A5052436945- Analytical chemistry methods development
- Heavy metals in environment
- Chromium effects and bioremediation
- Electrochemical Analysis and Applications
- Pesticide Residue Analysis and Safety
Institute of Occupational Safety
2019
Tunis El Manar University
2019
Hexavalent chromium Cr(VI) is a well-established carcinogen associated with lung, nasal, and sinus cancer. threshold limit values in workroom air have been recently lowered. Consequently, the currently available analytical methods are insufficiently sensitive or high cost. In this paper, simple, cost-effective, sensitive, reproducible method using solid-phase extraction electrothermal atomic absorption spectrometry for determination of hexavalent airborne samples reported. The validation...
A new approach of cloud point extraction CPE procedure is optimized for hexavalent chromium determination in airborne dusts. Triton X-114 used as a surfactant and 1-(2-pyridylazo)-2-naphthol ...
A method for the determination of trace Cd +2 in water by cloud point extraction: a preconcentration step conjunction with detection spectrophotometry is described.The effects some important variables were studied using central composite design and optimum experimental conditions evaluated desirability function combined response surface methodology (RSM).In this work 10 mL analyte solution containing 20 μg L -1 cadmium, pH was adjusted to 4.50 × -6 mol concentration dithizone 2.5% (v/v)...