SYSTEM AND METHOD FOR OPTICAL CHEMICAL SENSING

摘要

The invention comprises a method for determining an analyte in which a dye solution is illuminated to induce a first and a second output light at a first and second wavelength, respectively, and the analyte concentration is determined from the measured first and second output intensities. The apparatus includes a probe (12) containing a dye solution, a light source (24), a frequency-sensitive photodetector (28) and a controller (90).