Everything else / Bulk

Basic Steps For SPE Columns Operation

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 shape of the analyte and the sample solvent.

Composition of SPE
1. The column tube: made of serum-grade polypropylene in the shape of a syringe.
2. Sintered mat: fixation and filtration.
3. Fixed phase: commonly bonded silica gel materials.

Basic steps of SPE columns
1. Select extraction tube
2. Pretreatment of the extraction tube
3. Add samples
4. Rinse the filler
5. Elution of compounds

SPE can be used for sample pretreatment of gas chromatography, liquid chromatography, infrared spectroscopy, mass spectrometry, NMR, UV, and AAS.
The solvent strength of the positive solid phase increased with increasing polarity. The solvent strength of the inverse-phase solid phase increased with the increase of non-polarity. Common solvents are water, methanol, isopropyl , and acetonitrile, and sometimes acetone and dichloromethane.

In general, SPE improves the technique of sample preparation.

Location : Xi'an City , Shaanxi Province, P.R.China, 710077 Xi'an,
Contact : Bruce Lu, +86 29 89284429

Good deal: buying from seller

Visit our guide for a secure transaction! Under no circumstances Algomtl can be held responsible for the content of the ads published. Only the sellers and buyers responsability is involved in case of dispute.
We invite you to read our terms of use. You can also visit our FAQ section and see our information section on the risks associated with counterfeiting.
This page is about importers and exporters of
Basic Steps For SPE Columns Operation

Search in a category : Everything else / Bulk
Search in a category :
steps, operation, columns, basic
Spain 29010 Phones
Screen Protector Iphone Samsung HTC LG Balckberry ..... etc.

Friday, April 05, 2013

Quantity : 250 comman - Price : 0,60 €

Anti-glare (matte), hard-coated, dirt-repellent, easy to install and can be removed without leaving any traces The screen protector is designed for application on electronic screens and offers reliable protection against scratches and dirt. The film surface is dull and to mitigate...

QUAD LOGISTICA S.L

  • 29010 - MALAGA
  • +34 9 12 69 23 06
Germany 12345 Sport goods
Bubble game Bubble Football 22

Saturday, April 16, 2016

Quantity : 7 - Price : 4 513,00 €

Bubble Football ist nicht nur eine beliebte Mietattraktion für Events, es hat sich zu einer richtigen Fun Sportart entwickelt. - Bubble game Bubble Football 22 Bubble Footbälle in einem Paket - €4,513.00 Bubble Football ist nicht nur eine beliebte Mietattraktion für Events...

bubblefootballkau

  • 12345 - German
  • (+49) 30896779388
Thailand 10500 Food
Refined cane and beet sugar

Tuesday, July 14, 2015

Quantity : 15000MT - Price : 250euro

Refined cane and beet sugar Specifications we supply Thailand Refined Sugar 45 ICUMSA Max PECIFICATIONS Super Refined White icumsa 45 sugar Sugar: POLARIZATION: 99.80 Degrees min. ASH CONTENT: 0.04 Max. ICUMSA: 45 RBU SOLUBILITY: 100% Dry and Free Flowing COLOR: Sparkling White...

SAMCRO S.A

  • 10500 - bangkok
  • +66 2 62 61 74 60
  • +66 9 62 91 74 69