Organic chemistry
1. Development of ultrasound-assisted emulsification microextraction for the determination of trace zinc and copper by flame atomic absorption spectrometry

Shahryar Abbasi; Mahmoud Roushani; Hadi Noorizadeh

Volume 7, Issue 4. pp. 352-471, Serial No. 25 , Autumn 2019, , Pages 445-454

http://dx.doi.org/10.30473/icc.2019.44276.1516

Abstract
  In this work, we developed a method based on ultrasound-assisted emulsification microextraction (USAEME) for the determination of zinc and copper by flame atomic absorption spectrometry (FAAS). The method is based on the use of the organic solvent carbon tetrachloride (CCl4) as an extraction solvent. ...  Read More

Development of ultrasound-assisted emulsification microextraction for the determination of trace zinc and copper by flame atomic absorption spectrometry


Analytical chemistry
2. Determination of trace amounts of chromium ions in water and food samples using ligand-less solid phase extraction-based modified nano-boehmite(AlOOH)

Mohammad Rezaiati; Farhad Salimi; Changiz Karami

Volume 5, Issue 4, pp. 364-493, Serial No. 17 , Autumn 2017, , Pages 397-406

Abstract
  Chromium is one of the hazardous pollutants in industrial effluents. In this study, a new nano-boehmite modified with sodium dodecyl sulphate is developed for preconcentration trace amounts of chromium ions as a prior step to its determination by flame atomic absorption spectrometry. We investigated ...  Read More

Determination of trace amounts of chromium ions in water and food samples using ligand-less solid phase extraction-based modified nano-boehmite(AlOOH)