A novel highly selective colorimetric sensor for aluminum (III) ion using Schiff base derivative

• A novel colorimetric sensor was easily synthesized by condensation.
• It showed effective colorimetric single selectivity and high sensitivity for Al3+.
• The detection limit is 1.0 × 10−8 M Al3+ based on UV–vis changes.

A novel colorimetric sensor, 2-hydroxy naphthaldehyde isonicotinoyl hydrazone (HINH), was easily synthesized by the condensation of isoniazid and 2-hydroxy-1-naphthaldehyde. The as-prepared compound showed effective colorimetric single selectivity and high sensitivity for aluminum cation in CH3CN/H2O (1:3) binary solutions. The detection limit is 1.0 × 10−8 M Al3+ based on UV–vis changes.

A novel colorimetric sensor, 2-hydroxy naphthaldehyde isonicotinoyl hydrazone (HINH), showed effective colorimetric single selectivity and high sensitivity for aluminum cation in CH3CN/H2O (1:3) binary solutions. The detection limit is 1.0 × 10−8 M Al3+ based on UV–vis changes.Figure optionsDownload as PowerPoint slide