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Monday, March 30, 2020

1. Why does the QuEChERS approach recommend use dry ice or liquid nitrogen homogenizing frozen samples and extracting samples while frozen? The frozen samples were homogenized with dry ice or liquid nitrogen, and the samples were made into a fine powder (smaller particle size, more homogeneous)...

Wednesday, March 25, 2020

Character of syringe filter 1. The PTFE membrane of the syringe filter is completely made of natural and permanent hydrophobic PTFE material. Even under a very low pressure difference, it can ensure that moist air or other gases can pass without hindrance, while the aqueous solution...

Monday, March 23, 2020

Advantages of flash column FLASH chromatography is used for preparation and has the following advantages: 1. Fast speed, generally 1/8 of the separation time of open column chromatography, saving time, slow sample change and decomposition 2. Large preparation volume, at least as compared...

Friday, March 20, 2020

Quantity : 20MT/month - Price : 6.90 USD/Kilogram

Classification: Pharmaceutical Intermediates Cas NO.: 543-49-7 Molecular Formula: C7H16O Melting Point: -30.15°C Boiling Point: 160-162 °C(lit.) Stability: Stable. Flammable. Incompatible with strong oxidizing agents, strong acids. Refractive index: n20/D 1.420(lit.) Flash Point: 140 °F Purity...

Tuesday, March 17, 2020

Quantity : 200,000 pc - Price : usd160-500

Reverse osmosis (RO) is a water purification technology that uses a semipermeable membrane to remove ions, molecules, and larger particles from drinking water. Ro membrane technology is one of the most powerful tools to solve the world water crisis. We have rich experiences in RO...

Tuesday, March 17, 2020

Quantity : 200,000 pc - Price : usd160-500

The membrane area of CMP pilot machine has the following types: 0.1 m², 0.2 m², 0.5 m², 1 m², 2 m², 3 m², 4.5 m², 5 m², 6 m², 6.5 m², 8 m², 9 m² FEATURES OF CMP PILOT MACHINE Due to higher membrane velocity, reduce the accumulation of pollutants in the membrane surface, increase membrane flux...

Tuesday, March 17, 2020

Cleaning and storage of HPLC column Have a good understanding of the sample made, and wash it with the mobile phase that has the strongest eluting capacity for the sample. For silica gel HPLC column, first wash away the polar impurities with methanol, then use dry dichloromethane...

Tuesday, March 17, 2020

How to understand the chromatographic separation? Put it in short, the more similar the separated substance to the stationary phase, the longer the residence time on it. In this way, different substances in a complex mixed solution can be separated according to time, and the separated...

Monday, March 16, 2020

Our products are the things used in the QuEChERS method, including two major categories: extraction boxes and purification boxes; extraction boxes include salt bags and 50ml centrifuge tubes, but due to the high shipping costs of 50ml centrifuge tubes and common in customer laboratories...

Sunday, March 15, 2020

Quantity : 200MT/mont - Price : 30 USD/Kilogram

Classification. Organic Acid Refractive index.1.3 Cas NO.: 76-05-1 Flash Point: -3 oC Molecular Formula: C2HF3O2 Purity: 99.5% Melting Point: -15%C Appearance: clear liquid Boiling Point: -15.4 °C usage: industrial and medical use Stbilty: Stable. Incompatible with combustible material...

Sunday, March 15, 2020

Quantity : 300MT/mont - Price : 1450 USD/Metric Ton

Classification: Organic Intermediate Refractive index1.437-1.439 Cas NO.: 127-19-5 Flash Point: 151° F (NTP, 1992) Molecular Formula: C4H9NO Purity: 99.5% Melting Point: -20°C Appearance: Clear, colorless liquid Boiling Point: -4° F (NTP, 1992) usage: industrial and medical use Stability: Stable...

Sunday, March 15, 2020

Quantity : 200MT/mont - Price : 1.2 USD/Kilogram

Classification. Chloride Refractive index: Cas NO.: 7646-85-7 Flash Point 732*C Molecular Formula: CI2Zn Purity: 96% or 98% Melting Point: 167-172 °C Appearance: clear to cloudy colorless or faintly Boiling Point: 219-220 °C at 10 mmHg yellow Stabilit: Stable under normal temperatures...

Friday, March 13, 2020

Quantity : 4 pcs - Price : USD 10-470

Advantages of rubber: 1. It can be made into products of various shapes and different hardness, with outstanding elasticity and sufficient strength; 2. It can make the natural frequency of the vibration isolation system lower and have higher damping. 3. No matter in tension, compression...

Friday, March 13, 2020

Generally, vacuum filtration can be used for collecting a desired solid too. Do not use vacuum filtration to filter a solid from a liquid if it is the liquid that you want for your applications. If the liquid is a low boiling, vacuum filtration is not a good choice either, because...

Wednesday, March 11, 2020

Column chromatography is found important in the labs due to its factors of easy packing procedure, low pressure of operation and low costs as well. Depend on the way that the solvent flows down the column, we can find two different kinds of column chromatography: one is gravity column...

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, March 09, 2020

The QuEChERS method has the following advantages : (1) high recovery rate, which is greater than 85% for a large number of polar and volatile pesticide varieties;(2) high accuracy and accuracy, can be corrected by internal standard method;(3) a wide range of analyzable pesticides...

Monday, March 09, 2020

Vacuum filtration is highly appreciated by scientists as the ideal technique. Suction is applied to a mixture of liquid and solid to get the fast and efficient results when we need to separate and keep the precipitate safe from a solution. On the one hand, vacuum filtration has lots...

Friday, February 14, 2020

Quantity : 100 - Price : USD 2149

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Friday, February 14, 2020

Quantity : 100 - Price : USD 1047

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Friday, February 14, 2020

Quantity : 100 - Price : USD 1213

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Friday, February 14, 2020

Quantity : 100 - Price : USD 785

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Friday, February 14, 2020

Quantity : 100 - Price : USD 125

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Friday, February 14, 2020

Quantity : 100 - Price : USD 662

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Friday, February 14, 2020

Quantity : 100 - Price : USD 607

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Friday, February 14, 2020

Quantity : 100 - Price : USD 345

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Friday, February 14, 2020

Quantity : 100 - Price : USD 403

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Friday, February 14, 2020

Quantity : 100 - Price : USD 1380

Bandar Electronic has been established from 2010 and to this day we continue to grow. We're one of the largest distributors in Indonesia to provide Graphics Printing, Cutting Plotters, Large Format Solvent Printer,Photocopiers,Facsimile,Scaners,L aminator,Ink Printer,Print head,Bitcoin...

Wednesday, January 22, 2020

The sealing property of the headspace vial is better than that of the threaded vial, and the rubber or silica gel has good re-sealing after the puncture, so it is ideal to preserve the reagents. If some of the organic solvents in use will corrode the silicone or rubber bottle pad...

Tuesday, January 21, 2020

Syringe filter is separation equipment which can be combined with a injector to filter out the impurities from the sample of chemically turbid solution. Syringe filter generally consists of a plastic housing and a membrane. The body of syringe filter (plastic housing) is usually made...