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Method for quantitatively determining the dye content in dyed oils

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Title: Method for quantitatively determining the dye content in dyed oils.
Abstract: A new method to determine by quantitative analysis the amount of dye present in dyed engine oils is provided. The method uses imaging techniques, such as spectrophotometry, and a combination of dilution and standard addition techniques to quantitatively determine the concentration of dye in the engine oil to ascertain whether dye concentrations in engine oil have decreased as compared with original specifications, and to quantify the amount of dye to be added to the dyed engine oil to bring dye concentrations to original concentrations. ...


- East Hartford, CT, US
Inventors: Holly S. Eccleston, Mimi Nguyen-Vu, Philip H. Ratliff
USPTO Applicaton #: #20080160620 - Class: 436 60 (USPTO) - 07/03/08 - Class 436 


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The Patent Description & Claims data below is from USPTO Patent Application 20080160620, Method for quantitatively determining the dye content in dyed oils.

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Photometry   Quantitative Analysis   Spectrophotometry   Advertise on FreshPatents.com - Rates & Info


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stats Patent Info
Application #
US 20080160620 A1
Publish Date
07/03/2008
Document #
11647099
File Date
12/28/2006
USPTO Class
436 60
Other USPTO Classes
508110
International Class
/
Drawings
3


Photometry
Quantitative Analysis
Spectrophotometry


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