Abstract: A method for detecting or identifying an analyte, the method comprising: applying an analyte in fluid, for example a drug, to a paper microfluidic device; exciting Raman scattering in the analyte in the paper microfluidic device at a multiple different wavelengths; capturing a signal at each wavelength; and analyzing the captured signal at each wavelength to identify a Raman signal associated with the analyte.

Abstract: An apparatus for positioning at least one of a tool, a part and an instructional manual at a point of use includes an arm formed by a plurality of elongated sections which are pivotable and adjustable in a horizontal plane. A rack and pinion device with a manually operable crank is provided for mounting and moving the arm in a vertical direction. A tray is attached to a distal end of the arm.