Transcription of Understanding dissolved oxygen
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Understanding dissolved oxygenTable of contentsWorkshop 5 Importance of Gas of pressure and of changing dissolved oxygen Methods calibrations into to determine dissolved sensing ) polarographic oxygen of influencing POS ) Luminescence dissolved dissolved oxygenWorkshop goals:My goal for this workshop is to provide participants with a full Understanding of whatgoes into the measurement of dissolved oxygen in natural waters. Because of the rapiddevelopment of technology and the production of advanced meters that are capable of generatingmuch information, the basics on which the technology is based are often forgotten , meaningthat operators may not be able to distinguish good and bad data.
PV = nRT Boyle’s Law - P 11 V = P 22 V or PV = constant Where P = pressure and V = volume From combined gas laws P 11 V /T 1 = P 22 V /T 2 or PV/T = constant T = temperature where (in SI metric units): P = the absolute pressure of the gas, in Pa n = amount of substance, in mol V = the volume of the gas, in m3
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