Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Reexamination Certificate
2007-08-14
2007-08-14
Soderquist, Arlen (Department: 1743)
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
C250S339070, C250S339080, C250S339100, C250S339110, C250S339120, C422S068100, C422S082050, C422S082090, C436S086000, C436S087000, C436S091000, C436S092000, C436S093000, C436S094000, C436S095000, C436S096000, C436S097000, C436S098000, C436S099000, C436S171000, C436S501000, C436S518000, C436S524000, C436S527000
Reexamination Certificate
active
10234343
ABSTRACT:
Apparatus and method for acquiring an infrared spectrum of a sample having or suspected to have an amide I band, an amide II band, an amide III band, an amide A band, an OH stretching region or a combination thereof. A representative method includes providing a sample; providing an internal reflecting element (IRE) with a functionalized tip; contacting the sample with the IRE to form a sample-IRE interface; directing a beam of infrared (IR) radiation through the IRE under conditions such that the IR radiation interacts with the sample-IRE interface once; recording a reflectance profile over a range of preselected frequencies, whereby an infrared spectrum of the of a sample having or suspected of having an amide I band, an amide II band, an amide III band, an amide A band, an OH stretching region or a combination thereof, disposed in an aqueous solution is acquired. Representative apparatus includes an internal reflecting element (IRE) comprising a reflection face located on the IRE at a region of intended contact between the IRE and a solublized sample; an infrared radiation source for supplying an evanescent wave of infrared radiation and directing the same from the outside of the IRE to the inside thereof so as to cause the infrared radiation to be incident on the reflection face, wherein the infrared radiation is reflected from the reflection face once; a sample cell; a functionalized tip comprising a surface-immobilized probe that partially or completely fills the volume exposed to the evanescent wave; and a detector for detecting the once-reflected infrared radiation.
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Franzen Stefan
Lappi Simon E.
Jenkins Wilson Taylor & Hunt, P.A.
North Carolina State University
Soderquist Arlen
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