Octadecyl bonded silica membrane disk modified with Cyanex302 for separation and flame atomic absorption spectrometric determination of nickel from tap water and industrial effluent.
A simple and reliable method based upon impregnation of Cyanex302 on octadecyl bonded silica membrane disk has been developed for separation and atomic absorption spectrometric determination of nickel. The influence of various parameters like aqueous phase pH, flow rate and volume of eluent were investigated systematically to optimize the conditions for quantitative sorption and desorption of nickel. The break through volume for nickel was greater than 1.0 dm(3), enrichment factor more than 100 and a detection limit of 2.1 microg dm(-3) was achieved. The method applied for detection of nickel in tap water and effluent sample had a relative standard deviation (R.S.D.) of 0.4%.
Karve
Manjusha
M
Department of Chemistry, University of Mumbai, Vidyanagari, Mumbai 400098, India. mkarve@yahoo.com
Rajgor
Reeta V
RV
D000327:Adsorption; D000473:Alkanes / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste / Q000032:analysis* / Q000517:prevention & control; D009532:Nickel / Q000032:analysis* / Q000302:isolation & purification; D009946:Organothiophosphorus Compounds / Q000737:chemistry; D010721:Phosphinic Acids / Q000737:chemistry; D015203:Reproducibility of Results; D012822:Silicon Dioxide / Q000737:chemistry*; D013054:Spectrophotometry, Atomic / Q000379:methods* / Q000592:standards; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000302:isolation & purification
D000473:Alkanes; C523128:Cyanex 302; D007220:Industrial Waste; D009946:Organothiophosphorus Compounds; D010721:Phosphinic Acids; D014874:Water Pollutants, Chemical; D012822:Silicon Dioxide; D009532:Nickel; C022883:octadecane