Drelich, J., Fang, Ch., White, C.L., “Measurement of Interfacial Tension in Fluid-Fluid Systems”, Encyclopedia of Surface and Colloid Science, Marcel
Dekker, Inc. 2002, P3152-3166.
This article summarized measurement method for IFT instrumentation equipment.
classification of IFT measurement method
Use of a spectrophotometer for biodiesel quality sensing.
Paper number 053133, 2005 ASAE Annual Meeting. Artur Zawadzki, Dev Shrestha, Brian He.
The test procedures to assure ASTM biodiesel quality are not being widely implemented because of the lengthy procedures and laboratory equipment requirements. A critical need in the increasingly emerging biodiesel industry right now is a reliable, affordable and rapid test method for determining the blends of biodiesel in diesel fuel. As an effort to explore a reliable and rapid method, a spectrophotometer was used to scan the blends of #2 fossil diesel and biodiesel for spectrums in the wavelength range of 190-1100 nm.
The shape of the spectrum curve was found to be different for different biodiesel feedstock where as relative absorbance and characteristic peaks of absorbance curve was attenuated with increasing amount of diesel in the blend. Shape characteristics were fed into neural network to predict the biodiesel feedstock and blend level in biodiesel-diesel mixture.
A Home-made Simple Set-up for Measurement of Electrochemical Surface Tension Spectrum on a Mercury Drop Electrode
Xiang Qin LIN∗, Liang Dong FENG, Hao ZHANG. Chinese Chemical Letters Vol. 17, No. 4, pp 493-495, 2006.
Recording surface tension curves at a mercury drop during potential scanning based on photo-sensitive detection system.
Optical imaging methods can be used for accurate surface tension measurement, however, continuous tension curve is hardly obtained by this technique.170419-493-b050453-p3.pdf
Spectral measurements were made with an ultraviolet-visible spectrophotometer (Varian-Cary Win UV 100). For each concentration, buffer solution were added. The solution was then diluted to the mark. The absorbance spectra of the complex solution were recorded from 350 to 700 nm. A total of 24 spectra reading were obtained. 5 were used to test the network whilst the remaining 19 were used for the training.