Flame ionisation detector
14 September, 2005Selerity Technologies has developed an interface for its Aquachrom 'green machine', claimed to be the first instrument to use superheated water as the mobile phase for HPLC separations.
HPLC prep column packer
10 August, 2005The Grace Davison Discovery Sciences Multipacker Series 2002 Instruments are designed to pack preparatory columns from 25 to 101 mm ID. The instruments are easy-to-use, high performance packing stations specifically designed for Spring Column Packing.
Charged aerosol detection for HPLC
18 July, 2005The ESA Biosciences Corona Charged Aerosol Detector for HPLC is claimed to offer all-in-one performance benefits that refractive index (RI), low wavelength (UV), evaporative light scattering (ELS) and chemiluminescence nitrogen (CLN) detector methods lack.
Low bleed capillary GC column
16 March, 2005Varian has expanded its FactorFour series of capillary gas chromatography (GC) columns with the VF-5ht for high temperature analysis, and the 0.15 mm ID columns for high-speed productivity. The entire FactorFour line, now comprised of nine phases for various environmental and industrial applications, offers a very low bleed specification.
HILIC columns
16 March, 2005Hydrophilic interaction chromatography (HILIC) is suitable for separating and retaining very polar compounds that do not retain or have very limited retention on traditional reversed-phase packings. HILIC columns retain highly polar compounds with only small amounts of water in the mobile phase. These more volatile mobile phases increase sensitivity with LC/MS applications. Water is used as the strong solvent so increasing water content will elute peaks faster.
Monolithic HPLC columns
15 February, 2005Phenomenex has introduced its monolithic silica HPLC column portfolio, Onyx.
ELSD 2000ES evaporative light-scattering detector
15 February, 2005Alltech's ELSD 2000ES combines universal detection capabilities with enhanced sensitivity for demanding applications.
Preheating requirements in HTLC
08 September, 2004Preheating of the mobile phase has been shown to be an important parameter in attaining maximum performance in high temperature liquid chromatography (HTLC)
Nanoflow HPLC columns
14 July, 2004New Objective has introduced a range of nanoscale chromatography columns to add to its already existing PicoFrit and IntegraFrit selection. The columns are designed specifically for protein and peptide separations.
Differential viscometer detector
14 July, 2004The Wyatt Technology ViscoStar viscometer is an online chromatography detector for determining specific and intrinsic viscosities. The ViscoStar is claimed to have at least two times the signal-to-noise of products available on the market as well as a proprietary Transducer Protection System (TPS) that prevents accidental damage to sensitive transducer membranes.
Convert HPLC to IC
15 May, 2004Alltech's suppressors and 650 Conductivity detector easily convert any HPLC into an IC system. Both suppressor models, the 640 and 641, are continuously regenerated with no need for extra reagents.
Evaporative light scattering detectors
15 May, 2004SofTA evaporative light scattering detectors employ Thermo-Spilt technology in instruments designed with a flexible configuration, yielding real advantages in many common HPLC applications.
Elemental speciation analysis
08 April, 2004The toxicity of trace elements in the environment is in many cases dependent on the chemical form in which they occur. Total element concentrations no longer provide sufficient information to allow risk-based toxicity assessments
Evaporative light scattering detector
18 January, 2003Alltech ELSD 800 is an evaporative light scattering detector that can add universal HPLC detection to any LC system to replace or complement existing detectors. The ELSD's universal response gives a closer representation of sample mass than UV detectors, making quantification more accurate when standards are not available. It can be used in parallel with MS to obtain maximum structural and concentration information for each sample. Unlike RI detectors, the ELSD offers high sensitivity, equilibrates quickly and is gradient compatible.
