In all stages of mining and processing, it is necessary to determine the elemental composition and grade of base metal ores. This process is critical for assessing the feasibility of ore mining during the preliminary exploration phase and is also applied to ore concentration analysis. The determination of base metal concentrations requires highly precise and accurate technologies that can efficiently generate and manage analytical data from large numbers of samples. Therefore, in mineral sample analysis, there are extremely high expectations for sample processing throughput and stability. Additionally, the grades of ore samples often cover an extremely wide concentration range. In practical operations, it is common to encounter analytical elements with contents as high as several tens of percent and as low as parts per million. For example, samples containing 40% copper are not uncommon. For this reason, any analytical technology applied to mineral analysis must be capable of handling samples with such broad concentration ranges. This paper follows the national standard GB/T 6730.81-2020, using the TOPEX+ microwave digester produced by Eiyo Technology to digest samples, and the 2300 ICP-MS produced by Hengsheng Mass Spectrometry to achieve high-throughput, stable, and accurate analysis in a single sample injection.
Conclusions of the Article
The inductively coupled plasma mass spectrometry (iQuad 2300) series produced by Hengsheng Mass Spectrometry adopts a unique electronic dilution technology, which can effectively eliminate polyatomic ion interference under constant flow conditions and intelligently identify the differences in mass spectral interference of different elements, so as to achieve precise and differentiated interference suppression effects. This technology can simply, quickly and effectively detect lead, cadmium, arsenic, mercury, barium, cobalt and molybdenum elements in such samples.
Building upon intelligent microwave digestion technology, the system integrates with an ICP-MS analytical platform to achieve complete end-to-end automation.
The fully automated process includes acid addition, sample loading, digestion, cooling, dilution, homogenization, sample solution transfer, and ICP-MS auto-triggered analysis, enabling high-throughput automated sample analysis.”
High analytical throughput
Fully automatic analysis of more than 200 samples per day
Three independent microwave oven cavities can run three different heating programs at the same time, which can increase the work efficiency by 10 times and greatly speed up the scientific research process.
Robust analytical performance
The microwave robot has 96 sample positions, and each digestion tank can withstand 45 Bar pressure and 240°C temperature, which truly realizes high-pressure and high-throughput microwave digestion and has strong sample processing capabilities.
The ICP-MS part is well-known in the industry for its “robust performance”. Its long-term stability and collision cell have strong performance in reducing interference, and its performance is impressive.
Remote monitoring, unattended operation
2300P has remote monitoring function. Users can monitor the instrument remotely through mobile phone APP to reduce manpower and realize unattended work.