SEPARATION - 1351 ads
Friday, January 03, 2020
Operation of HPLC Columns In daily separation analysis, it is significant to properly use column, or the service life of the column efficiency of it can be directly affected. In the course of column loading, unloading or replacement, strong mechanical vibration should be prevented...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Friday, December 27, 2019
Quantity : Output cap
Description: By its very design, the Micro-D connector system meets all the requirements of robustness, durability, low contact resistance, high current, dielectric strength, shock, and vibration. With 1.27 mm (.050") contact spacing, Micro-D connectors, half the size of D-sub connectors...
SUNKYE INTERNATIONAL CO., LTD.
- 999057 - HK
- +85 2 69 48 67 97
Friday, December 13, 2019
FLASH column is a sample pretreatment technology developed by the combination of liquid-solid extraction and column liquid chromatography. It is mainly used for sample separation, purification and concentration which has been widely used in medicine, food, environment, commodity inspection...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Friday, December 13, 2019
Known as surface filtration, membrane filtration is a process that the solid particles can be separated through a very thin filter medium. The particles are usually larger than the pore size of the membrane. During separation, a semi-permeable membrane acts as a selective barrier...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Thursday, December 12, 2019
QuEChERS is a streamlined technique that makes it easier and cheaper for analytical chemists to examine the pesticide residues in agricultural products. It is exploited by many professors of the American Ministry of Agriculture in 2003, especially Anastassiades. This technique shares...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Thursday, December 12, 2019
As a unique chromatography technique that pushes solvent through the column uses by compressed gas or a pump, flash column chromatography is highly appreciated as an advance technique because it makes flow rates of the solvent much faster than the gravity flow. Developed in the 1970's...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
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...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Tuesday, December 10, 2019
The protective HPLC columns influence the separation result. First of all, the protective column has a good positive effect on the experiments. Even if the stationary phase is chosen incorrectly, the protective column can also be effective for separation. The protective column is...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Tuesday, December 10, 2019
To select the appropriate SPE cartridge, we normally consider it from two aspects: the selection of adsorbent and specification of the cartridge. The use of appropriate adsorbent can achieve good separation between interfering substance and target component, and also meet the requirement...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Friday, November 01, 2019
Quantity : 200 units - Price : 7000-28000 USD
Floor shot blaster is a kind of shot blasting machine for concrete floors, steel plates. The floor shot blaster can clean up the floatation and impurities on the surface of the concrete at one time. It can also roughen the surface of the concrete road to make it uniform and rough...
QINGDAO QINGGONG SETH MACHINERY CO., LTD.
- 266400 - Shandong
- 0532 82121566
Tuesday, October 29, 2019
Quantity : 200 units - Price : 7000-28000 USD
We have blast room for sale! Air blast room with pneumatic media reclaim system – An economical alternative, vacuum reclaim systems utilize cyclone separators to recover usable media to the blast machine, while dust and broken-down media are drawn out into the dust collection system...
QINGDAO QINGGONG SETH MACHINERY CO., LTD.
- 266400 - Shandong
- 0532 82121566
Tuesday, October 29, 2019
Quantity : 200 units - Price : 7000-28000 USD
The Barrel Machine line provides outstanding performance and reliability. Designed for foundry, forge and heat treat requirements. The Barrel machine is the ideal solution to clean small to medium size parts that would normally become jammed in traditional Tumblast machine. The Barrel...
QINGDAO QINGGONG SETH MACHINERY CO., LTD.
- 266400 - Shandong
- 0532 82121566
Tuesday, October 29, 2019
Quantity : 200 units - Price : 7000-28000 USD
We have floor shot blaster for sale! Floor shot blaster is a kind of floor blasting equipment for concrete floors, steel plates. The floor shot blaster can clean up the floatation and impurities on the surface of the concrete at one time. It can also roughen the surface of the concrete...
QINGDAO QINGGONG SETH MACHINERY CO., LTD.
- 266400 - Shandong
- 0532 82121566
Tuesday, October 29, 2019
Price : 30-210 USD
Hard Gold PCB, immersion gold pcb, is to immerse the board in the plating tank and apply current to form a nickel-gold coating on the copper foil surface of the board. The electro-nickel gold is characterized by high hardness, wear resistance and oxidation resistance. Widely used in applications...
Shenzhen Huhe Circuits Co.,Ltd.
- 518103 - Fuyong Street
- +15 9 76 88 36 32
Thursday, October 24, 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...
Jiangsu Jiuwu Hi-tech Co., LTD
- jiuwu
- 211808 - nanjing
- 025 58109595
- +86 025 58109595
Thursday, October 24, 2019
JIUWU company produces the ceramic ultrafiltration membranes with the pore size 20nm, 50nm and so on. JIUWU company offers a large choice of ceramic uf membrane filter with different geometries and cut-offs to meet your process requirements in viscosity, molecule size, impurity profile...
Jiangsu Jiuwu Hi-tech Co., LTD
- jiuwu
- 211808 - nanjing
- 025 58109595
- +86 025 58109595
Thursday, October 24, 2019
The organic membrane is a material having a selective separation function, and when there is a driving force on both sides of the membrane (such as a pressure difference, a concentration difference, a potential difference, etc.), the raw material component selectively permeates the membrane...
Jiangsu Jiuwu Hi-tech Co., LTD
- jiuwu
- 211808 - nanjing
- 025 58109595
- +86 025 58109595
Thursday, October 24, 2019
In order to meet the scientific requirements of scientific research institutes and enterprises in the early research and development of feed liquid amplification, and we specially design and develop small & pilot machine, which can easily avoid many uncertain factors in the transformation...
Jiangsu Jiuwu Hi-tech Co., LTD
- jiuwu
- 211808 - nanjing
- 025 58109595
- +86 025 58109595
Thursday, October 24, 2019
The ceramic microfiltration membrane element ( MF membrane) is made from alumina and zirconia which is an asymmetric membrane structure with multi-channel tubular shape. The pore is on the channel. Driven by operation pressure, the liquid is running in the membrane. The part less...
Jiangsu Jiuwu Hi-tech Co., LTD
- jiuwu
- 211808 - nanjing
- 025 58109595
- +86 025 58109595
Thursday, October 17, 2019
Pendulum mill is also called as suspension roller or pendulum roller mill. It is a "ring and roller" powder-making mill equipment, which is combined with air flow screening and pneumatic conveying. The pendulum grinding mill belongs to the roundel immovable mill and has high universality...
Guilin Mining Machinery Co., LTD.
- 541299 - Guangxi Province
- 0773 6812095
Saturday, October 12, 2019
The stationary phase, commonly known as the fillers, is the most central part of chromatography. People need to determine three aspects of stationary phase information in turn before determine how to select the kind of the stationary phase of the flash purification column. They are matrix type...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Saturday, October 12, 2019
The filter cartridge is a professional term with the function of filtering and purification. It is also a simple device for separating the original fluid and fluid. It mainly includes gas-liquid separation, solid-liquid separation, exhaust and dust filtration, and environmental protection...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Thursday, October 10, 2019
Extraction thimble is an instrument for extraction and separation of organic compounds according to the principle of Soxhlet extraction. Extraction thimble provided by our company is made of high quality and purity materials, which is characterized by high mechanical strength and...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Thursday, October 10, 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...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Wednesday, October 09, 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...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Wednesday, October 09, 2019
Generally speaking,with the increase of temperature, the viscosity of the mobile phase decreases. The situation will lead to an increase in the transfer rate of the substances. Thus the chromatographic separation effect will be better than before. Although the separation effect has been improved...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Wednesday, October 09, 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...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Tuesday, October 08, 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...
Hawach Scientific Co.,Ltd.
- 710077 - Xi'an
- +86 29 89284429
- +15 1 02 91 81 33
Monday, September 30, 2019
Pendulum mill is also called as suspension roller or Raymond mill. It is a "ring and roller" powder-making mill equipment, which is combined with air flow screening and pneumatic conveying. The pendulum grinding mill belongs to the roundel immovable mill and has high universality...
Guilin Mining Machinery Co., LTD.
- 541299 - Guangxi Province
- 0773 6812095
Monday, September 30, 2019
SMD means surface mounted diode. This is a better technology than the first generation DIP LEDs. The SMD type LEDs are mounted on an aluminum substrate and enveloped in an epoxy resin. SMD LED package size: 5050, 3030, 2835, 3535, etc. Overview of types of SMD LED White SMD LED...
Shenzhen Crescent Optoelectronic Co., Ltd.
- 518106 - Shenzhen
- 0086 755 81735121
- 0086 130 2886 8997





