Method and apparatus for determining the water content of organic solvent solutions
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United States of America Patent
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Jun 4, 2013
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Dec 21, 2010
filing date -
Dec 21, 2010
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Abstract
A method and apparatus for determining the amount of water in an organic solvent solution, such as a DMSO solution. The apparatus comprises an infrared LED for emitting near infrared light; a laser diode collimator for forming a collimated light beam from the light emitted by the LED; a sample container holder for accepting a sample container containing a sample solution; a photodiode for generating an output signal that is related to the intensity of the collimated light beam after the collimated light beam has passed through the sample solution; and a control means for controlling the stability of the near infrared light emitted by the infrared LED by controlling an amount of current flowing through the infrared LED.
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