The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 22, 1984
Filed:
Sep. 03, 1981
Hitachi, Ltd., Tokyo, JP;
Abstract
A Zeeman atomic absorption spectrophotometer which monitors atomic absorption signals after a sample is introduced into the chemical flame atomizing portion. A signal peak value is measured in the portion of atomic absorption signals rising after the sample is introduced, or in the portion of atomic absorption signals breaking after the introduction of the sample is discontinued. A relation between the peak value and the sample concentration establishes a monovalent function. According to the conventional method, a relation between an average value of atomic absorption signals within a predetermined period of time and the concentration of specimen establishes a divalent function, and it is difficult to measure the samples, particularly in high-concentration regions. According to the present invention, however, it is possible to measure the samples of even high concentrations without having to dilute the samples.