Related Experiment Video
Updated: Aug 7, 2026

Multimodal Nonlinear Hyperspectral Chemical Imaging Using Line-Scanning Vibrational Sum-Frequency Generation Microscopy
Published on: December 1, 2023
Heterogeneous optochemical VOC sensing layers selected by ESI-mass spectrometry
G Ciccarella1, J Spadavecchia, R Rella
1Dip. di Ingegneria dell'Innovazione, Università degli Studi di Lecce, Via Monteroni, 73100 Lecce, Italy. giuseppe.ciccarella@unile.it
Abstract:
Spin-coated films of 29H,31H-tetra-4-(2,4-di-tert-amylphenoxy)phthalocyanine (H(2)Pc) and [kappaP,mu-kappaS-(dppeS)Pt(CH(3))](2)[BF(4)](2) have been used as sensing layers deposited in thin film form for the detection of VOCs. The sensing behaviour of the blend was predicted on the basis of mass spectrometric determinations performed on H(2)Pc/Pt-complex solutions, by monitoring the formation of gas-phase ions at the electrospray interface. The addition of small amounts of acetonitrile produced a [M+41](+) peak whereas the addition of similar amounts of methanol, ethanol and isopropyl alcohol did not give the corresponding [M+ROH](+) species. These results were confirmed by sensing tests. A pure phthalocyanine optosensing element did not show relevant selectivity. Conversely, the heterogeneous sensing layer obtained by spin-coating deposition of a Pt-complex/H(2)Pc blend allowed the sensing of acetonitrile vapours with respect to the above mentioned alcohols.
Related Concept Videos
Electrospray Ionization (ESI) Mass Spectrometry
ESI utilizes electrical energy to transfer ions from the liquid phase of the sample into the...
Mass Spectrometry: Complex Analysis
GC–MS is a powerful hyphenated method commonly used in forensics and environmental...
High-Resolution Mass Spectrometry (HRMS)
High-Performance Liquid Chromatography: Types of Detectors
Mass Spectrum: Interpretation
Tandem Mass Spectrometry
