METHODS AND APPARATUSES FOR DETERMINING CONCENTRATION OF A TARGET GAS WITHIN A SAMPLE GAS
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United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Jul 10, 2024
filing date -
Jul 10, 2024
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Abstract
Methods, apparatuses, and systems for determining a concentration of a target gas in a sample gas. An example method of preparing a replaceable testing material for detecting a target gas in a sample gas may include preparing a solution comprising a solute and a solvent, wherein the solute comprises o-tolidine; introducing a testing material substrate to the prepared solution for a period of time; and removing at least a portion of the solvent from the testing material substrate such that the testing material substrate comprises at least a portion of the o-tolidine, and thereby forming the replaceable testing material for detecting the target gas in the sample gas.
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