Generation of nitric oxide (NO) by a plasma needle is studied by means of mass spectrometry. The plasma needle is an atm. glow generated by a radio-frequency excitation in a mixt. of helium and air. This source is used for the treatment of living tissues, and nitric oxide may be one of the most important active agents in plasma therapy. Efficient NO generation is of particular importance in the treatment of cardiovascular diseases. Mass spectrometric measurements have been performed under various plasma conditions; gas compn. in the plasma and conversion of feed gases (nitrogen and oxygen) into other species has been studied. Up to 30% of the N2 and O2 input is consumed in the discharge, and NO has been identified as the main conversion product. [on SciFinder (R)]
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Stoffels et al. (2006) studied this question.
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