Everything else / Bulk

Factors Affecting the Performance of C18 HPLC Columns

Physical properties of the chromatographic column could affect the performance of C18 HPLC columns.

Performance factors of C18 HPLC columns:

Silica gel purity
Class A silica gel has high residual silica hydroxyl with a negative charge and high metal content on the acidic surface, which leads to trailing of alkaline compounds.
Due to the low metal content and high silica hydroxyl pKa of class B silica gel, tail dragging of alkaline compounds does not occur.

Performance factors of C18 HPLC columns:

Column size
Short column – short running time, low column pressure
Long column – high resolution, long running time
Narrow diameter column – detector has high sensitivity

Performance factors of C18 HPLC columns:

Particle shape and size
When the mobile phase with high viscosity is used, the spherical particles can reduce the column pressure and prolong the life of the column. Smaller particles have higher column efficiency but can cause column pressure to be too high.

Performance factors of C18 HPLC columns:

Surface area and aperture
The high surface area has strong retention capacity, column capacity and separation degree for separating multi-component samples. Low surface area fillers usually reach equilibrium quickly and are particularly important for gradient leaching.

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
Factors Affecting the Performance of C18 HPLC Columns

Search in a category : Everything else / Bulk
Search in a category :
performance, columns, hplc, factors
Indonesia 1440 Equipment goods
MIMAKI APC-130 Apparel Cutter

Wednesday, June 17, 2015

Quantity : 100 - Price : $3,100.00

- MIMAKI APC-130 Apparel Cutter - 2 Tasks - 1 Machine APC-130 is based on Mimaki's extensive know-how within the cutting market and the company's highly appraised CG-series of cutting machines for the sign industry. Equipped with various functionality required by the apparel and...

PT DIGITAL MEDIA PRINTER

Pakistan 51310 Clothes
photo not available

Friday, June 13, 2008

Quantity : As per dem - Price : Negotiable

We are the manufacturers and exporters of high quality of Leather Hats/Caps. We Leather Hats in various Leather and Colours, simple, water repellent, water proof qualities. Any desighn provided by client may also be developed.Location : Meera Manzal,Royal Street,Neka Pura, 51310 Sialkot...

Sayor Int'l.

  • sayor
  • 51310 - Sialkot
  • +92 5 23 61 05 15
  • 0092 321 7101608
photo not available

Friday, September 21, 2007

Quantity : 40ft CTN

WE ARE WHOLESALERS AND EXPORTERS OF MIXED USED LIGHTWEIGHT SUMMER CLOTHING IN 1100 LBS LARGE BALES, WE LOAD 40FT HIGH CUBE CONTAINER FOR EXPORT. OUR QUALITY CLOTHING COME STRAIGHT FROM WEALTHY & UPSCALE NORT AMERICA HOMES. QUALITY IS OUR GAME AND CLIENTS SATISFACTION IS OUR CONCERN...