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Wednesday, December 11, 2019

Flow Process of HPLC column First, the solvent in the storage bottle is pumped into the chromatographic system by pump and then output, and then introduced into the sampler after flow and pressure measurement. Second, object to be tested is injected by the sampler, passes through...

Tuesday, November 26, 2019

Quantity : 30000 Unit - Price : 5000-50000USD

Led Truck is also called LED Advertising Truck, LED Billboard Truck, which is mainly design for advertising purpose. LED Advertising Truck include a truck chassis, large screen system, power supply system, and an operating system. It is widely used in publicity, product promotion...

Friday, November 08, 2019

Quantity : 500sets - Price : USD 5w-USD180w

As one of the most professional sandwich panel line manufacturers, This polyurethane sandwich panel machine made up of un-coiler machine, roll forming system, High pressure foaming system, mobile injector system, Double belt laminates system, Cut-off system, Auto stacking and package system...

Tuesday, October 29, 2019

Price : 30-210 USD

Custom high frequency pcb from professional pcb manufacturer china shenzhen with factory price in low cost. The high frequency of electronic equipment is a development trend, especially in the development of wireless networks and satellite communications, the high-speed and high-frequency...

Saturday, October 26, 2019

Quantity : 1 20ft con - Price : 15-30 USD/m2

Sundi Bird Feeder is one part of garden products with full series, whose design is the key point. It is a kind of small WPC products that is suitable for developing interet in bird, which is a embodiment of our core concept-Green Life. Combined the nature concept with life, the one...

Sunday, October 13, 2019

Quantity : 30000 Unit - Price : 5000-50000USD

Led Truck is also called LED Advertising Truck, LED Billboard Truck, which is mainly design for advertising purpose. LED Advertising Truck include a truck chassis, large screen system, power supply system, and an operating system. It is widely used in publicity, product promotion...

Friday, October 11, 2019

Are you looking for bird feeders in the garden? Sundi Bird Feeder is one part of garden products with full series, whose design is the key point. It is a kind of small WPC products that is suitable for developing interet in bird, which is a embodiment of our core concept-Green Life...

Friday, September 27, 2019

Non-Polar Interaction, the interaction between a non-polar functional group on a target compound and a non-polar sorbent, which is better reflected in a polar solvent environment, especially in a water environment. Also known as hydrophobic interactions, such as the interaction between...

Wednesday, September 25, 2019

Quantity : 1-200ton - Price : 10usd

The Characteristics of Silicone Rubber Insulation Product 1. Heat and Cold Resistance Since silicone rubber has high bond energy and good chemical stability, its heat resistance is better than that of organic polymers. Furthermore, since the intermolecular interaction force is weak...

Tuesday, September 17, 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...

Monday, September 16, 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...

Saturday, September 14, 2019

Led Truck is also called LED Advertising Truck, LED Billboard Truck, which is mainly design for advertising purpose. LED Advertising Truck include a truck chassis, large screen system, power supply system, and an operating system. It is widely used in publicity, product promotion...

Saturday, August 17, 2019

Quantity : 500kg

The Characteristics of silicone electrical insulation Product 1. Heat and Cold Resistance Since silicone rubber has high bond energy and good chemical stability, its heat resistance is better than that of organic polymers. Furthermore, since the intermolecular interaction force is weak...

Monday, August 12, 2019

Solid phase extraction principle Solid phase extraction is a separation technique that combines selective retention, selective elution, and the like. When a complex sample solution passes through the sorbent, the sorbent selectively retains the aimed compound and a small number of...

Saturday, August 03, 2019

SPE cartridge can be divided into three classes on the markets: silica-based cartridges, polymer-based cartridges, and adsorption-based cartridges. And here we talk about the three types of silica-based cartridges. The first type is the C18 cartridges. This kind of cartridges bond...

Wednesday, July 31, 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...

Saturday, July 13, 2019

When we talk about bank self-service terminals, we mainly refer to ATM and VTM. An automated teller machine (ATM) is an electronic telecommunications device that enables customers of financial institutions to perform financial transactions, such as cash withdrawals, deposits, transfer funds...

Friday, July 12, 2019

Today, Hawach want to talk about the pre-treatment process for pesticide residue detection from the perspective of food safety – QuEChERS, and also tell you how to pre-treat pesticide residue food. Introduction The present analytical methods and determining techniques, pre-treatment...

Monday, July 08, 2019

QuEChERS is a pretreatment that has the characteristics of Quick、Easy、Cheap、Effective、Rugged and Safe, which is the reason why it is becoming more and more popular in the new testing methods. It was developed by Professor Anastassiades in 2003, which was used in agricultural testing at first...

Monday, July 08, 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...

Thursday, July 04, 2019

Activation, also known as solvation, add a suitable solvent to expand the functional groups on the adsorbent and remove possible interferences on the adsorbent. Equilibrium, remove the activated solvent to create a suitable solvent environment for sampling. Usually, use the same solvent...

Monday, July 01, 2019

The aim of flash column chromatography is to separate components from the mixture and purify it. Briefly, flash column chromatography allows samples to be separated through columns filled with gels. Flash column chromatography has been widely used in organic chemistry since its inception...

Wednesday, June 19, 2019

In order to evaluate water quality, laboratory workers need to analyze the chemical constituents of water. At the same time, they have to consider the interactions between each constituent and the factor of photolysis when choosing the sample vial. It is better to shorten the sample's...

Friday, June 14, 2019

Quantity : 1000 - Price : 72,99 €

- LE MATELAS PARFAIT: le matelas parfait pour toutes exigences de repos et de poids. Il se compose de trois couches en mousse de très haute qualité ( mousse à froid + mousse Visco Smart (memory 2.0) + Mousse gel). Ces couches permettent un confort idéal car elles s'adaptent à notre...

Thursday, June 13, 2019

In order to evaluate water quality, laboratory workers need to analyze the chemical constituents of water. At the same time, they have to consider the interactions between each constituent and the factor of photolysis when choosing the sample vial. It is better to shorten the sample's...

Tuesday, June 11, 2019

Solid phase extraction (SPE) is a separation process by which compound that is dissolved or suspended in a liquid mixture, thereby being separated from other compounds in the mixture according to their physical and chemical properties. There are 4 general functions as below: 1.Matrix...

Monday, April 01, 2019

- Sunchi Hybrid Solar Air Conditioner Overview - - Cooling capacity 9000BTU/12000BTU/18000BTU/24000BTUInside building digital calculator to priority biggest using DC power, auto balance 220V city grid power. DC input range is DC50V~DC300V, so can connect max around 1500W solar PV...

Saturday, March 09, 2019

Quantity : 1unit - Price : 40usd/unit FOBNingbo

Hot sale precision 0.5 3-P 3-W LED multi-function low voltage switch gear use digital panel meter with RS485 *Power: AC/DC 85~265V ＜5VA. multifunction power meter with RS485 *Frequency: 45~65Hz *3-phase 3-wire,3-phase 4-wire. CE approved panel mount programmable switchboard LCD...

Monday, December 17, 2018

E-Lins GSM modems mainly cover BEST EDGE modem and GPRS modem. With USB port or serial RS232 / RS485 ports, the GSM modem provides mobile network data link for wireless M2M application. For single sim GSM GPRS modem, the main model is M300 and M400. Model Sim Slot Quantity Module...

Wednesday, November 21, 2018

Price : 1 USD

Ceramic circuit board precision laser cutting technique: irradiated under the laser beam, the femtosecond pulsed laser makes the energy rapidly infuse into the tiny area (10μm) in the peak power; the sedimentation of high energy density makes the change of the electronic absorption...