A calibrator for fluorosensor
Опубликовано: 02-08-2007
Автор(ы): Anatoly Skirda, Christopher Owen, Eugene Tokhtuev, Vikto Slobodyan
Принадлежит: Ecolab Inc, Eugene Tokhtuev
Реферат: A multichannel fluorosensor includes an optical module and an electronic module combined in a watertight housing with an underwater connector. The fluorosensor has an integral calibrator for periodical sensitivity validation of the fluorosensor. The optical module has one or several excitation channels and one or several emission channels that use a mutual focusing system. To increase efficiency, the excitation and emission channels each have a micro-collimator made with one or more ball lenses. Each excitation channel has a light emitting diode and an optical filter. Each emission channel has a photodiode with a preamplifier and an optical filter. The electronic module connects directly to the optical module and includes a lock-in amplifier, a power supply and a controller with an A/D converter and a connector. The calibrator provides a response proportional to the excitation intensity, and matches with spectral parameter of fluorescence for the analyzed fluorescent substance.
A calibration slide for fluorescence detection instruments and process of preparation
Номер патента: WO2006007766A1. Автор: Jing Cheng,Lianghong Guo,Wenjun Yang,Yue Ge,Shuying Zhao. Владелец: CAPITALBIO CORPORATION. Дата публикации: 2006-01-26.