Industry: Environmental
Instrument: AQUATek 70 Vial Autosampler
Performance of a Next Generation Vial Autosampler for the Analysis of VOCs in Water Matrices
In today’s laboratories, increased efficiency and productivity are of extreme importance. Equally important is the ability to automate analyses without sacrificing sample integrity or data quality. A new vial autosampler, the AQUATek 70, has been developed to fully automate purge and trap analysis of water and wastewater samples in accordance with current EPA methods for volatile analysis.
Research will be presented demonstrating the instrument’s ability to transfer sample aliquots with the addition of internal standard or surrogate solutions. Data will be evaluated for linearity, precision, and accuracy. In addition the instrument’s sample pathway will be evaluated for carryover, inertness, and reliability.
The AQUATek 70 is a liquid autosampler for purge and trap concentration that can handle water and wastewater samples of all types. The system is completely automated with automatic sample measurement, and standard addition in a closed system technique that minimizes the loss of volatiles during shipping, handling, and analysis. Virtually all sample preparation is eliminated, saving time and money. The AQUATek 70 uses a sampling system with years of proven reliability. Rather than bringing the vial to the sample needle, the sample needle is moved to the vial. This eliminates problems such as vial jamming and dropping, and allows particulate laden-samples to settle and remain undisturbed before sampling. This fact, combined with a unique sample pathway made of large bore tubing and large valve orifices eliminates clogging of sample lines and valves. All sampling is followed by a complete rinse of the systems pathway with Tekmar’s proprietary high temperature OptiRinse™ system virtually eliminating carryover.
Laboratories have productivity challenges that must be met in order to survive in their competitive markets. The AQUATek 70 meets these needs by accommodating up to seventy 40 ml VOA vials providing the highest sample capacity on the market today. The large sample capacity in combination with the system’s reliability make the AQUATek 70 one of the premier vial autosamplers available today.
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