Asl Analytical, Inc.

Christine Esther Evans

Mark Allen Arnold

Jonathon Todd Olesberg

Edwin John Koerperick

Gary Wray Small

Gregory Allan Brower

A system and method for continuous, real-time process monitoring and control by means of near-infrared (NIR) spectroscopy provides analysis of static or flowing fluid streams which may range from clear to highly optically dense, including fluids primarily of aqueous composition. A NIR source passes through a wavelength selector to select one or more spectral segments, which are passed through the fluid stream at a fluid sampling interface and received at a sensor. A wavelength reference material is positioned in the optical path for calibration. Quantification of a plurality of characteristics or parameters of a fluid and suspended solids or cells contained therein may be performed. An all-solid-state implementation of the optical system ensures high robustness in laboratory and industrial settings.

Apparatus and method for automated process monitoring and control with near infrared spectroscopy

An optical sampling apparatus for disposable flexible bioprocessing vessels includes features for optical interrogation of the vessel contents by means of transmission or transflection spectroscopy. This optical interrogation allows for the determination of quantities and parameters of substances in fluids contained within the vessels during bioprocesses.

Near-infrared optical interfaces for disposable bioprocessing vessels

An optical probe with associated disposable polymer sheath for near-infrared optical interrogation of fluids within bioprocessing vessels by means of transmission or transflection spectroscopy provides for the determination of quantities and parameters of substances in fluids contained within bioprocessing vessels. Associated methods for use of the optical probe and associated sheath to determine quantities of substances in fluids and parameters of fluids during bioprocesses are provided.

Near-infrared optical probe and associated disposable sheath

An optical apparatus with a single-use, disposable fluid flow cartridge and cell and associated optical interface is employed in determining characteristics of a fluid and/or suspended materials or cells contained therein which are introduced into the apparatus. The optical interface communicates electromagnetic radiation from an optical instrument through the fluid within the cell and to an appropriate sensor within the optical instrument. The interaction of the electromagnetic radiation with the fluid is measured by the signal generated by the sensor. Fluid present within the cell may be static or flowing, allowing both discrete sample measurements and monitoring of continuous processes.

Growing community of inventors

North Liberty, IA, United States of America

Christine Esther Evans