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Vladimiro Mujica

Publications (3)

Application of Newton’s Zero Order Caustic for Analysis and Measurement: Part III – Light Scattering

Antonio A. Garcia, Luis Nuñez, Angel Lastra Miranda & Vladimiro Mujica · International Research Journal of Pure and Applied Chemistry · 2013

When light is incident upon a liquid suspension that has an oblate spheroid shape, the size and presence of particles can be determined by measuring light intensity exiting the sample or by imaging the scattered light using a digital camera. This dual analysis system is facilitat...

Open access Research Article 10.9734/IRJPAC/2014/5899

Application of Newton’s Zero Order Caustic for Analysis and Measurement: Part II Fluorescence

Antonio A. Garcia, Luis Nuñez, Carissa Henricksen & Vladimiro Mujica · International Research Journal of Pure and Applied Chemistry · 2013

An oblate spheroid-shaped liquid solution acts as a lens through the phenomenon of Newton’s zero order caustic resulting in the focusing of a low power source into high intensity light within the sample to detect and measure fluorescence. Microwatt LED sources can be used to meas...

Open access Research Article 10.9734/IRJPAC/2014/5898

Application of Newton’s Zero Order Caustic for Analysis and Measurement: Part-I Absorbance

Antonio A. Garcia, Luis Nuñez, Charles John, Habtom Hadish, Victor Orioke & Vladimiro Mujica · International Research Journal of Pure and Applied Chemistry · 2013

When light is incident upon a liquid solution droplet containing a light absorbing solute and it is formed into a spheroid shape, absorbance can be measured and related to concentration of the light absorbing species in a manner analogous to standard spectrophotometry. However, t...

Open access Research Article 10.9734/IRJPAC/2014/5897