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Published on: February 15, 2016
Quercetin immobilized on silica gel as a solid phase reagent for tin(IV) determination by using the
O A Zaporozhets1, L S Ivanko, I V Marchenko
1Analytical Chemistry Department, Taras Shevchenko Kyiv University, Volodymyearska str. 64, 03033 Kiev, Ukraine.
Talanta
|October 31, 2008
Summary
Researchers developed a new Quercetin-based sorbent for detecting tin (Sn(IV)). This method efficiently pre-concentrates and determines tin in high-purity zinc materials with a low detection limit.
Area of Science:
- Analytical Chemistry
- Materials Science
- Environmental Science
Background:
- Developing efficient methods for trace metal determination is crucial.
- Quercetin, a natural flavonoid, shows potential as a chelating agent.
- Solid-phase extraction offers advantages for sample pre-concentration.
Purpose of the Study:
- To synthesize and characterize a novel chelating sorbent using Quercetin.
- To evaluate the sorbent's efficacy for pre-concentrating and determining Tin(IV) (Sn(IV)).
- To apply the developed method for Sn(IV) analysis in high-purity zinc.
Main Methods:
- Adsorption of 3,3',4',5,7-pentahydroxyflavone (Quercetin) onto a solid support.
- Characterization using sorption isotherms and IR-spectroscopy.
- Sorption-spectroscopic determination of Sn(IV) at optimized pH (1.8-2.2).
Main Results:
- A solid-phase Quercetin sorbent was successfully prepared from an acetone-hexane mixture.
- Quantitative recovery of Sn(IV) was achieved at pH 1.8-2.2.
- The method demonstrated a low detection limit of 0.06 mg/l and linearity up to 1.2 mg/l.
Conclusions:
- The developed Quercetin-based sorbent is effective for Sn(IV) pre-concentration and determination.
- The method exhibits satisfactory analytical characteristics and tolerance to other metal ions.
- This technique is suitable for analyzing Sn(IV) in high-purity zinc materials.
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