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Peptides purification HPLC columns

Resolux line delivers purification solutions for very short peptides up to large chains by offering consumables in three different pore sizes



Universal HPLC Detector Offers near Nanogram Sensitivity

Available from Dorton Analytical the ultra-sensitive, universal Nano Quantity Analyte Detector presents a major advancement in high performance liquid chromatography detection capability.



Improving HPLC fraction pooling workflow

Genevac has announced a technical study that illustrates how its innovative SampleGenie technology enables removal of steps from a centrifugal evaporator / HPLC fraction pooling protocol.



integrated sample hplc preparation device

HPLC sample preparation can be a tedious process. Whatman has developed a product called Mini-UniPrep (MUP) that greatly enhances the efficiency of that sample preparation process. MUP combines a mixing/reaction container, filtration device and an auto-sampler vial, all rolled into one.



The benefits of using evaporative light scattering detection in HPLC

Evaporative light scattering detection (ELSD) has become widely used in the field of HPLC. For non-UV absorbing compounds, ELSD is a primary choice since the principle of detection does not rely on the optical properties of the solute.



"Modular HPLC system offers flexibility, reliability and sensitivity"

Users of HPLC instrumentation require a vast array of features and working specifications to meet their application requirement.



HPLC sample preparation

One of the essential steps in sample preparation prior to injection for HPLC is filtration of the sample. Filtering the sample through a syringe filter with a 0.45µm microporous membrane filter will remove particulates that can cause premature instrument failure.

Sample filtration helps to protect the various components of an HPLC system, simplifies instrument maintenance, and prolongs the life of the instrument as well as expensive analytical columns.

The accuracy and reproducibility of results are improved, since the injection port and instrument are protected by filtering.




Hybrid particle technologyand its use in HPLC

High performance liquid chromatography (HPLC) has been a mainstay of the laboratory scientist for many years. However,there is a new chromatographic base material which is leadingto dramatic performance improvements, including an extended useful pH range, all without sacrificing the benefits of silica-based chromatographic supports.



New column technologies for HPLC and LC/MS

Thermo Hypersil-Keystone, manufacturer of Hypersil silica, has compiled its range of HPLC column designs and HPLC silica phases into a new catalogue.



Analytical HPLC chromatography offers improvements in productivity

Today the demands of separation devices are higher than ever before. Increasing productivity in high performance liquid chromatography (HPLC), through higher sample throughput and reduced analytical time, is one of the major challenges with which analysts are faced.

Dr W. Kraas reports.




Organic/inorganic solution for HPLC separation problems

High-efficiency silica-based packings have been used in high performance liquid chromatography (HPLC) since 1973. Over the past 27 years, says Sylvie Mamon, many improvements have been made to the technology of these packings.



Monolithic silica technology: revolutionising HPLC!

Particulate silica HPLC columns can produce very high pressures and long separation times. In between runs these columns require a lengthy equilibration phase whilst flow rates and column length are limited, writes Dr K Sinz. In summary, particulate columns can seriously limit the number of samples it is possible to analyse.



Porvair launches HPLC sample evaporators

Porvair Sciences announces new versions of its MiniVap and UltraVap blowdown evaporators that use warm air or nitrogen to speed up the evaporation of common HPLC solvents such as dichloromethane, methanol and acetonitrile from sample vials, significantly improving throughput and removing this common laboratory bottleneck.



HPLC modelling software

Dr Hans-Jürgen Rieger outlines the benefits of the latest high-performance liquid chromatography modelling software



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