New analytical measurement capabilities for life scientists

4 Feb 2008
Greg Smith
Analyst / Analytical Chemist

Product news

Paraytec has announced that it will unveil, at Analytica 2008, a suite of applications advances for life scientists based upon their ActiPix® D100 miniature UV area imaging detector.

Paraytec's multi-award winning product, the ActiPix D-100, is the world's first quantitative UV area imaging system. As well as providing superior performance over existing micro and nano flow detectors the patented ActiPix opens up intriguing new possibilities never before possible using conventional detectors. On the Analytica Stand 382/1, hall 3 in the Innovations area Paraytec will provide live demonstrations of the ActiPix D-100's unique area imaging capability in applications of interest to Pharmaceutical, Biotech and Biological researchers. These will include new measurement capabilities in applications including real time study of diffusion processes, in-line quantification and sizing of biopharmaceuticals, dissolution / solubility testing and membrane transport studies.

Compact in design the ActiPix D100 consists of a control box connected via a fibre optic cable and communications cable to a remote sensor head. The sensor head holds easily exchangeable, application-specific cartridges for techniques including capillary electrophoresis (CE), nano-liquid chromatography (nanoLC) and powerful imaging of lab-on-chip devices. The miniature detector head contains a high resolution 1280x1024 active pixel sensor. The detector can be used as a 'plug and play' accessory linked in-line to single or multiple peripheral devices, such as existing CE or nanoLC instrumentation, with or without a mass spectrometer. Detection is performed at a selected wavelength by means of interchangeable filters. Light is delivered via a fibre optic coupled pulsed xenon light source. Readout of signals from individual pixels is carried out at MHz rates, with all processing done in hardware on high performance electronic assemblies. Processed data including absorbance values covering the whole imaged area is output in real-time to a computer using an industry-standard high-speed serial data link.

Dr Mebs Surve (Business Development Manager) commented 'The ActiPix D-100 extends the use of UV-Vis absorbance detection to a range of new biological and pharmaceutical applications. Using capillaries as sample vessels, we are able to characterise tiny sample volumes with exceptional sensitivity over a wide dynamic range. Combined with our use of active pixel area sensors alongside real-time processing software, results can become not just numbers, but incredibly powerful real-time images'.

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Capillary ElectrophoresisCapillary electrophoresis (CE) is used to separate molecules based on charge, size and hydrophobicity. Pressure, voltage or a vacuum is used to introduce the sample to fused silica capillaries. Fluorescence, UV/Vis, UV or diode array detectors are used to visualize components. Types of CE systems include capillary electrochromatography (CEC), capillary zone electrophoresis and capillary gel electrophoresis. Find the best capillary electrophoresis equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.UV-Visible SpectroscopyUltraviolet-visible (UV-Vis) spectrophotometers are used to measure the interaction of UV and visible light with a sample, including transmission, reflectance & absorbance. The two major instrument classes are single-beam or double-beam spectrophotometers. More specialized equipment includes colorimeters, spectroradiometers and refractometers. Portable and microvolume spectrophotometers are also available. For the modular spectroscopy lab, explore a range of light sources for combination with a spectrograph/spectrometer and optics. Find the best UV-Vis spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Lab-on-a-ChipLab-on-a-chip (LOC) technology uses microfluidic chips, such as microarrays, to perform biochemical assays on a small scale. Benefits of lab-on-a-chip include the small volume of sample required as well as the speed of analysis. In selecting lab-on-a-chip devices consider the assay, cost, reliability, sensitivity and signal to noise ratio.NanoLCNano LC is a nano scale liquid chromatography technique typically used for proteomic applications. The nano refers to the very low flow rate of the mobile phase in the system. The advantage of nanoLC is its high sensitivity. Often the system is integrated with a mass spectrometer in nano LC-MS or nano LC-MS/MS. When using nanoLC equipment consider column choice, software and accurate and precise flow rate control.