Spray electrification

The charge separation resulting from the alteration of a liquid-gas interface has been variously termed spray electrification and balloelectricity and... 

Mowery and Juvet (70) have employed the spray electrification effect in a novel form as a LC detector, primarily for use with reversed-phase liquid chromatography. A stream of the eluent from the column is allowed to strike a conducting target to form a spray and the potential of the electrode is monitored. A diagram of their detector is shown in Figure 35. The target electrode is an electrically isolated conducting rod which is connected to a suitable electrometer that permits both the measurement of electrode potential and electrode current. 

Types The primaiy cause of electrostatic charging is contact electrification, which takes place when two different materials are brought into contact and separated. Other causes include induction charging, the formation of sprays, and impingement of charged mist on an ungrounded conductor. 

D5. Dodd, E. E., The statistics of liquid spray and dust electrification by the Hopper and Laby method, J. Appl. Phys. 24, 73 (1953). 

Murtomaa, M. Savolainen, M. Christiansen, L. Rantanen, J. Laine, E. Yliruusi, J. Static electrification of powders during spray drying. J. Electrostat. 2004, 62, 63-72. 

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