Variation in performance at different positions of an ultrasonic VialTweeter: A study based on various physical and chemical activities

T. Joyce Tiong, Liang Ee Low, Hui Jiun Teoh, Jit Kai Chin, Sivakumar Manickam

Research output: Contribution to journalArticle

7 Citations (Scopus)


Ultrasonic VialTweeter is used for the sonication of small volume samples. It contains a titanium block with 8 holes for vial insertion, to be used simultaneously for batch operation. In this investigation, the ultrasonic and sonochemical performance of ultrasonic VialTweeter has been evaluated at its different positions. Experimental results using calorimetry, ultrasonic capillary effect, sonochemiluminescence and degradation of Rhodamine B showed that the sonochemical activity differs greatly at different positions along the VialTweeter, with positions 3 and 4 showing the maximum efficiency whereas the positions 1 and 2 being the least effective positions. These results were further verified by acoustic pressure simulation, confirming that certain locations in the VialTweeter may not perform in the same way as others due to the variation in acoustic pressure at different locations.

Original languageEnglish
Pages (from-to)165-170
Number of pages6
JournalUltrasonics Sonochemistry
Early online date19 May 2015
Publication statusPublished - 1 Nov 2015
Externally publishedYes


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