X-ray or gamma ray systems or devices – Specific application – Fluorescence
Reexamination Certificate
2006-03-21
2006-03-21
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Fluorescence
C378S066000, C378S045000, C422S051000
Reexamination Certificate
active
07016463
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 retainer5comprises a ring-shaped pedestal2; a hydrophobic film3of a thickness smaller than 10 μm and having a peripheral portion3aheld by the pedestal and also having a transmitting portion3bfor passage of X-rays therethrough; and a sheet-like liquid absorbent element4applied to the transmitting portion3bof the hydrophobic film3and having a thickness within the range of 1 to 100 μm; wherein a liquid sample1is adapted to be dispensed dropwise onto and dried on the liquid absorbent element4bwith contents of the liquid sample1consequently retained thereon.
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“Keiko x-sen ni yoru Suiyoekichu no Biryo Genso no Bunseki”, Takao Moriyama, et al., The Society of Chemical Engineers, Japan Dai 69, Mar. 2, 2004; p. 759.
Inoue Michiko
Moriyama Takao
Glick Edward J.
Kiknadze Irakli
Rigaku Industrial Corporation
Sughrue & Mion, PLLC
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