[Preconcentration of trace Fe, Mn, Cu and Cd in water with charcoal and determination by flame atomic absorption spectroscopy].
The absorption of Fe, Mn, Cu and Cd by charcoal and the influence of pH, particle size and temperature on absorption were studied. A method for the preconcentration of these irons in water was established, and with flame atomic absorption spectroscopy a content as low as microgram/L could be determined. The recovery and the coefficient of variance (n = 6) were in the range of 90-113% and 2.6-9.9%, respectively. The proposed method is simple, rapid, accurate reproducible and suitable for the preconcentration and determination of titled metal irons in different kinds of water.
Luo
Y
Y
Zhang
K
K
Li
C
C
Zhang
Y
Y
He
J
J
D002104:Cadmium / Q000032:analysis*; D002606:Charcoal; D003300:Copper / Q000032:analysis*; D007501:Iron / Q000032:analysis*; D008345:Manganese / Q000032:analysis*; D013054:Spectrophotometry, Atomic / Q000379:methods; D014881:Water Supply / Q000032:analysis*
D002104:Cadmium; D002606:Charcoal; D008345:Manganese; D003300:Copper; D007501:Iron