| Table of contents | |
| Crystal structure and spectroscopic studies of an inorganic-organic hybrid compound (C6H10N2)2(Cd3Cl10)·4H2O. M. El Glaoui, R. Kefi, F. Lefebvre, E. Jeanneau and C. Ben Nasr p. 241 | |
| Simultaneous measurement of theophylline and cellulose acetate phthalate in phosphate buffer by UV analysis. Anna Angela Barba, Serafina Chirico, Annalisa Dalmoro and Gaetano Lamberti p. 249 | |
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High performance liquid chromatography and gas chromatography/mass spectrometry applied to analysis of photochemical products. Changming Zhang and Xiaohang Zhang p. 254 | |
| Optimization of Sn determination in macroalgae by microwave digestion and transversely heated furnace atomic absorption spectrometry analysis. M. El Ati-Hellal, F. Hellal, M. Dachraoui, A. Hedhili p. 262 | |
| On-line preconcentration system employing C18-bonded silica minicolumn for chromium (III) and chromium (VI) speciation by flame atomic absorption spectrometry. Catarinie D. Pereira, João G. Techy, Sueli P. Quináia and Edgard M. Ganzarolli p. 275 | |
| Tautomeric structures of some 2-arylazo-1-hydroxycyclohex-1-en-3-one: Spectroscopic investigations and theoretical studies. Y.H. Ebead, R.F. Fandy, S.E. Zayed, E. Abd-Elshafi, S.A. Ibrahim p. 282 |