Journal
JOURNAL OF ANALYTICAL CHEMISTRY
Volume 75, Issue 10, Pages 1264-1269Publisher
PLEIADES PUBLISHING INC
DOI: 10.1134/S1061934820100081
Keywords
lead; solid phase extraction; Amberlite CG-120; flame atomic absorption; slotted quartz tube; two-step preconcentration
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Funding
- Fundamental Research Funds for the Mehmet Akif Ersoy University [216-YL-14]
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Pb(II) ions were separated/preconcentrated and detected by a two-step preconcentration method (Amberlite CG-120 resin and slotted quartz tube (SQT) flame atomic absorption). The first preconcentration step was the adsorption of Pb(II) on Amberlite CG-120 resin in the drinking, spring and lake water samples before detection and then its elution using 5 mL of 3 M nitric acid. The second preconcentration step was conducted using SQT device with flame atomic absorption detection. Using a two-step preconcentration method, enrichment factor of 560 was found and detection and quantitation limits were 0.23 and 0.8 mu g/L, respectively. The accuracy of the method was tested by analysis of standard reference material (Environmental Matrix Reference Material, Lake Water, TMDA-70.2) at a 95% confidence level.
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