Copyright Resonance Ltd., December 2011 143 Ferndale Drive North, Barrie, ON L4N 9V9       Tel: 705-733-3633         Fax: 705-733-1388      Email:sales@resonance.on.ca 
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Differential Optical Absorption Spectroscopy (DOAS) is a technique used to measure trace quantities of a target species of gas by measuring their optical absorption of a broadband source and, by using both the broadband and narrowband absorption cross-section against a reference spectrum, determining its concentration. Resonance Ltd. supplies a line of DOAS calibration cells filled with a variety of gases. These cells can be filled to concentrations ranging from 0 -2000 ppm-m and are designed to fit most standard DOAS systems. Made with quartz or Pyrex, these cells can withstand the harshest environments and are extremely resistant to scratches and contamination, providing a long and reliable lifetime.
Calibration Cells
Features
Made from high quality Quartz or Pyrex > 2 year shelf life Concentrations from 0 to 2000 ppm-m Direct from manufacturer to you Custom designs available
Specs
Thickness: 14.3 mm (standard) Diameter: 22 mm Shelf Life:   > 2 years Concentrations: 0 - 2000 ppm-m Fill Accuracy: +/- 10%
Advantages
Competitive pricing Quantity discounts Next day shipment for stock items > 25 years manufacturing experience
Customization
Custom cell sizes and designs Mounts for automatic cell changers Custom gas fills Rocket or space qualified
Calibration Cells