Bhadani, S N and Tiwari, M and Agrawal, A and Kavipurapu, C S (1994) Spectrophotometric determination of fe(iii) with tiron in the presence of cationic surfactant and its application for the determination of iron in al-alloys and cu-based alloys. Mikrochimica Acta, 117 (1-2). pp. 15-22.
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Abstract
A sensitive spectrophotometric method for the determination of iron with tiron and a cationic surfactant, cetylpyridinium chloride, at pH 5.6 is reported. The complex is extracted into a chloroform-propan-2-ol (4:1) mixture and shows maximum absorbance at 520 nm. Beer's law is obeyed in the range 1-14 mu g/ml with an average molar absorptivity of 158001 mol(-1) cm(-1). The molar ratio as determined by Job's method for Fe:tiron:CPC is 1:4:3. Interferences by various ions are examined. Zr,Ti and Mo interfere heavily. The method is applied for the determination of iron in Al-based and Cu-based alloys, using appropriate masking agents.
| Item Type: | Article |
|---|---|
| Official URL/DOI: | http://www.nmlindia.org |
| Uncontrolled Keywords: | Extraction; Complex |
| Divisions: | Metal Extraction and Forming |
| ID Code: | 965 |
| Deposited By: | Sahu A K |
| Deposited On: | 11 Jun 2010 11:58 |
| Last Modified: | 13 Dec 2011 16:32 |
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