Identification of complex chemical mixtures using portable hand-held devices

submit enquiry
Portable Raman spectrometer © Shutterstock
Portable Raman spectrometer © Shutterstock

University: University of Edinburgh

Sector(s): Electronics, Sensors & Photonics, Aerospace, Aviation & Transport, Chemical, Healthcare & Pharmaceuticals, Other

About Opportunity:

Implementation of a Raman spectral decomposition technique that allows effective identification of complex mixtures. The computationally and memory efficient software enables new functionality to be added to portable hand-held devices.

The Challenge

Raman spectroscopy is an established method for identifying unknown materials across various sectors. Conventional analysis methods are based on comparing the measured spectrum with a reference spectral library of known chemicals to find the best match. While effective for identifying a single spectrum from a library, a sample composed of a mixture of different chemicals provides a greater challenge.

Technology

Edinburgh researchers have developed a Raman spectral decomposition technique based on a new fast sparse approximation method. Inputting a set of reference spectra and an unknown mixture yields the identity of mixture elements and their contribution percentages. It also has the capability of detecting cases where the mixture has a spectrum outside the reference library. The method is highly computationally and memory efficient, which means that it can run on a low power real-time platform. Implemented as a hardware independent C package, which can handle a given library and input spectrum, the technology enables use with hand-held devices. This provides a portable, non-invasive approach for identification of real-life mixtures of chemical substances.

Exemplification Data

A hardware independent C version of the mixture-matching algorithm has been prepared. Performance has been successfully demonstrated in the identification of real mixtures in different measurement scenarios, including where components are close to noise level.

Development Status: Prototype Development

Key Benefits:

  • Can be implemented on portable hand-held devices
  • Provides real-time results
  • Effective identification of complex mixtures and component composition
  • Efficient analysis of unknown hazardous material

Applications:

  • Software implemented on hand-held Raman spectrometers for use in Defence, Homeland Security, Life Sciences and Anti-counterfeiting

IP Status:

Software package

Publications: A Sparse Regularized Model for Raman Spectral Analysis, Wu et al, Sensor Signal Processing for Defence, Edinburgh, 2014

The University of Edinburgh is seeking potential industry partners to license this technology.

Enquiry

Please enter your name.

Please enter the name of the company you work for.

Is your company an SME?

Please select the country you are in.

Please select what part of the UK you are in.

Please select from the following options.

Please enter your email address.

To help us process your enquiry faster please enter some details about the information you are interested in.

Words remaining:

Related Opportunities

  • High Frequency Radiofrequency Pulse Generator

    The new methodology employs types of multipliers as switches. Such devices may be found with intrinsic bandwidths of many Gigahertz and because they are designed to be high frequency components have very small internal capacitances. The non-linearity inherent in the multiplication process will speed...

    Expires: Created:
  • High Voltage Condition Monitoring

    Transformers play a key role in the transmission and distribution network, getting power from source to end-user, so any fault is critical and needs to be identified before any damage to the transformer or surrounding components leads to power black-out or catastrophic failure.

    Expires: Created:
  • Electric Motor Monitoring System

    The technology relates to the field of monitoring commutator electric motors. Specifically, this relates to detecting high-frequency RF arcing events through a non-contact small screened loop antenna system, using the measured RF signals to provide a means for monitoring, recording and diagnosing a ...

    Expires: Created:
  • Smart Building Management System

    A novel building energy management system has been developed for managing energy usage; heating, cooling, lighting etc. The system is based on a wireless sensor architecture and advanced artificial intelligence network. The system is able to optimise environmental controls based on remote, real-tim...

    Expires: Created:
  • 3D Micro Snapshot

    Researchers at the University of Glasgow have developed a novel, low-cost hybrid imaging technique, 3D Micro Snapshot, which permits 3D images to be captured in a single snapshot and with extended depth-of-field (DOF).

    Expires: Created:

Alerts Signup

Sign up to our technology alerts and be the first to hear about any new technology opportunities from Scotland's universities


Register Now for University Technology.com Alerts


Search Filter

Share this page

Use the buttons below to share these technology opportunities on your favourite social networking site. You can also share them from inside the individual opportunity.