Method and a system for determination of particles in a liquid sample
First Claim
1. A method for the assessment of at least one quantity parameter and/or at least one quality parameter of biological particles in a liquid analyte material, comprisingapplying a volume of a liquid sample representing the analyte material or particles isolated from a volume of liquid sample representing the analyte material, to an exposing domain from which exposing domain electromagnetic signals from the sample in the domain can pass to the exterior,transmitting, onto the sample, light from a light emitting diode,exposing, onto an array of active detection elements, an at least one-dimensional spatial representation of fluorescent signals having passed from the domain, the representation being one which is detectable as an intensity by individual active detection elements, under conditions which will permit processing of the intensities detected by the array of detection elements during the exposure in such a manner that representations of electromagnetic signals from the particles are identified as distinct from representations of electromagnetic signals from background signals,processing the intensities detected by the detection elements in such a manner that signals from the particles are identified as distinct from background signals,and correlating the results of the processing to the at least one quantity parameter and/or the at least one quality parameter of the liquid analyte material.
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Abstract
The present invention relates to a method for the assessment of quantity and quality parameters of biological particles in a liquid analyte material. The method comprises applying a volume of a liquid sample to an exposing domain from which exposing domain electromagnetic signals from the sample in the domain can pass to the exterior, and exposing, onto an array of active detection elements such as CCD-elements, a spatial representation of electromagnetic signals having passed from the domain, the representation being detectable as an intensity by individual active detection elements, under conditions permitting processing of the intensities detected by the array of detection elements during the exposure in such a manner that representations of electromagnetic signals from the biological particles are identified as distinct from representations of electromagnetic signals from background signals. The size of the volume of the liquid sample is sufficiently large to permit the assessment of the quantity and quality parameters to fulfill a predetermined requirement to the statistical quality of the assessment based on substantially one exposure.
68 Citations
97 Claims
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1. A method for the assessment of at least one quantity parameter and/or at least one quality parameter of biological particles in a liquid analyte material, comprising
applying a volume of a liquid sample representing the analyte material or particles isolated from a volume of liquid sample representing the analyte material, to an exposing domain from which exposing domain electromagnetic signals from the sample in the domain can pass to the exterior, transmitting, onto the sample, light from a light emitting diode, exposing, onto an array of active detection elements, an at least one-dimensional spatial representation of fluorescent signals having passed from the domain, the representation being one which is detectable as an intensity by individual active detection elements, under conditions which will permit processing of the intensities detected by the array of detection elements during the exposure in such a manner that representations of electromagnetic signals from the particles are identified as distinct from representations of electromagnetic signals from background signals, processing the intensities detected by the detection elements in such a manner that signals from the particles are identified as distinct from background signals, and correlating the results of the processing to the at least one quantity parameter and/or the at least one quality parameter of the liquid analyte material.
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51. A system for the assessment of at least one quantity parameter and/or at least one quality parameter of biological particles in a liquid analyte material, comprising a sample compartment adapted to accommodate a volume of liquid sample of the liquid analyte material, a light emitting diode arranged to transmit light onto the sample,
an array of active detection elements onto which an at least one-dimensional spatial image of said volume is exposed, the image being one which is detectable as an intensity by individual active detection elements, under conditions which will permit processing of the intensities detected by the array of detection elements during the exposure in such a manner that images of electromagnetic signals from the biological particles are identified as distinct from images of electromagnetic signals from background signals, a lens consisting of one or several elements for focusing an image of electromagnetic signals from at least part of the exposing domain onto the array of detection elements, wherein the system is adapted for receiving photoluminescence by having one or more means for separating electromagnetic radiation into substantially one or more wavelength components or wavebands, a computer unit for processing the intensities detected by the detection elements in such a manner that signals from the biological particles are identified as distinct from background signals, and for correlating the results of the processing to the at least one quantity parameter and/or the at least one quality parameter of the liquid analyte material.
Specification