PHASE - 2705 Anuncios

Wednesday 11 September 2019

When storing the column, the column should be filled with acetonitrile or methanol, and the column joint should be tightened to prevent the solvent from evaporating and drying. It is absolutely forbidden to leave the buffer solution in the HPLC columns for an overnight or longer period of time...

Wednesday 11 September 2019

The structure of the SPE cartridge is mainly divided into four parts: column tube, sieve plate, adsorbent and supporting device. The characteristics of each part are briefly introduced below. Column tube: A carrier for the adsorbent, made from serum grade polypropylene. Commonly used...

Tuesday 10 September 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...

Sunday 08 September 2019

Cantidad : 10 - Precio : 50000-110000

1.Drop Tower is a type of free fall tower amusement rides, based around a central structure of tower. And it is very popular among teenagers. Cool decoration, special lights and sound system create its success. 2.The Drop Tower Ride is one of the newest thrill rides in Sinorides....

Saturday 07 September 2019

There are bubbles in the mobile phase, the pump is turned off, the pressure relief valve is opened, the purge button is turned on, the degas is cleaned, the bubbles are continuously ejected from the HPLC column, and the mobile phase enters the mobile phase. No matter how many times...

Friday 06 September 2019

Cantidad : 1000 pcs - Precio : USD80-USD230

Brushless DC electric motor (BLDC motors, BL motors) also known as electronically commutated motors (ECMs, EC motors), or synchronous DC motors, are sensored brushless motor powered by DC electricity via an inverter or switching power supply which produces an AC electric current to...

Tuesday 03 September 2019

Chemical properties of the chromatographic column could affect the performance of the C18 HPLC column. Performance factors of C18 HPLC columns: bonding type Single tooth bonding can improve the mass transfer rate and accelerate column balance. Double tooth bonding can increase the...

Tuesday 03 September 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...

Tuesday 27 August 2019

Cantidad : 1PCS - Precio : 28-38USD

Overview WEM3080T is a Din rail, 3 phase energy monitoring devices. It can be easily installed and fit neatly inside your electricity panel, and provides insight into your energy consumption and analysis through our dedicated Online Energy Consumption Monitoring System (https://www...)

Thursday 22 August 2019

QuEChERS is an extraction method for pesticides in fruits and vegetables. It is also a cleanup method we use to remove sugars, lipids, organic acids, proteins, pigments, and excess water. After the publication of the original QuEChERS method in 2003, QuEChERS has been practiced all...

Sunday 18 August 2019

Stimulating the coil makes a magnetic induction to the tested material. The induced electromotive force received by the testing coil is related to the shape and size of the material hysteresis loop. When the low-frequency sinusoidal wave excitation voltage is magnetically induced...

Saturday 17 August 2019

Cantidad : 500kg

The electrical junction box with busbar is a new type bus bar insulation cover, it is fabricated with high-quality raw materials in our state-of-the-art manufacturing unit. Silicone rubber busbar junction box is widely used in 1-35kV high & low voltage electrical distribution room...

Friday 16 August 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...

Friday 16 August 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...

Thursday 15 August 2019

Glass solvent filters are used for solvent particle removal and water phase mobile phase filtration. All components of glass solvent filters in contact with solvents are made of chemically inert glass or PTFE materials, which are used in combination with regenerated cellulose (RC)...

Thursday 15 August 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...

Wednesday 14 August 2019

Flash column chromatography is an alternative to long column chromatography developed in 1978. This method aims to separate the components from the mixture and thereby purify it. It is built from existing long column chromatography techniques and is time-consuming and often unsatisfactory...

Wednesday 14 August 2019

Physical properties of the chromatographic column could affect the performance of C18 HPLC columns. - Performance factors of C18 HPLC columns: - Silica gel purity Class A silica gel has high residual silica hydroxyl with a negative charge and high metal content on the acidic surface...

Wednesday 14 August 2019

The important technical parameters of Hawach SPE Columns are the key points of selection. Material The material selection of the SPE column is very important. The column material is in direct contact with the test object or analyte. The quality of material selection determines the...

Tuesday 13 August 2019

Syringe filter is suitable for filtering a small number of samples in the laboratory because of its low adsorbability. The low adsorbability ensures a large amount of recovery of small or high-value samples. The shell of the filter will not pollute the samples. It has stable quality...

Monday 12 August 2019

The rapid chromatographic method is a technology widely used in the separation and purification of active target compounds, such as organic compounds, natural products, and biological macromolecules. Rapid chromatographic method has the advantages of easy-operation, low-price, and fast-analysis...

Monday 12 August 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...

Monday 12 August 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 10 August 2019

Cantidad : Proofing b - Precio : 500-1500CNY

Custom flex pcb china from PCBSKY, pcb manufacturer in china shenzhen, a TRUE PCB MANUFACTURER. Because of the advantages (for example, cost, space, and weight savings) that flexible and Rigid-Flex-circuit boards have for some projects, they are used ever more frequently. PCBSKY can...

Friday 09 August 2019

Cantidad : 25kg - Precio : FOB Qingdao 2.4-2.9$

Description of cmc oil drilling grade cmc oil cmc drilling cmc hv & PAC CMC & polyanionic cellulose pac polyanionic cellulose can be used as fluid loss reducer or viscosifier in drilling fluids. The function of CMC is to reduce the fluid loss as much as possible through forming...

Friday 09 August 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....

Friday 09 August 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...

Thursday 08 August 2019

More than 90% of gas chromatographic problems occur in the inlet, and it is necessary to see which problems may occur in the inlet. Problem No.1: Leak If there is a leak, the pressure on the inlet may not be maintained, and the instrument will alarm. If the problem cannot be solved in time...

Thursday 08 August 2019

Flash columns adopt high-capacity silica gel for precise filling, which has very excellent separation and purification performance. The specific surface area of high-capacity spherical silica gel is 40% higher than that of ordinary spherical silica gel, and the sample loading is twice...

Thursday 08 August 2019

Chromatography is a separation and analysis method and the separation is the core. Therefore, HPLC columns are the heart of the chromatographic system. The requirements for the column are high efficiency, good selectivity and fast analysis speed. Generally, the column length of about...