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LASER INDUCED BREAKDOWN SPECTROMETRY DETECTOR
专利权人:
发明人:
申请号:
EP15745255.8
公开号:
EP3166493A1
申请日:
2015.07.10
申请国别(地区):
EP
年份:
2017
代理人:
摘要:
A spectroscopy device is disclosed for inline monitoring of analytes in bulk fluid streams, capable of maintaining sterile conditions. The device comprises a cassette suitable for holding a fluid analyte (151) and having a laser entry wall part and a detector wall part, the laser entry wall part arranged to be optically transparent to laser radiation of a predetermined wavelength and the detector wall part arranged to be optically transparent for spectral parts of interest. Laser transmission optics are provided to focus a laser beam to produce a breakdown plasma discharge within the fluid inside the cassette. A photodetector substrate is provided comprising an array of photosensors, tuned to detect characteristic emission lines from the plasma. The photodetector substrate is conformal to at least the detector wall part of the cassette. A placement provision is arranged for user removable placement of the cassette. Dichroic hot and cold mirrors are applied to selectively transmit/reflect excitation laser light and light emitted by the plasma.
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