Chemistry: analytical and immunological testing – Pyrolysis – combustion – or elevated temperature conversion
Reexamination Certificate
2006-03-28
2006-03-28
Warden, Jill (Department: 1743)
Chemistry: analytical and immunological testing
Pyrolysis, combustion, or elevated temperature conversion
C436S160000, C436S043000, C436S147000, C436S149000, C436S152000, C436S171000, C436S174000, C436S172000, C422S078000, C422S069000, C422S080000, C422S088000, C422S089000, C422S082050, C422S082070, C422S082080, C422S082090, C073S001010, C073S001020, C073S023200, C073S023310
Reexamination Certificate
active
07018845
ABSTRACT:
A more efficient method for combustion or oxidation of samples containing nitrogen, phosphorus and/or sulfur to their corresponding oxides is disclosed, where method uses multi-staged addition of an oxidizing agent to enhance oxidation and liberation of nitrogen, phosphorus and/or sulfur oxides for subsequent detection. The method of the present invention allows for the injection of larger samples or the introduction of a greater amount of sample per unit of time which results in a larger amount of analyte being delivered to the detector per unit of time, thereby improving detection limits and detection efficiency.
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Petroleum Analyzer Company, LP
Sines Brian
Strozier Robert W.
Warden Jill
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