Precious metals content testing for various waste materials such as waste circuit boards, jewelry, waste liquids, gold-plated waste, catalysts, etc. is needed nationwide, including ores, mine powders, garbage, circuit boards, sludge, and precious metal catalysts (gold, silver, palladium, platinum, rhodium, ruthenium, iridium, osmium), non-ferrous metals, ferrous metals, rare earth metals, ore identification, and composition analysis.Contact Hongzheng Laboratory at Zhuo Gong 18178727378-18565044686.
Hongzheng Testing is a professional laboratory for metal testing, precious metal testing, and platinum group metal testing. Here we share some methods and standards for testing precious metals (gold and silver) and platinum group metals (platinum, palladium, rhodium, iridium, osmium, ruthenium). For more information, please add WeChat: 18178727378, follow the public account: Xiaoka Testing DAO.
Hongzheng Laboratory is a professional third-party laboratory for metal testing, precious metal testing, and platinum group metal testing.
What are the precious metal testing projects for catalysts? The content includes eight metals: gold, silver, ruthenium, rhodium, palladium, osmium, iridium, and platinum. (For precious metal testing, contact Dongguan Hongzheng Testing Technology Co., Ltd.)
Hongzheng Laboratory is a professional third-party laboratory for metal testing, precious metal testing, and platinum group metal testing.
In daily life, there are many waste materials with high precious metal content that have extraction value, such as: 1. Mobile phones, including: mobile phone boards, mobile phone chips, flex cables, battery contacts, mobile phone SIM cards;2. Computers, including: computer boards, CPUs, memory sticks, connectors;3. Wastewater containing gold or palladium from circuit board factories;4. Waste materials from jewelry factories;5. Waste materials from electronic component factories and electronics factories.These waste materials contain non-ferrous metals, ferrous metals, glass, etc. Moreover, many high-value non-ferrous metals such as platinum, gold, palladium, silver, copper, and tin have a content of precious metals (gold, silver, platinum, palladium) that is much greater than that of native ores.For example, in printed circuit boards, the metals they contain include copper, gold, aluminum, nickel, lead, etc. Some circuit boards also contain rare metals. Statistical data indicate that the gold content in one ton of waste circuit boards can reach hundreds of grams.
So how do we analyze which precious metal components are contained in old circuit boards?
Common methods for analyzing precious metals generally include: 1. Dry analysis, such as fire assay; 2. Wet analysis, including spectrophotometry, atomic absorption, gas chromatography, liquid chromatography, etc.
[Dongguan Hongzheng Testing Technology Co., Ltd.] (Nationally recognized third-party testing institution), specializes in testing and analyzing various precious metal contents during waste metal recycling, including elements such as gold, silver, copper, iron, aluminum, palladium, lead, zinc, nickel, etc., as well as component content testing in decorative materials for toys and jewelry. The testing adopts national standard methods (fire assay and AAS) to analyze precious metal content and uses electrolysis to test copper content, ensuring accuracy and speed.
Testing scope: 1. Wastewater, waste residue, plated parts, gold-absorbing resin, palladium chloride, gold salts, silver salts containing gold, silver, palladium, platinum, rhodium. 2. High-price acquisition: waste materials from gold-plated optoelectronic components, gold-plated optoelectronic waste. 3. Silver-plated LED brackets, discarded LED chips, gold wire, gold line beads, sputtered precious metal target waste. 4. Recycled waste ICs, thick film circuits, integrated circuit boards, memory sticks, CPUs. 5. PUB gold-plated boards, edge scraps, waste gold solution, palladium activation liquid, anode mud, fixing liquid, waste film. 6. Ceramic glass gold paper, waste gold paste, gold repair solution, gold polishing cloth, etc. 7. Catalysts containing palladium, platinum, rhodium, palladium carbon. 8. Electronic component factories: capacitors, resistors, inductors, waste silver paste, silver-palladium paste, encapsulation materials, electronic legs. 9. Precision hardware, copper-plated gold, stainless steel gold-plated edge scraps, gold wire, gold needles, header pins. 10. Jewelry factories: polishing powder, water slag, hanging tools residue. 11. Electronics factories: gold-plated parts, mobile phone boards, SIM cards, copper, nickel-plated gold, palladium materials, silver polishing cloth, silver welding rods, silver welding points, waste tin slag.
Testing elements: Gold (Au), Silver (Ag), Copper (Cu), Palladium (Pd), Platinum (Pt), Rhodium (Rh), Iridium (Ir), Ruthenium (Ru), Osmium (Os), Chromium (Cr), Nickel (Ni), Carbon (C), Lead (Pb), Tungsten (W), Lithium (Li), Sulfur (S), Zinc (Zn), Tin (Sn), Sodium (Na), Molybdenum (Mo), Potassium (K), Niobium (Nb), Vanadium (V), Arsenic (As), Tantalum (Ta), Cadmium (Cd), Manganese (Mn), Antimony (Sb), Zirconium (Zr), Calcium (Ca), Titanium (Ti), Bismuth (Bi), Beryllium (Be), Magnesium (Mg), Aluminum (Al), Iron (Fe), Cobalt (Co), Silicon (Si), etc.
Import and export testing of precious metals, ferrous metals, non-ferrous metals, and unique stone: Hongzheng Laboratory Zhuo Gong 18565044686-18178727378.
Precious Metal Testing Process
(For precious metals, metal materials, and chemical products testing and analysis, please contact laboratory Zhuo Gong 18178727378)
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Dongguan Hongzheng Testing is a third-party testing institution that integrates a team of technical talents from universities.
The company is guided by science and fairness, based on the construction of a high-tech team, and aims to provide high-quality and efficient services in testing, measurement, certification, and training.
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