Method and apparatus for spectrometry

An apparatus comprising:

• a waveguide:
• a spectral dispersion element;
• wherein the apparatus is configured to be moveably attachable to a portable radio communication device comprising a transmitter and a receiver, the portable radio communication device comprising a radiation sensing element and a radiation source, the apparatus being configured to be moveably attachable to the portable radio communication device to provide a first configuration in which the waveguide is positioned to transmit radiation from the radiation source towards an analyte region and/or from the analyte region towards the dispersion element, wherein the dispersion element comprises a plurality of diffraction gratings, each grating being configured to diffract radiation from the analyte region towards the radiation sensing element;
• and such that the dispersion element is positioned to disperse radiation from the analyte region to form a spectrum which is provided towards the radiation sensing element for spectral analysis, and a second configuration in which the radiation sensing element and radiation source are able to capture and illuminate a scene for image capture.