The National University's corporate testing and analysis center won the second prize of the China Gold Association Science and Technology Award
Time:
2014-07-06 13:17
Recently, the research project "Chemical Analysis Method for Gold-bearing Carbon", a collaboration between Changchun Gold Research Institute and the National University Company Testing Center, was awarded the second prize of the China Gold Association Science and Technology Award by the China Gold Association Science and Technology Award Committee.
The "Chemical Analysis Method for Gold-bearing Carbon" is a national standard. This standard consists of two parts: Part 1 is the determination of gold content, which specifies the method for determining the gold content in gold-bearing carbon, using the fire assay gravimetric method (arbitration method) for analysis; Part 2 is the determination of silver content by flame atomic absorption spectrometry, which specifies the method for determining the silver content in gold-bearing carbon, using a combination of ashing and acid dissolution pretreatment methods. Each part of this standard consists of clauses such as scope, method summary, reagents, instruments, samples, analysis steps, calculation of analysis results, precision, and quality control and assurance. Its release and implementation have filled the world's gap in chemical analysis methods for gold-bearing carbon, providing an effective quality control basis for current gold enterprise process production.
Due to the varying degree of adsorption of gold by activated carbon in gold-bearing carbon, and the particle size of the carbon directly affecting the adsorption of gold by the carbon, the original analysis method was the Mossbauer analysis method. However, this method does not thoroughly analyze the gold in the particles, resulting in some gold being encapsulated by the carbon and not being completely dissolved. The "Chemical Analysis Method for Gold-bearing Carbon" uses fire assay analysis and then analyzes the gold content in the fire assay residue, ashing carbon particles of varying sizes into fine particulate ash, thus thoroughly dissolving the particles and determining the gold content in an acidic medium. This method has higher accuracy and comprehensively analyzes the gold content in gold-bearing carbon, capable of analyzing samples with gold content up to 10000g, exceeding previous limitations.
"Chemical Analysis Method for Gold-bearing Carbon" is the result of the National University Company Testing Center's continuous improvement of the conversion rate of scientific research achievements and the realization of scientific and technological innovation, reflecting the improvement of the overall scientific research level of the testing center.
Related News
Gold prices continue to fluctuate.
Gold prices have shown a volatile pattern in the short term, affected by the weakening of the US dollar and changes in sentiment due to easing geopolitical tensions.
Gold prices rise again! Multiple risks fuel safe-haven demand.
From the perspective of the international market, the tense situation in the Middle East, the escalation of the Russia-Ukraine conflict, and the continued high uncertainty surrounding the US Trump administration's tariff policies have driven up gold prices due to increased risk aversion in the market. Furthermore, a significant recent change in the gold market is that gold has become the second-largest reserve asset for central banks globally. How should the future trend of gold prices be viewed? Several analysts have indicated that in the short term, gold prices may fluctuate due to factors such as tariff easing and sudden changes in the geopolitical situation; in the medium to long term, gold prices are still in an upward channel.
As the Russia-Ukraine conflict enters its third year, global attention is once again focused on this geopolitical crisis. According to Dow Jones Newswires, US President Donald Trump made startling remarks at the White House on Thursday (June 5), stating that neither Russia nor Ukraine is prepared for peace, and that both sides may "continue fighting" until one side is willing to compromise. This statement not only signals the failure of his attempts to broker peace, but also introduces new uncertainty to the global geopolitical and economic markets.
Recently, good news came from the China Machinery Metallurgy and Building Materials Workers' Technical Association. In the 2025 National Machinery Metallurgy and Building Materials Industry Workers' Technological Innovation Achievement Award, Shandong Guoda Gold Co., Ltd.'s "Purification of Crude Arsenic Flue Dust to Produce Arsenic Trioxide Industrial Application" and "Key Technology Application for High-Value Utilization of Complex Copper-Gold Ore Resources" projects won the first prize and the second prize respectively. This honor is a high recognition of the workers' technological innovation ability and the effectiveness of achievement transformation, and also fully demonstrates the company's outstanding strength in the industry.
Gold prices return to $3300! Wall Street banks show significant divergence in long-term outlook
In fact, as gold prices fluctuate, Wall Street's major banks have recently shown a clear divergence in their views on gold prices. Unlike Goldman Sachs and Deutsche Bank, which are optimistic about gold's performance, Citigroup believes that the long-term outlook for gold prices is not optimistic.
Although gold prices rose this week, market volatility has clearly increased. While the US-UK agreement is symbolic, its content is limited and insufficient to alleviate concerns about a global economic slowdown. Therefore, gold prices will continue to fluctuate between safe havens and policy signals, closely monitoring the Federal Reserve's interest rate expectations and global trade sentiment.