摘要:
An optical system for analyzing light from a plurality of samples is provided. The optical system includes a plurality of holders adapted to have samples located therein, a collection lens, a transmission grating, and a reimaging lens. The collection lens is configured to receive and substantially collimate light from the samples. The transmission grating is configured to spectrally disperse the substantially collimated light from the collection lens. The reimaging lens is configured to receive the light from the light dispersing element and direct the light onto a light detection device. A method of optically analyzing at least one sample is also provided.
摘要:
The present invention provides a method for the excitation of a fluorescent sample and the measurement of the fluorescent emission. The method of the present invention has the advantage of significantly reducing the amount of background fluorescence. The method includes the steps of exciting a sample in a substrate with a beam of light that enters the substrate at an angle less than or equal to 45° C., and preferably, less than or equal to 20°, and then collecting the fluorescent emission form the sample with a lens system which focuses the emitted light onto a CCD for detection. Although the following description of the present invention uses a scanning system using channel plates by way of illustration, the method described herein may also be used with non-scanning systems as well as capillary systems.
摘要:
An apparatus for detecting analytes in a sample is provided. The apparatus includes: one or more channels having a detection zone; one or more irradiation sources disposed for irradiating the detection zone with non-coherent radiation; a detector array disposed for collecting light signals emitted from markers in the detection zone excited by the radiation, the detector array having an output; and a system coupled to the detector array for effecting time delay integration of the charges on the detector array corresponding to the light signals by accumulating the charges before reading the charges at the output of the detector array. Other apparatus and methods for detecting analytes in a sample are also provided.
摘要:
The present invention provides a detection cell that comprises a body having a first end that defines a first opening, a second end that defines a second opening, and an internal surface that defines an interior cavity that fluidly connects the first opening and the second opening; wherein the interior cavity is capable of holding a support matrix for receiving a chemical species through the first opening, passing the chemical species through the interior cavity, and discharging the chemical species through the second opening; and wherein at least two portions of the body are capable of providing a first and a second guiding region each having an index of refraction less than that of the support matrix. A system utilizing the detection cell of the present invention is also provided. In another embodiment, the present invention provides a method for guiding light through a support matrix through which a chemical species is passing.
摘要:
System and method for fluorescent light excitation and detection from samples to enhance the numerical aperture and/or reduce the cross-talk of the fluorescent light.
摘要:
System and method for fluorescent light excitation and detection from samples to enhance the numerical aperture and/or reduce the cross-talk of the fluorescent light.
摘要:
An optical system for analyzing light from a plurality of samples is provided. The optical system includes a plurality of holders adapted to have samples located therein, a collection lens, a transmission grating, and a reimaging lens. The collection lens is configured to receive and substantially collimate light from the samples. The transmission grating is configured to spectrally disperse the substantially collimated light from the collection lens. The reimaging lens is configured to receive the light from the light dispersing element and direct the light onto a light detection device. A method of optically analyzing at least one sample is also provided.
摘要:
An optical system for analyzing light from a plurality of samples is provided. The optical system includes a plurality of holders adapted to have samples located therein, a collection lens, a transmission grating, and a reimaging lens. The collection lens is configured to receive and substantially collimate light from the samples. The transmission grating is configured to spectrally disperse the substantially collimated light from the collection lens. The reimaging lens is configured to receive the light from the light dispersing element and direct the light onto a light detection device. A method of optically analyzing at least one sample is also provided.
摘要:
Embodiments of methods and devices are disclosed for the manipulation (e.g., concentration, purification, capture, trapping, location, transfer, etc.) of analytes, e.g., biomolecules, with respect to analyte-containing solutions using one or more electric fields.
摘要:
An optical system for analyzing light from a plurality of samples is provided. The optical system includes a plurality of holders adapted to have samples located therein, a collection lens, a transmission grating, and a reimaging lens. The collection lens is configured to receive and substantially collimate light from the samples. The transmission grating is configured to spectrally disperse the substantially collimated light from the collection lens. The reimaging lens is configured to receive the light from the light dispersing element and direct the light onto a light detection device. A method of optically analyzing at least one sample is also provided.