Environmental Friendly Synthetic Modification of Amberlite XAD-2 Resin for the Removal of Highly Toxic Hexavalent Chromium from Water.

Amberlite XAD-2 functionalized by coupling through -C=N- spacer with isatin via an environmental friendly protocol. The modified resin was used for the evaluation of its sorption capacity towards toxic Cr (VI) ions using spectrophotometer. pH, volume, sorbent amount, initial concentration of Cr(VI) ions, and agitation time were optimized.

Development and implication of a capillary electrophoresis methodology for ciprofloxacin, paracetamol and diclofenac sodium in pharmaceutical formulations and simultaneously in human urine samples.

This work studies the development of a simple and fairly rapid methodology for simultaneous determination/separation of three frequently co-administered drugs; ciprofloxacin (CIP), paracetamol (PCT) and diclofenac sodium (DIC) using capillary electrophoresis (CE) with UV detection at 260 nm. Separation was achieved in only 6.5 min with a simple buffer of sodium tetraborate (50 mM) at pH 9.