Drying method and apparatus for infrared analysis of aqueous samples
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United States of America Patent
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Aug 13, 1996
Grant Date -
N/A
app pub date -
Aug 1, 1990
filing date -
Aug 1, 1990
priority date (Note) -
Expired
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Abstract
In the system for analyzing aqueous samples, the aqueous sample is deposited upon a sheet of filter paper which is held in a filter holder by clamping the peripheral edges of the filter paper between male and female threaded members of the filter holder. The filter paper with the sample is dried by a heated air stream directed perpendicularly toward the paper so that it flows around and through the paper. After the sample has been dried, it is analyzed by near infrared spectral analysis to measure the constituents of the dried sample.
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