Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing liquid or solid sample
Reexamination Certificate
2004-01-30
2011-12-06
Shibuya, Mark (Department: 1641)
Chemical apparatus and process disinfecting, deodorizing, preser
Analyzer, structured indicator, or manipulative laboratory...
Means for analyzing liquid or solid sample
C324S326000
Reexamination Certificate
active
08071027
ABSTRACT:
The invention relates to a method for selectively detecting and/or quantifying superparamagnetic and/or ferromagnetic particles on analytes. The method is characterized in that a frequency component of magnetic fields (15, 18), which is generated due to the non-linearity of the magnetization characteristic curve of the particles, is measured at a mixing frequency. A device for selectively detecting and/or quantifying superparamagnetic and/or ferromagnetic particles on analytes comprises: a container (12) that contains particles, which are to be detected and/or quantified, on analytes; at least one oscillator (13, 16; 25) for generating frequencies of alternating magnetic fields (15, 18); at least one field generator (14, 17) for subjecting the analytes to alternating magnetic fields (15, 18); a magnetic field sensor (20) for measuring a response magnetic field (19) of the particles, and; at least one phase-sensitive detector (21, 23). These elements are configured in such a manner as to enable a frequency component of the magnetic fields (15, 18), which is generated due to the non-linearity of the magnetization characteristic curve of the particles, to be measured at a mixing frequency.
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Krause Hans-Joachim
Miethe Peter
Plaksin Dmitry
Wolters Norbert
Zhang Yi
Do Pensee
Forschungszentrum Juelich GmbH
Shibuya Mark
Wilford Andrew
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