| 摘要 |
Determining the presence of substances in a liquid or gas sample, where a selected micro-particle size category is taken for one of the possible substances in the sample to be identified, and prepared for bonding with the sample substance in a hybridizing phase, is new. The sample is passed through a measurement channel into a measurement dish, preferably illuminated by a laser beam, where the micro-particles are weakened differently. Determining the presence of substances in a liquid or gas sample, where a selected micro-particle size category is taken for one of the possible substances in the sample to be identified, and prepared for bonding with the sample substance in a hybridizing phase, is new. The sample is passed through a measurement channel into a measurement dish, preferably illuminated by a laser beam, where the micro-particles are weakened differently. The particle size signals are measured by a sensor, and the illumination generates a fluorescence which is also registered by the sensor. When a fluorescent light signal is detected apart from the particle size signal, then they can be classified to give the substance contained in the sample.
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