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Saturday, October 19, 2024

Quantity : 1mt - Price : 300USD

Molecular Sieve is an adsorbent with uniform pores that selectively adsorb and separate molecules based on size and polarity. - Molecular Formula: AICaNaO9Si3 - Molecular Weight: 318.299987792969 - UN Code.: N/A - Customs Code : 3824909990 - CAS NO.: 63231-69-6 - EINES NO.:...

Friday, June 07, 2024

Price : USD 150- 600

Organic Membrane 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...

Wednesday, May 22, 2024

PFA ion exchange column, also known as PFA chromatography column, PFA filtration column, etc. The principle is to use adsorbents to have different adsorption effects on different compounds and different solubility of different compounds in solvents, and to use suitable solvents to...

Tuesday, March 12, 2024

Price : USD1500 to USD3000

activated adsorbent is a material that has the ability to attract and hold molecules, ions, or particles on its surface. It is commonly used in a variety of applications, such as water purification, air filtration, and industrial waste treatment. calcium chloride adsorbent are available...

Tuesday, August 22, 2023

Price : USD1500 to USD3000

Adsorbent is a material that has the ability to attract and hold molecules, ions, or particles on its surface. It is commonly used in a variety of applications, such as water purification, air filtration, and industrial waste treatment. Adsorbents are available in a variety of forms...

Thursday, June 08, 2023

Water treatment plant chemicals are chemicals used to remove pollutants from water. These chemicals can be used to treat both drinking water and wastewater. Common water treatment products include chlorine, alum, caustic soda, sodium hypochlorite, and polymers. Chlorine is used to...

Thursday, November 17, 2022

Quantity : 20000Ton - Price : USD0.6~USD2

Non-woven polypropylene fabric (nwpp fabric), or the so-called PP non-woven fabric, is a non-toxic, odorless, milky white highly crystalline polymer. It is one of the lighter types of plastics, with low water absorption and good form-ability. The surface of the non-woven polypropylene...

Saturday, August 21, 2021

Injection mold is a tool for producing plastic products; it is also a tool for giving plastic products a complete structure and precise dimensions. Specifically, it refers to injecting the material melted by heat into the mold cavity by high pressure, and after cooling and solidifying...

Thursday, April 09, 2020

Advantages of HAWACH Flash Column 1.Impurity dissolution rate: the materials are all medical-grade PP and PE, which have strong corrosion resistance and low impurity content. There is low probability of impurity dissolution. 2.Diversity of options: a large number of series/types,...

Tuesday, March 31, 2020

SPE technology is a physical extraction process including liquid phase and solid phase based on the theory of liquid-solid chromatography, which uses selective adsorption, selective elution to enrich, separate and purify the sample. In daily application, SPE cartridge can also be...

Tuesday, March 24, 2020

The capacity of the SPE cartridge refers to the adsorption amount of the column packing. For silica-based solid-phase extraction columns, the capacity is generally 1 to 5 mg/100 mg, which means that the column capacity is 1% to 5% of the mass of the packing. The capacity of the bonded...

Tuesday, March 10, 2020

1.Mixed-mode cation exchange r: A mixed adsorbent having strong cation exchange and reverse retention, which is highly selective for alkaline analytes, stable in organic solvents. 2.Weak cation exchanger: Weak cation exchange and reverse retention complex mechanism, which is used...

Monday, January 20, 2020

As we know, five steps required for solid phase extraction cartridge: sample preparation, activation or equilibration of the column, loading, rinsing and eluting the compound of interest. There is no uniform regulation for that the solid phase extraction cartridge should be activated...

Sunday, January 19, 2020

The QuEChERS method is a sample preparation technology based on solid-phase extraction and matrix solid-phase dispersion technology. It is suitable for the treatment of low-fat samples and can achieve ideal results for samples containing less than 15% fat. Because of its simple operation...

Monday, January 13, 2020

The dispersed solid phase extraction kit is selected based on the type of food being analyzed and the method used. In this step, the extracted sample is added in equal amounts to a 2 ml or 15 ml centrifuge tube. The centrifuge tube contains a small amount of solid phase extraction...

Monday, January 06, 2020

Hawach solid phase extraction cartridges are designed for sample pretreatment to remove or minimize sample matrix and other interferences to “clean up” a sample prior to analysis. This procedure can also concentrate an analyte to achieve the desired sensitivity range of an analytical method...

Monday, December 16, 2019

The capacity of the SPE cartridge refers to the adsorption amount of the SPE cartridge packing. For silica-based SPE cartridge, the capacity is generally 1 to 5 mg/100 mg, that is, the cartridge capacity is 1%~5% of the mass of the packing. The capacity of the bonded silica ion exchange...

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...

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...

Sunday, October 13, 2019

Solid phase extraction is a sample preparation method based on the chromatographic analysis. Solid phase extraction includes a solid phase (adsorbent with a certain functional group) and a liquid phase (sample and solvent). The liquid sample passes through a solid phase extraction...

Thursday, October 10, 2019

QuEChERS firstly came out in 2003. The inventors of QuEChERS, Michelangelo Anastasiades and Steve Lehotay, were asked for the three biggest improvements in this method from development to now. They made the following statement. In the period of conceiving the method QuEChERS, we have...

Monday, September 30, 2019

The purifying agent holds an important position in the QuEChERS pre-treatment method. An appropriate selection and application of it would be necessary for the users to improve the efficiency of purification and accuracy of the sampling detection result. Selection of purifying agents...

Monday, September 30, 2019

SPE is a kind of sample production technology which is more and more useful in which many problems related to liquid and liquid extraction could be avoided, such as the incomplete separation, non-quantitative recycle, the use of expensive and fragile glass vessels, massive organic...

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

Knowledge of QuEChERS Quick, Easy, Cheap, Effective, Rugged, Safe are generally abbreviated to QuEChERS. It is a sample pretreatment method for agricultural product detection. It is used to absorb and remove impurity, and the operational principle is similar to high-performance liquid...

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

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...

Monday, September 23, 2019

The reason for the QuEChERS matrix effect in the liquid state is generally considered to be due to the non-volatile components in the matrix and the substance to be tested, which competes in the ionization process. The matrix effect in gas phase temperament is generally attributed...

Monday, September 23, 2019

Let's take a look at two common adsorbents for adsorption chromatography. Polyamide The polyamide adsorbent can be divided into nylon 6 (polycaprolactam) and nylon 66 (polyhexamethylene adipamide), which are hydrogen bond adsorption and semi-chemical adsorption. There are many amide...

Friday, September 20, 2019

Solid phase extraction is essentially a liquid chromatographic separation. The main separation mode is the same as that of liquid chromatography. It can be divided into normal phase (the polarity of the adsorbent is greater than the polarity of the eluent), and the reverse phase (the...)