• Measuring the Fluorescence Quantum Efficiency of Liquid Samples

    Fluorescent substances absorb a characteristic wavelength of that substance and then emit a fluorescent light with a wavelength longer than the absorbed light. The ratio of photons absorbed versus emitted as fluorescent light is referred to as the fluorescence quantum yield or quantum efficiency and is associated with the fluorescence intensity of fluorescent substances.
     
    This article describes using an RF-6000 spectrofluorophotometer with an integrating sphere attached to determine the fluorescence quantum efficiency and measure quinine sulfate.

  • CD and Pb Analysis under the RoHS Directive with EDX

    In this study, ED-XRF and WEEE & RoHS (Electrical and Electronic Equipment) and ELV directives are analyzed.

    Instrument: Shimadzu EDX-7000 Energy Dispersive X-Ray Fluorescence Spectrometer (EDX)

  • GCMS measurement of gas released from rechargeable lithium ion batteries

    In this study, the GCMS analysis of the gas sample released from the rechargeable lithium ion battery kept at 80oC for 5 days is included.

    Instrument: Shimadzu GC-2010 Plus Gas Chromatograph