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:
Mar. 21, 2006
Filed:
Mar. 31, 2004
Takao Moriyama, Takatsuki, JP;
Michiko Inoue, Takatsuki, JP;
Takao Moriyama, Takatsuki, JP;
Michiko Inoue, Takatsuki, JP;
Rigaku Industrial Corporation, Osaka, JP;
Abstract
To provide a sample retainer for X-ray fluorescence analysis, which is used in pretreating a liquid sample and then in X-ray fluorescence analysis of contents of such liquid sample, can sufficiently improve the limit of detection by suppressing the background and, also, allowing the fluorescent X-rays of a high intensity to be emitted uniformly, the sample retainercomprises a ring-shaped pedestal; a hydrophobic filmof a thickness smaller than 10 μm and having a peripheral portionheld by the pedestal and also having a transmitting portionfor passage of X-rays therethrough; and a sheet-like liquid absorbent elementapplied to the transmitting portionof the hydrophobic filmand having a thickness within the range of 1 to 100 μm; wherein a liquid sampleis adapted to be dispensed dropwise onto and dried on the liquid absorbent elementwith contents of the liquid sampleconsequently retained thereon.