Abstract: This invention provides a spherical lens optical immersion probe for use in analysis of solids, liquids, gases, powders, suspensions, slurries, particles and other homogeneous or heterogeneous samples. The use of a spherical lens in an optical immersion probe confers many advantages over traditional immersion probes including ease of use and accuracy of focus. The probe of this invention has applications to many types of optical spectroscopy methods including ultraviolet/visible (UV-Vis), near-infrared (NIR), mid-infrared (FTIR), fluorescence, and Raman spectroscopy. The spherical lens used in this invention is both the optical and sample interface in the analytical system, and may be used to both focus the excitation source and to collecting signal. Importantly, this invention has broad applications to any optical analytical technology that necessitates an optical immersion probe.

Abstract: This invention provides a spherical lens optical immersion probe for use in analysis of solids, liquids, gases, powders, suspensions, slurries, particles and other homogeneous or heterogeneous samples. The use of a spherical lens in an optical immersion probe confers many advantages over traditional immersion probes including ease of use and accuracy of focus. The probe of this invention has applications to many types of optical spectroscopy methods including ultraviolet/visible (UV-Vis), near infrared (NIR), mid-infrared (FTIR), fluorescence, and Raman spectroscopy. The spherical lens used in this invention is both the optical and sample interface in the analytical system, and may be used to both focus the excitation source and to collecting signal. Importantly, this invention has broad applications to any optical analytical technology that necessitates an optical immersion probe.

Abstract: This invention provides a spherical lens optical immersion probe for use in analysis of solids, liquids, gases, powders, suspensions, slurries, particles and other homogeneous or heterogeneous samples. The use of a spherical lens in an optical immersion probe confers many advantages over traditional immersion probes including ease of use and accuracy of focus. The probe of this invention has applications to many types of optical spectroscopy methods including ultraviolet/visible (UV-Vis), near-infrared (NIR), mid-infrared (FTIR), fluorescence, and Raman spectroscopy. The spherical lens used in this invention is both the optical and sample interface in the analytical system, and may be used to both focus the excitation source and to collecting signal. Importantly, this invention has broad applications to any optical analytical technology that necessitates an optical immersion probe.

Abstract: This invention provides a spherical lens optical immersion probe for use in analysis of solids, liquids, gases, powders, suspensions, slurries, particles and other homogeneous or heterogeneous samples. The use of a spherical lens in an optical immersion probe confers many advantages over traditional immersion probes including ease of use and accuracy of focus. The probe of this invention has applications to many types of optical spectroscopy methods including ultraviolet/visible (UV-Vis), near-infrared (NIR), mid-infrared (FTIR), fluorescence, and Raman spectroscopy. The spherical lens used in this invention is both the optical and sample interface in the analytical system, and may be used to both focus the excitation source and to collecting signal. Importantly, this invention has broad applications to any optical analytical technology that necessitates an optical immersion probe.

Abstract: There is disclosed a device capable of continuously measuring the presence and concentration of an analyte or analytes and a method for using said device in a liquid and/or a gas phase reaction volume. The inventive device comprises a sensor probe, a reservoir, and a detector. The inventive device delivers reagent to the sensor probe in a flow method to directly and continuously renew reagent, thereby allowing the continuous measurement of the presence and the concentration of an analyte or analytes.

Abstract: A fiber-optic sensor is formed from three optical fibers. The distal ends of the fibers are optically linked by bonding their cores and directing their ends to mirrors. A portion of one of the fibers near the bonded point is exposed directly to the fluid to be sensed. The transmission characteristics of this fiber, the signal fiber, is then affected by the chemical constituents of the fluid. Light directed into the proximal end of one of the other fibers, the input fiber, is split between the signal fiber and the remaining fiber, the reference fiber. The ratio of the light in the signal fiber to the light in the reference fiber provides an indication of the chemical constituents that minimizes errors introduced by factors such as bends in the fibers and temperature.

Abstract: There is disclosed an integrated spectrometer for chemical analysis by evanescent electromagnetic radiation absorption in a reaction volume. The spectrometer comprises a noninteractive waveguide, a substrate, an entrance grating and an exit grating, an electromagnetic radiation source, and an electromagnetic radiation sensing device. There is further disclosed a chemical sensor to determine the pressure and concentration of a chemical species in a mixture comprising an interactive waveguide, a substrate, an entrance grating and an exit grating, an electromagnetic radiation source, and an electromagnetic radiation sensing device.