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Table 1 Effect of the type, concentration, and volume of the elution solution on the recovery of Cd, Cu, and Pb ions [sample volume, 50 mL; amount of the metals 10 μg of Cd, Cu, and Pb; pH 8 for Cd, Cu, and Pb]

From: Mucor pusillus immobilized Amberlite XAD-4 biocomposites for preconcentration of heavy metal ions by solid-phase extraction method

Element Type of eluent Volume (mL) Concentration (mmol mL− 1) R%a
Cd HCl 5 1 86
10 1 99
HNO3 5 1 82
10 1 94
Cu HCl 5 1 84
10 1 97
HNO3 5 1 80
10 1 90
Pb HCl 5 1 86
10 1 96
HNO3 5 1 78
10 1 90
  1. aMean of three determinations