Sample Preparation
A total of six certified reference materials were analyzed during this study: GBM305 4 and GBM313 3 and OREAS 501B, 502B, 503B and 504B . These CRMs represent typical feed ore samples encountered at a copper gold mine. They were first digested in an SPB sample preparation block using aqua regia that had been made from analytical reage...
Calibration Standards
Calibration standards were prepared in 30% v/v hydrochloric acid to match the prepared samples acid content. Table 1 shows the concentrations. An undigested acid blank was used for the calibration blank. Table 1.Calibration Standards . Source: PerkinElmer
Instrument and Method Parameters
Analysis was conducted using the Avio 220 Max hybrid simultaneous ICP OES. Table 2 shows the instrument conditions used. Table 2.Avio 220 Max ICP OES Sample Introduction and Instrument Conditions. Source: PerkinElmer There was a risk of blockages from both high levels of dissolved solids and any residual particulates in the digested samples. The study, therefore, employed a PEEK low flow Gemcone nebulizer due to its high blockage resistance. RF power was set to 1500 watts, while plasma gas wa...
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Figure 1 displays the calibration graphs, highlighting that all wavelengths exhibited excellent linearity with correlation coefficients gt; 0.9999 using a linear through zero equation. Figure 1.Calibration plots for Ag, As, Cu, Fe. Image Credit: PerkinElmer Figure 2 displays an emission spectrum for GBM313 3. The grey bars in the figure represent the pixels on the CCD detector employed in the analyte peak measurement, while the green crosses represent background correction points. Figure 2. GBM313 3 Spectra for silver, arsenic, copper, and iron. Image Credit: PerkinElmer The Avio 220 Max ICP OESs excellent sensitivity meant that it was possible to obtain a clear peak for 0.031 mg/L Ag at Ag 328.068 nm. Silver has the potential to suffer from spectral interferences from adjacent wavelengths due to the high concentrations of iron, copper and titanium, but these elements did not interfere with silver thanks to the high resolution of the Avio 220 Max. Figure 3 details the results f...
The study presented here has successfully illustrated the analytical speed advantage offered by the Avio 220 Max hybrid simultaneous ICP OESwhen used for multi element analysis. This offers a number of advantages over the conventional flame AAS technique, which can only measure a single element at a time. It is possible to measure both major and trace elements in the same method using dual view, and the instrument offers a rapid analysis time of just 2 minutes per sample for copper, iron, arsenic and silver. The Avio 220 Maxs exceptional sensitivity makes it ideal for the accurate measurement of historically challenging elements at low levels. The Avio 220 Max ICP OES also boasts excellent cost effectiveness due to its use of Flat Plate plasma technology and its capacity to switch the instrument off when it is not analyzing samples without notably impacting overall throughput. This is thanks to its best in class start up time of just 10 minutes from a cold start.
Produced from materials originally authored by Peter Dickenson from PerkinElmer, Inc. This information has been sourced, reviewed and adapted from materials provided by PerkinElmer. For more information on this source, please visit PerkinElmer.
Copper minerals, even though minor components of precious metal ores, dissolve in these cyanide leaching solutions, consume cyanide, cause fouling of mill solutions, and thus interfere with the precipitation and recovery of gold.2,3,4 Here is a summary of laboratory investigations on the use of cyanide solutions as extractants for copper from ...
Collectable Copper Ores and Minerals. This is a selection of the most commonly collected copper ores. Also included are a few other interesting ores of metals often alloyed with copper such as zinc, lead and bismuth. Illustrations are being added where available.
Globally, copper, silver, and gold orebody grades have been dropping, and the mineralogy surrounding them has become more diversified and complex. The cyanidation process for gold production has remained dominant for over 130 years because of its selectivity and feasibility in the mining industry. For this reason, the industry has been adjusting its methods for the extraction of gold, by ...
Gold in the porphyry copper ore may appear as native gold, electrum, cuproaurid and sulphosalts associated with silver. During the flotation of porphyry copper gold ores, emphasis is usually placed on the production of a marketable copper gold concentrate and optimization of gold recovery is usually constrained by the marketability of its ...
1. Introduction. The association of gold and copper mineralization in commercially viable ore is a common occurrence. At one end of the spectrum is the predominantly copper ore, which contains levels of gold mineralization. This would be uneconomic to mine for its gold content, but the gold provides a significant opportunity value.
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Analysis of Copper Gold Ore
Sample Preparation
A total of six certified reference materials were analyzed during this study: GBM305 4 and GBM313 3 and OREAS 501B, 502B, 503B and 504B . These CRMs represent typical feed ore samples encountered at a copper gold mine. They were first digested in an SPB sample preparation block using aqua regia that had been made from analytical reage...
Calibration Standards
Calibration standards were prepared in 30% v/v hydrochloric acid to match the prepared samples acid content. Table 1 shows the concentrations. An undigested acid blank was used for the calibration blank. Table 1.Calibration Standards . Source: PerkinElmer
Instrument and Method Parameters
Analysis was conducted using the Avio 220 Max hybrid simultaneous ICP OES. Table 2 shows the instrument conditions used. Table 2.Avio 220 Max ICP OES Sample Introduction and Instrument Conditions. Source: PerkinElmer There was a risk of blockages from both high levels of dissolved solids and any residual particulates in the digested samples. The study, therefore, employed a PEEK low flow Gemcone nebulizer due to its high blockage resistance. RF power was set to 1500 watts, while plasma gas wa...
See full list on azom
Figure 1 displays the calibration graphs, highlighting that all wavelengths exhibited excellent linearity with correlation coefficients gt; 0.9999 using a linear through zero equation. Figure 1.Calibration plots for Ag, As, Cu, Fe. Image Credit: PerkinElmer Figure 2 displays an emission spectrum for GBM313 3. The grey bars in the figure represent the pixels on the CCD detector employed in the analyte peak measurement, while the green crosses represent background correction points. Figure 2. GBM313 3 Spectra for silver, arsenic, copper, and iron. Image Credit: PerkinElmer The Avio 220 Max ICP OESs excellent sensitivity meant that it was possible to obtain a clear peak for 0.031 mg/L Ag at Ag 328.068 nm. Silver has the potential to suffer from spectral interferences from adjacent wavelengths due to the high concentrations of iron, copper and titanium, but these elements did not interfere with silver thanks to the high resolution of the Avio 220 Max. Figure 3 details the results f...
See full list on azom
The study presented here has successfully illustrated the analytical speed advantage offered by the Avio 220 Max hybrid simultaneous ICP OESwhen used for multi element analysis. This offers a number of advantages over the conventional flame AAS technique, which can only measure a single element at a time. It is possible to measure both major and trace elements in the same method using dual view, and the instrument offers a rapid analysis time of just 2 minutes per sample for copper, iron, arsenic and silver. The Avio 220 Maxs exceptional sensitivity makes it ideal for the accurate measurement of historically challenging elements at low levels. The Avio 220 Max ICP OES also boasts excellent cost effectiveness due to its use of Flat Plate plasma technology and its capacity to switch the instrument off when it is not analyzing samples without notably impacting overall throughput. This is thanks to its best in class start up time of just 10 minutes from a cold start.
See full list on azom
Produced from materials originally authored by Peter Dickenson from PerkinElmer, Inc. This information has been sourced, reviewed and adapted from materials provided by PerkinElmer. For more information on this source, please visit PerkinElmer.
See full list on azom