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Dissolved 0xygen
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Chambers, Amplifiers, Systems
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There were 9 questions found in this category:
 Can a dramatic change in temperature affect the accuracy of an O2 sensor?
All electrochemical sensors are affected by temperature. This applies equally to O2 and NO sensors. For a measurement to remain accurate, the temperature must stay constant during the experiment or must be compensated for either in software or within the meter. Some of our oxygen meters do not ...
- Can the electrodes for the Instech Dual Chamber Oxygen Measuring System be sterilized in an autoclave?
No, you cannot autoclave polarographic oxygen electrodes since that would melt the polyethylene membrane and ruin the piece. The best way to sterilize such equipment is to gently rinse with a 10% solution of fresh Clorox bleach and then exhaustively rinse with cold, filtered sterilized water.
- Can the Oxy-2 electrode be used in air?
The Oxy-2 can be used in air. It is much faster and very stable. We do not have specifications for air measurements.
- Does the OXY-2 meter use a one point or two point calibration?
Two points. Common points include zero and air saturated (8 ppm at room temperature) in solution, and zero in nitrogen and 100% in pure oxygen gas.
- How can I generate and maintain a hypoxic solution for delivery to a chamber?
This is normally achieved by bubbling an O2-free gas through the solution until the O2 load has been depleted. Keep in mind, however, that PE, Tygon, and Teflon tubing are all gas permeable, and therefore will expose your perfusing solutions to O2 during transit.One option to address this is to ...
- What is the lowest reliable reading the OXY-2 electrode can make?
The sensor can measure below 5 ppm easily. It can resolve 0.1 ppm.
- What is the range of the OXY-2 electrode in ppm?
The electrode can read zero in oxygen-free solution. Theoretically, the electrode can read more than 20 ppm.Generally speaking, 20 ppm is the reading when the solution is saturated with oxygen.
- What is the solubility of oxygen in air exposed water?
The solubility of oxygen in water exposed to air is well documented to be about 2 mM.
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We welcome your questions! Submit a question to us (via email) by clicking here and we'll answer you directly. We'll also anonymously post your question to our FAQ Knowledge Base (KB) to assist other people.If you choose to not communicate via this KB, then please send your questions directly to ...
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