Analytical system for the analysis of ferrovanadium using spark ablation coupled with inductively coupled plasma atomic emission spectrometry

Abstract

Spark ablation coupled with excitation in an argon inductively coupled plasma is applied to the analysis of remelted ferrovanadium. A medium-voltage spark at a high-repetition rate was used as the sampling technique for samples prepared using a high-frequency remelting system. Problems of sample fracturing were avoided by dilution of the ferroalloy with pure iron. Calibration graphs were obtained with samples prepared from a commercial ferrovanadium alloy, previously analysed using standard wet chemical methods and diluted with pure iron at two different dilution ratios. The two FeV to Fe dilution ratios were selected in order to cover the desired range of concentrations. When using an Fe line as the internal standard, the relative standard deviations for the major element (V) are below 0.3% (V content, 35-80°/0). The limits of determination for the minor elements (Mn, Cu, Al and Si) are below the required IS0 specifications. The accuracy of the developed method was tested by the analysis of three reference materials.

Depth profiling of nanometer thin layers by pulsed micro-discharge with inductively coupled plasma mass spectrometry

“…In analytical chemistry, spark ablation combined with inductively coupled plasma mass spectrometry (SA-ICPMS) or atomic emission spectrometry (SA-ICPAES) has been successfully applied for the bulk analysis of alloy steels [8], ferrovanadium [9], and automotive catalytic converters [10], and there are several reports illustrating an arc nebulization technique used for elemental analysis [11,12]. These techniques have already proven to be efficient in the field of direct solid analysis.…”

Spark Ablation Inductively Coupled Plasma Mass Spectrometry Applied to the Semi-Quantitative Panoramic Analysis of Ferroalloys

“…As part of continuing research work on spark ablation ICP applied to steel industry products, the technique was used as a rapid system for the semi-quantitative analysis of ferroalloys. In previous works 13,14 SA-ICP-AES (atomic emission spectroscopy) was applied to the analysis of Fe-V and Fe-Cr from remelted bulk m etal samples, to electrical arc furnace dusts from graphite pellets 15 and to low-alloyed steels; 16 SA-ICP-MS has recently been used for trace analysis in low-and high-alloy steels. 17 In this study a semi-quantitative SA-ICP-MS analysis protocol for powdered ferroalloys briquetted into pellets with graphite was developed to match sample matrix and conductivity.…”

Trace Elemental Analysis of Metals by Laser Ablation Inductively Coupled Plasma Time-of-Flight Mass Spectrometry

“…Over the years, many different analytical techniques have been used for the analysis of ultra-high-purity metals. These include graphite-furnace atomic absorption (GFAA) [1], inductively coupled plasma optical emission spectroscopy (ICP-OES) [2], neutron activation analysis (NAA) [3], and glow-discharge mass spectrometry (GDMS) [4]. Recently, however, the demand has been for higher-purity metals.…”