The optimisation of sorption sensor arrays for use in ambient conditions

King Tong Lau, Jason Micklefield, Jonathan M. Slater*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)


Solvation models have been used to define the essential measurement parameters for a general purpose array and candidate sensor materials evaluated in ambient conditions. Where suitable existing coating materials were not available novel materials were synthesised and evaluated. Three different arrays each consisting of eight sensors were studied to derive a final array. The resulting array of eight sensors exhibited an excellent ability to distinguish different chemical functionalities and was capable of detecting a slight change of molecular size within the same chemical group. The discrimination of two component mixtures of various concentrations was also demonstrated. Principal component analysis (PCA) and discriminant function analysis (DFA) were employed to display the array responses.

Original languageEnglish
Pages (from-to)69-79
Number of pages11
JournalSensors and Actuators, B: Chemical
Issue number1
Publication statusPublished - 15 Jul 1998
Externally publishedYes


  • Array sensor
  • BAW device
  • Gas sensors
  • Pattern recognition
  • Piezoelectric

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