TY - JOUR
T1 - Low-cost spectroscopy with a variable multivariate optical element
AU - Uzunbajakava, Natallia
AU - de Peinder, Peter
AU - 't Hooft, Gert W.
AU - Van Gogh, Antonius T.M.
PY - 2006/10/15
Y1 - 2006/10/15
N2 - Here, successful realization of a variable multivariate optical element (VMOE) based on a transmissive liquid crystal (LC) panel is reported. In contrast to conventional multivariate optical elements (MOEs), a single VMOE is a dynamic system, allowing measurement of numerous analytes in different mixtures. Furthermore, VMOE has superior spectral resolution in comparison to a conventional MOE. It is demonstrated here that the system implemented in a Raman spectrometer predicts the concentration of each individual component in toluene-acetonitrile-cyclohexane mixtures with a prediction error of <6% (mass percentage). With a dedicated optical design of the setup, a prediction error smaller than 2% is expected to be feasible for the current chemical system.
AB - Here, successful realization of a variable multivariate optical element (VMOE) based on a transmissive liquid crystal (LC) panel is reported. In contrast to conventional multivariate optical elements (MOEs), a single VMOE is a dynamic system, allowing measurement of numerous analytes in different mixtures. Furthermore, VMOE has superior spectral resolution in comparison to a conventional MOE. It is demonstrated here that the system implemented in a Raman spectrometer predicts the concentration of each individual component in toluene-acetonitrile-cyclohexane mixtures with a prediction error of <6% (mass percentage). With a dedicated optical design of the setup, a prediction error smaller than 2% is expected to be feasible for the current chemical system.
UR - http://www.scopus.com/inward/record.url?scp=33750207867&partnerID=8YFLogxK
U2 - 10.1021/ac060985o
DO - 10.1021/ac060985o
M3 - Article
AN - SCOPUS:33750207867
SN - 0003-2700
VL - 78
SP - 7302
EP - 7308
JO - Analytical Chemistry
JF - Analytical Chemistry
IS - 20
ER -