US 5,178,836 A · Analytical method for particulate substances, relevant analytical equipment and its application system

Abstract

This invention relates to an analytical method and a relevant equipment for particulate substances in a sample with the detection of acoustic waves generated in the sample with the irradiation of onto the sample. In this invention, the light power density of the irradiating light onto the sample is set high enough above the breakdown threshold of the particulate substances in the sample, and low enough below the breakdown threshold of the media, and the particulate substances in the sample are counted by detecting the acoustic waves generated by the breakdown of the particulate substances. The particulate substances are also analyzed for their components on the basis of the light signal (emission spectrum) which is detected with a dispersed spectrum from the light which is generated by the breakdown of the particulate substances.

Claims25

Dependent claims

A method for enabling fluid sample analysis including analysis of a particulate substance within a fluid sample, comprising the steps of:

applying energy to a fluid sample sufficient to cause breakdown of a particulate substance contained within the fluid sample so as to generate a signal indicative of the particulate substance as a result of the breakdown of the particulate substance, applied energy being insufficient to cause a breakdown of the fluid sample;
detecting the generated signal resulting from the breakdown of the particulate substance;
and
analyzing the detected signal so as to obtain information relating to the particulate substance.

1 more element

Dependencies are inferred from the claim text.

Analytical method for particulate substances, relevant analytical equipment and its application system

Life of this patent

Analytical method for particulate substances, relevant analytical equipment and its application system

Life of this patent

Abstract

Claims25