| Table of contents | |
| On-line preconcentration system using a mini-column of activated carbon for cadmium and lead determination in water by flame atomic absorption spectrometry. Sueli Pércio Quináia, Maria do Carmo Ezequiel Rollemberg, José Bento Borba da Silva p. 225 | |
| Porous anodic alumina electrode modified with a thin film of Prussian blue: Application to amperometric detection of hydrogen peroxide. Guorong Xu, Fenglian Ren, Shihui Si, Qingfeng Yi p. 234 | |
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A new tin (IV) complex as a neutral carrier for a salicylate-selective liquid membrane sensor. M.R. Ganjali, P. Norouzi, M. Ghorbani, A. Ahmadi p. 244 | |
| FT-IR Spectrophotometric analysis of acetylsalicylic acid and its pharmaceutical formulations. Andrei A. Bunaciu, Hassan Y. Aboul-Enein and Şerban Fleschin p. 253 | |
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Simultaneous solid phase extraction of Au (III) and Pd (II) as chloride complexes on naphthalene-methyltrioctyl ammonium chloride adsorbent. N. Pourreza and Sh. Elhami p. 260 | |
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A study on copper (II) extraction from sulphate medium via cloud-point extraction with N-salicylideneaniline ligand in presence of non-ionic surfactant. Mohamed Hadj Youcef, Tayeb Benabdallah and Hocine Ilikti p. 267 |