Analytical performance of high-voltage neon plasma in glow discharge optical emission spectrometry

In a high-voltage Ne glow discharge plasma (Ne-GDP), calibration factors as well as the limit of determination were compared between atomic resonance lines and singly-ionized lines of copper and aluminium in optical emission spectrometry. These elements have intense ionic lines which are excited by resonance charge-transfer collisions of Ne ions. The ionic lines gave bette r detection sensitivity in the Ne-GDP, whereas the atomic resonance lines w ere commonly employed as analytical Lines in the other plasma sources such as Ar-GDP and ICP. The limit of determination was 1.3 x 10(-3) mass % for t he Cu II 248.58 nm line and 1.0 x 10(-3) mass % Al for the Al II 358.66 nm Line at a discharge parameter of 1.60 kV/36 mA.