Optical spectroscopic techniques, such as UV-VIS-NIR allow for the atline and online, real-time analysis of multiple parameters for quality control. These analytical techniques have been used for transmission measurements in various applications and are easily adapted to different sampling methods including fiber-optic immersion probes, reflection probes and flow-through cells. The sample is illuminated by a continuous, white light source. The transmitted light is then measured as a function of wavelength.
