Optical sensing of aromatic hydrocarbons using Langmuir-Blodgett films of a Schiff base co-ordination polymer
1998
Abstract Aromatic hydrocarbon sensing has been successfully demonstrated using surface plasmon resonance (SPR) with Langmuir–Blodgett (LB) films of a 5,5′-methylenebis ( N -hexadecylsaliclidenamine) Schiff base complex. The LB layers were exposed to concentrations of benzene, toluene, ethanol and water vapours. This resulted in a reversible shift in the resonance depth and position of the SPR curves. The co-ordination polymer was found to be most sensitive to benzene and could reliably detect concentrations of this vapour down to 100 vapour parts per million.
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