manufacturers' new flash columns, their column pressures may...

Jueves 01 agosto 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...

Jueves 01 agosto 2019

Ceramic membranes (Porous Ceramic Membrane & tubular ceramic membrane) are available for microfiltration, ultrafiltration and nanofiltration as single-channel or multiple-channel elements with channel diameters between 2 and 16mm. Their main characteristics of porous tubular ceramic...

Miércoles 31 julio 2019

- Description of Top Entry Ball Valve: - ZECO top entry ball valve is widely used in oil and natural gas pipelines (industrial valve). Top entry ball valve and side entry ball valve are also divided into floating structure and trunnion mounted structure, the main difference between...

Miércoles 31 julio 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...

Sábado 13 julio 2019

It is important to choose the suitable heat conduction medium, to make sure that system works stably. To choose the suitable medium according to the working temperature of the system is essential. How to Determine Freezing Water Flow Rate? A lot of people will ask such a question...

Viernes 12 julio 2019

Note on the filter paper box that when using the quantitative and qualitative analysis filter paper to filter the precipitate: 1. Generally uses natural filtration, using the filter paper body and the ability to retain solid particles to separate the liquid and solid; 2. Because the...

Jueves 11 julio 2019

The formation of a flash phenomenon The boiling point of water is higher than 100℃ when the water is heated under a certain pressure. The higher the pressure, the higher the boiling point of water and the higher the heat content. When the pressure decreases, some sensible heat is released...