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Method of analyzing multiple sample simultaneously by detecting absorption and systems for use in such a method

United States Patent

6,788,414
September 7, 2004
View the Complete Patent at the US Patent & Trademark Office
Ames Laboratory - Visit the Iowa State University Research Foundation - Office of Intellectual Property & Technology Transfer Website
The present invention provides a method of analyzing multiple samples simultaneously by absorption detection. The method comprises: (i) providing a planar array of multiple containers, each of which contains a sample comprising at least one absorbing species, (ii) irradiating the planar array of multiple containers with a light source and (iii) detecting absorption of light with a detetion means that is in line with the light source at a distance of at leaat about 10 times a cross-sectional distance of a container in the planar array of multiple containers. The absorption of light by a sample indicates the presence of an absorbing species in it. The method can further comprise: (iv) measuring the amount of absorption of light detected in (iii) indicating the amount of the absorbing species in the sample. Also provided by the present invention is a system for use in the abov metho.The system comprises; (i) a light source comrnpising or consisting essentially of at leaat one wavelength of light, the absorption of which is to be detected, (ii) a planar array of multiple containers, and (iii) a detection means that is in line with the light source and is positioned in line with and parallel to the planar array of multiple contiainers at a distance of at least about 10 times a cross-sectional distance of a container.
Yeung; Edward S. (Ames, IA), Gong; Xiaoyi (Edison, NJ)
Iowa State University Research Foundation, Inc. (Ames, IA)
10/ 070,531
June 5, 2002
STATEMENT OF GOVERNMENT RIGHTS This invention was made with government support under Contract No. W-7405-Eng-82 awarded by the U.S. Deparment of Energy. Therefore, the Government may have certain rights to this invention.