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Anal Bioanal Chem. 1996 Jun;355(3-4):252-3.

The analysis of conductive solid samples by r.f. capacitively coupled plasma at atmospheric pressure.

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  • 1Physics Department, University of Cluj, 3400, Cluj-Napoca, Romania.


A radiofrequency capacitively coupled plasma (rf CCP) with tip-ring electrode geometry has been used for the analysis of Al, Co, Cr, Cu, Mn, Mo, Ni, and V in low and medium alloyed steel. The sample is used as one of the electrodes of the plasma torch. The influence of plasma power, argon flow rate and distance between the electrodes on the analytical signals has been studied. The limits of detection are in the range of 0.001 to 0.048%. The dynamic range is three orders of magnitude.

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