Optical analysis method and optical analysis device using the detection of light from a single light-emitting particle
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United States of America Patent
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Jan 9, 2018
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Jul 19, 2013
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Jan 20, 2011
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Abstract
In the scanning molecule counting method using the light measurement with a confocal microscope or a multiphoton microscope, a measuring time is optimized with suppressing the scattering in a result small irrespective of light-emitting particle concentrations. In the inventive technique of detecting and analyzing the light from an light-emitting particle, there are repeated processes of detecting the light intensity from a light detection region with moving the position of the light detection region of an optical system in a sample solution by changing the optical path of the optical system of the microscope, and detecting the signals of the light of light-emitting particles individually, and based on the time taken for the number of the signals from the light-emitting particles to reach a predetermined number, the light-emitting particle concentration in the sample solution is determined.
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