Turnitin Report_Prosiding Internasional_Bohari_Trace Analysis of Cd (II) Ion Using PSDVB-EDTA in Pre-concentration Technique with Off-line Method

Abstract

The trace analysis of Cd(II) ion used polystyrene divinyl benzene-ethylene diamine tetraacetate (PSDVB-EDTA) as the material column filler in pre-concentration technique with off-line method has been done. The pre-concentration method was performed by using a column filled with PSDVB-EDTA activated at pH 6 with sodium acetate. The optimal conditions for the best analytical performed in pre-concentration steps were 9 mL injection volume of water samples and 3 mL of 1.0 M HCl as elu-ent. The obtained retention capacity was 6.44 mg/g Cd(II)/g resin. The analytical performance of the method was very good; the limit of detection values was 3.85 µg.L-1. The reproducibility value expressed as percentage of coefficient variance was 4.1%. This method provided good accuracy in term of good recoveries in the range of 5 to 100 µg.L-1 without the effect of interferences in real water sample. The proposed method can certainly ana-lyze Cd(II) in water samples at the trace levels.