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Estimated Delivery
Mar 09 - Mar 16
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Free standard shipping on orders over $99
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
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BUCK Scientific Peltier CryoCooled Trap for Gas Sampling Valve
Note: For all International Orders, the buyer will be solely responsible for the customs clearance, duty, and taxes imposed on the package.
The CryoCooled Peltier Trap can cool samples down to -15 degree C. It is designed for use with analytes that do not trap well but can enrich in cold temperatures, such as some sulfur compounds. The trap is filled with Tenax-GR and silica gel adsorbents. A vacuum pump is included for drawing samples through the CryoCooled Peltier Trap. The CryoCooled Peltier Trap has its own power supply, separate from the main GC power.
The CryoCooled Peltier Trap is basically a heated trap sandwiched between two Peltier coolers. The CryoCooled Peltier Trap also requires a 10-port gas sampling valve (sold separately). While the Peltier Trap is enriching the sample, the 10-port valve is in the LOAD position. At the conclusion of the sampling period, the trap is heated to 150-200 degree C and the valve is rotated to the INJECT position; this places the trap in the carrier gas stream and sweeps the enriched analytes into the column.
The chromatogram above shows the Buck FPD response to 10ppb hydrogen sulfide (H2S) as enriched by the CryoCooler at -10 degree C.
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