3 June 2011 Investigating a drop-on-demand microdispenser for standardized sample preparation
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The existing assortment of reference sample preparation methods presents a range of variability and reproducibility concerns, making it increasingly difficult to assess chemical detection technologies on a level playing field. We are investigating a drop-on-demand table-top printing platform which offers precise liquid sample deposition and is well suited for the preparation of effective reference materials. Current research includes the development of a sample preparation protocol for explosive materials testing based on drop-on-demand technology. A quartz crystal microbalance and Raman spectroscopy are used to investigate droplet and sample uniformity and reproducibility. Results are compared to samples prepared using a drop and dry method.
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Ellen L. Holthoff, Mikella E. Hankus, and Paul M. Pellegrino "Investigating a drop-on-demand microdispenser for standardized sample preparation", Proc. SPIE 8018, Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XII, 80181F (3 June 2011); doi: 10.1117/12.883451; https://doi.org/10.1117/12.883451

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