COLUMNS - 1404 ads

Saturday, October 12, 2019

Quantity : 1set - Price : 300000usd

The feeding component is used for material automatic feeding includes screw feeding machine, automatic supplement machine and material hopper machine, etc. The screw feeding system completes different length of screw feeding and works with the automatic screwing machine, which is...

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...

Saturday, October 12, 2019

1. Leakage at joint Generally, it can be solved by tightening, cleaning and replacement. 2. Pump leakage Check whether the one-way valve and joint are loose, if loose and tightened (not too tight), check whether the seal of mixer and pump is damaged; 3. Leakage of injection valve...

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...

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...

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...

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...

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...

Tuesday, October 01, 2019

Diamond portable 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...

Monday, September 30, 2019

Quantity : 10set/mont - Price : 0-1 million US dolla

Concrete placing boom used to deliver and place the concrete, which is connected to a concrete pump. As an auxiliary equipment for concrete pump, it can deliver the concrete quickly and accurately through the connected like a mechanical hand. It also expands the concrete pumping area...

Monday, September 30, 2019

Quantity : 10set/mont - Price : 0-1 million US dolla

TRUEMAX column inner climbing concrete hydraulic placing boom is TRUEMAX star product in all TRUEMAX products range. Because of the automatic climbing mechanism which is equipped in placing boom, it can be climbed by hydraulic cylinder and lifting as the building rise its height....

Monday, September 30, 2019

Quantity : 6000pc/mon - Price : $90-$350

We have various cheap plus size bridesmaid dresses for you to choose! Black Off Shoulder Mermaid Satin Prom Dress with Slit #6094 Emerald Green Long Satin Prom Dress with Lace Up Back #6092 Red Tight Fitted Spaghetti Straps Simple Prom Dress with Slit #6067 Black Chiffon Two Pieces...

Monday, September 30, 2019

Merits of Flash Column Flash column provided by Hawach scientific provides with many merits and unique properties, which makes it obtain consistent confidence and build a good image in the market. Specific merits are as follows, product model is complete, specifically including 15...

Monday, September 30, 2019

HPLC columns are widely used in many fields, whose column efficiency, capacity, permeability characteristics, and service life are very important. After using for a period of time, there will be changes such as column pressure increase, column efficiency decrease, etc. If no measures are taken...

Sunday, September 29, 2019

Hawach glass solvent filter is made of high-quality borosilicate glass, which can be used to filter various aqueous solutions, organic substances, and corrosive liquids. The glass Solvent filter is available in one liter and two liters and consists of a triangular liquid collection bottle...

Sunday, September 29, 2019

There are many types of chromatographic methods, and different classification methods can be used from different perspectives. Classification from the state of two phases. In the chromatography, the mobile phase may be a gas or a liquid, and thus can be classified into gas chromatography...

Saturday, September 28, 2019

Depending on the packing of the HPLC column. The following column types are available on the market: 1. Silica gel HPLC column: Silica gel is the earliest chromatographic column packing used in liquid chromatography. It has a wide range of applications. However, it can only be used...

Friday, September 27, 2019

Quantity : 1-2000 uni

ITEM: Walk Through Metal Detector DETECTING ZONES: 18 Zones LCD SCREEN: 5.7 Inch LCD Screen CONTROL UNIT: Both Sides LED Door DETECTING STANDARD: One Yuan Coin ALARMS METHODS: Sound & Light Alarm SENSITIVITY: 0 To 255 POWER: AC90V-250V , 50HZ-60HZ OUT FRAME: ...

Friday, September 27, 2019

Quantity : 1-2000 uni

DETECTING ZONE: 6 Zones POWER: <20W</td> DOOR MATERIAL: : PVC Material COLOR: Siver, Or Black POWER SUPPLY: AC90V-250V 50HZ-60HZ WEIGHT: 75kg DIMENSION: 2200mm (H) *800mm (W)*500mm (D) CHANNEL DIMENSION: 2010mm (H) *700mm (W)*500mm (D) OPERATING ENVIRONMENT...

Friday, September 27, 2019

Quantity : 1 - Price : 2000USD

The common mill can be divided into the ball mill, column mill, bar mill, tube mill, self-grinding machine, rotary mortar roller mill, vertical mill, multi-layer vertical mill, vertical roller mill, disc mill, DMC mill and so on. For the mill has a small footprint, the finished particle...

Friday, September 27, 2019

Reliable flash columns play a decisive role in a good chromatographic separation method, which ensures complete separation of valuable compounds and specific impurities. Choosing the right flash column is the most critical part of the purification process. There are two aspects should...

Thursday, September 26, 2019

Concrete placing boom used to deliver and place the concrete, which is connected to a concrete pump. As an auxiliary equipment for concrete pump, it can deliver the concrete quickly and accurately through the connected like a mechanical hand. It also expands the concrete pumping area...

Thursday, September 26, 2019

TRUEMAX column inner climbing concrete hydraulic placing boom is TRUEMAX star product in all TRUEMAX products range. Because of the automatic climbing mechanism which is equipped in placing boom, it can be climbed by hydraulic cylinder and lifting as the building rise its height....

Thursday, September 26, 2019

- Reversed-Phase Principle - The reversed-phase filler is a kindly of nonpolar filler such as C4, C8, C18 aliphatic chain which is bonded on the silica gel. Nonpolar or hydrophobic compounds are strongly reserved, while polar samples are weakly reserved and go through the flash reversed-phase...

Wednesday, September 25, 2019

Quantity : 1 - Price : 4800-35000usd

4 axis CNC router for full automatic 3D machining of carving, engraving, marking, cutting, turning, drilling, milling or grooving. 4 axis cnc router machine is available for wood (softwood, hardwood, solid wood, plywood, MDF),fabric, leather, PVC. And 4 axis cnc woodworking machines...

Wednesday, September 25, 2019

General requirements for adsorbents: large surface area and certain adsorption capacity. Does not chemically change with the developing agent, does not react with or catalyze, decompose or associate with the substance to be separated, and the particles are uniform. Silica gel and...

Tuesday, September 24, 2019

Suitable for a general flash chromatography method analysis, the flash column chromatography is the method of isolating a component from a mixture and purify it as well. Different from the old method: long column chromatography technology, flash column chromatography can separate...

Tuesday, September 24, 2019

Ion Chromatography is one of high-performance liquid chromatography (HPLC) and is a liquid chromatography method for the analysis of anions and cations. In a narrow sense, ion chromatography is a chromatographic method in which a low exchange capacity ion exchange resin is used as...

Tuesday, September 24, 2019

There are many factors to select a product, but on the way back, the only two words lingering in my mind are “parameters” and “Quality assurance”. All that's left is the word “Quality assurance”, which is getting bigger and bigger and more distinct and lingering – or, to put it more simply...

Tuesday, September 24, 2019

Quantity : 1 - Price : 7800-200000usd

Features of Centrifugal Dewatering Machine Processing Capacity: 1-10Tons/hour Application Scope: Cassava or potato starch dewatering Product Introduction: Centrifugal dewatering machine, centrifugal dewater machine, cassava dewatering machine, cassava starch dewatering machine for...