%0 Journal Article
%T Comtuter screen photo-assisted techiniques for chemical sensing
%A Filippini
%A D
%A Lundstr£¿m
%A I
%J Anales de la Asociaci£¿3n Qu£¿-mica Argentina
%D 2005
%I Scientific Electronic Library Online
%X the paper deals with the use of the computer screen as a light source in colorimetric experiments (light absorption, reflection, scattering, emission) with a web camera as a detector. this combination will be described in some detail and some examples of its applications given, related mainly to biomedical analysis. it is e.g. shown how the computer/web camera platform can be used to read arrays of biomedical samples and to perform colorimetric diagnostic tests. it is furthermore shown that the set-up can give fingerprints of coloured substances through a simultaneous measurement of both absorption and emission of light. the use of the computer screen photo- assisted technique as an electronic nose is also described. finally further developments and possibilities for the computer screen photo-assisted techniques are speculated upon.
%U http://www.scielo.org.ar/scielo.php?script=sci_abstract&pid=S0365-03752005000100001&lng=en&nrm=iso&tlng=en