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Tip-Enhanced Laser desorption (LD) or ablation (LA) in transmission or reflective geometry, at an acute, right or obtuse angle, directly into a liquid junction at the surface of interest that is formed between a solvent dispensing and retrieving AFM probe and the surface.
Measurement of volatile particles emitted by modern jet engines is a daunting task.
Laser desorption (LD) or ablation (LA) in transmission or reflective geometry, at an acute, right or obtuse angle, directly into a liquid junction at the surface of interest that is formed between a solvent dispensing and retrieving unit and the surface. These processes
The invention is directed towards the use of small diameter anodes such as carbon fibers, carbon nanotubes, and nanostructured Si wafers which are useful as anodes in radiation detection devices such as proportional radiation counters (PCs).
Preparation of dried sample spots on planar media is becoming a popular sample storage, preparation, shipping and analysis medium.
Dispersion of particulate material in a liquid media can be enhanced by application of sonic or ultrasonic energy. Application of acoustic energy can be accomplished by several transduction means such as piezoelectric, magnetostrictive, and electromagnetic.
The extreme sensitivity of SERS is dominated by the electromagnetic enhancement, referring to the intense, spatially varying E fields produced by plasmonic coupling between closely spaced metal nanoparticles.
The subject invention is an advanced chlorophyll pulse amplitude modulation fluorometer for environmental monitoring. Detection is achieved by algal biosensors that grow naturally in source drinking waters. The principle of detection is chlorophyll fluorescence measurement.
The present invention provides improved spatial resolution (100 microns or less) for charge particle detection or cold neutron detection with extremely low sensitivity to other radiation such as x-rays or gamma rays, defining the time of the event within ~1 nanoseconds.
An anomaly seen in previous surface sampling probes was a notable occasional inconsistency of timing between spot sampling and signal detection.