GBC Scientific Equipment

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UV-Visible Accessories

Certified Performance Verification Kits for UV-Visible Spectrometers

Certified Performance Verification Kits for UV-Visible Spectrometers

Test kits are available for performance verification of UV-Visible Spectrometers, including a certified UV-Visible Reference Kit and a Neutral Density Filter Kit.

The UV-Visible Reference Kit is traceable to standards certified by NIST (National Institute of Standards and Technology). For quality assurance and traceability, the photometric and wavelength standards are supplied with a certificate and a report detailing the relevant results for the cells. Each cell is individually engraved with the identifying number of certificate.

This kit consists of seven sealed quartz cells containing solutions which can be used to check the photometric accuracy, wavelength accuracy, stray light and resolution of any UV-Visible spectrometer. It is ideal for laboratories where regular testing of instrument performance is required by regulatory bodies and in particular, pharmaceutical laboratories and laboratories accredited to ISO 9000.

Also available is the Neutral Density Filter Kit which contains three filters of nominal transmittance - 10%, 20% and 30% as well as a blank holder. These filters are ideal for quality control laboratories where such standards are required for long term evaluation of the photometric accuracy of a UV-Visible spectrometer.

Both these kits offer users the confidence that their instrument is maintained at peak performance levels and ensures integrity of results.

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Sample Changers

Sample Changers 6 x 1

In-line (6 x 1)

The 6 x 1 or Linear Movement Module allows up to six samples to be measured in batch mode against a single reference solution. The sample changer can be fitted with a range of 6 x 1 cell holders, including standard (10 x 10 mm), variable path length, water thermostatted and peltier-effect thermocell versions. Sample selection is automated by the software.



Dual Carousel

Dual Carousel (6 x 6 or 7 x 7)

The 7 x 7 sample changer is available in standard and water thermostatted versions. All sample changers are fully computer controlled, providing random access to all positions. It takes less than one second to move between adjacent cells. Two measurement modes are available: 7 x 7 mode for measuring 7 samples against up to seven references or 12 x 2 mode for measuring up to 12 samples against one or two references.

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Cintra Sampling Accessories

Cintra Sampling Accessories

The Cintra sample compartment is designed to accept a wide range of modular manual and automated accessories, providing maximum flexibility to suit the wide variety of sample types and applications encountered in modern laboratories. It takes only seconds to exchange the standard cell holder with a specialised easy-to-use holder.

Automated accessories plug directly into built-in port in the sample compartment and are automatically recognized by the instrument. There is no need for expensive add-on interfaces or structural extensions. Just drop in the accessory and start analyzing.

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1 X 1 Sample Holder

The standard sample cell holder is the 1 x 1 which holds two industry-standard 10 mm cuvettes, one each in the sample and reference beams. It may be used for analysis of single samples, in normal cuvettes.

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Other 1 X 1 Configurations Include

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Sippers and Autosamplers

Sippers

The auto sipper removes the need for cell handling. Used with a flow cell (various types available), sample introduction is reduced to a key press. It features computer-controlled pump times, and can be used with temperature controlled cells.

For high speed automated analysis, the SDS-270 autosampler, used with a sipper, provides automated sample selection of up to 270 samples. A built-in diaphragm pump provides a continuous stream of clean rinse solution to prevent inter-sample contamination.

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Total Integrating Sphere

Total Integrating Sphere

The total integrating sphere is ideal for measuring the total reflectance from solid samples such as plastics, paper, textiles and coated surfaces.

The sphere provides a transmission position, making it suitable for the measurement of turbid or scattering samples. Spheres are available up to 800nm for standard DRS applications and the DRS 1150 for NIR applications up to 1150nm.

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Temperature Controlled Cell Holders

Temperature Controlled Cell Holders

Water-thermostattable cell holders are available in single cell or sample changer (linear or carousel) configurations. When connected to a constant-temperature circulating water bath, these cell holders ensure constant sample temperature.

For precise and rapid temperature control, a range of Peltier-effect thermocells is available in single cell or sample changer (linear or carousel) versions. Peltier-effect controllers are useful in applications where an accurate constant temperature or an accurate controlled temperature ramp is required. Optional sample immersion probes are available for accurate monitoring of the true sample temperature.

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