Analytical chemistry
Simultaneous determination of Tropaeolin O and brilliant blue in food samples after cloud point extraction

Rouhollah Heydari; Farzaneh Bastami; Mohammad Hosseini; Mohammad Alimoradi

Volume 5, Issue 3, pp. 237-363, Serial No. 16 , July 2017, , Pages 242-251

Abstract
  In this study, a simple and low-cost method was developed for extraction and pre-concentration of brilliant blue(BB) and Tropaeolin O(TO) in food samples using cloud point extraction (CPE) prior to spectrophotometric determination. The effects of main factors such as pH, surfactant and salt concentrations, ...  Read More

Simultaneous determination of Tropaeolin O and brilliant blue in food samples after cloud point extraction


Analytical chemistry
Wavelength region selection and spectrophotometric simultaneous determination of naphthol isomers based on net analyte signal

Ahmadreza Amraei; Ali Niazi; Mohammad Alimoradi

Volume 5, Issue 2, pp. 121-236, Serial No. 15 , April 2017, , Pages 207-216

Abstract
  Naphthol isomers were simultaneously and spectrophotometrically determined in wastewater, using a model based on net analyte signal (NAS). The calibration method used is a variation of the original hybrid linear analysis method as proposed by Goicoechea and Olivieri (HLA/GO). Owing to spectral interferences, ...  Read More

Wavelength region selection and spectrophotometric simultaneous determination of naphthol isomers based on net analyte signal