2010

Vibrating Quartz Sensor Characterizes Liquid Samples

This technology eliminates the need to run multiple tests to obtain a sample profile.

A novel analytical technology characterizes liquids for healthcare applications. As a drop of liquid evaporates on a vibrating quartz sensor, it undergoes distinctive phase changes representing the unique chemical and physical characteristics of the sample. This unique “fingerprint” represents information that is not readily available from any combination of analytical methods currently in use.

Previously, a sample profile could only be obtained by running a battery of tests on multiple laboratory instruments. This new holistic approach to analysis lowers both capital and operating costs per test. Proprietary algorithms are applied to the fingerprint, determining important product information such as authenticity, aging, and purity. These data are important in quality control testing, process testing, and product formulation.

A single instrument can run many different types of samples; it is the proprietary software that provides the unique result. No special interpretation or analysis of the data is necessary. The instrument creates a graphic representation of the drying process, and application of the algorithms reveals information about the sample.

The technology is based first on the comprehensive knowledge of the chemical and physical changes that take place during the “self-organization process” of liquids as they dry, and secondly, on the use of proprietary algorithms used to analyze electronic data collected. Holistically examining the drying process as opposed to piecing together multiple chemical or physical measurements gives the operator direct information about sample properties, eliminating the interpretation of multiple test results. Sample or product characteristics such as authenticity, aging, purity, and others can be assessed using one test on a single instrument. The drying process is determined by:

  • Surface tension
  • Wetability
  • Viscosity
  • Internal structure
  • Dispersion (for colloids)
  • Thermal conductivity
  • Ionic forces
  • Gel-forming substances Advantages of the technology include:
  • No sample preparation or reagents required; other methods often require sample preparation and often use hazardous chemicals.
  • A technician of a modest skill level can run the test.
  • Single instrument can run many different types of samples.

This technology is offered by Aria Analytics. For more information, view the yet2.com TechPak at http://info.hotims.com/28049-141.