https://www.profiners.com/home daily 1.0 2022-09-14 https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/7dc6ecf1-c5d3-4309-bd1c-70fd29bd43f2/HP_Refine.jpg Home - Items we refine include, but are not limited to, the following: Karat Gold Jewelry; Silver Flatware; Silver Jewelry; Bench Grindings; Polishing Sweeps; Floor Sweeps; Filters/Burnables; Sink Trap Sludge; Low grade material; Gold-Filled Scrap; Karat Jewelry with stones. https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/04f0b055-cb2c-474f-bd47-1f782c0d9be9/HP_Analize.jpg Home - Items we analyze include, but are not limited to, the following: Silver, gold, palladium and platinum jewelry, precious metal drillings, sweep and pin samples. Full elemental analysis of pure metals, alloys, metallurgical additives, and deleterious elements. A Certificate of Analysis is furnished upon request. https://www.profiners.com/fire-assay-analysis daily 0.75 2023-01-03 https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/8a96a815-8732-4487-a362-711cc02f678c/IMG-2190.jpg Fire Assay Analysis - Fire Assay Analysis Fire assaying has been practiced since ancient times and has proven to be very reliable in the determination of precious metals. References to fire assaying are found in the Old Testament of the Bible and artifacts in past civilizations’ ruins. Assaying began to appear in French and English literature in the 12th century and from there spread to the rest of Europe shortly after. The substances that can be fire assayed can be ores, metallic solutions, and any material that is thought to be containing gold and silver. It uses scientific methodology, and it is a branch of analytical and inorganic chemistry. Profiners has optimized the Fire Assay method for karat gold jewelry and sterling silver. This technique of analyzing precious metals may also be applied to gold content as low as 1% to as high as 99% purity. The main factor for an accurate assay is homogeneous sampling. Jewelry samples can be tricky to analyze due to the solder that may be part of the piece. There may also be steel pins that need to be recognized and not incorporated in the testing process. Profiners prides itself on quick and accurate results using the Fire Assay method. https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/d5b611ee-c987-4d98-8467-1727e34d6b25/IMG-2199.jpg https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/fd215236-3bfd-4d97-9993-d04c2caa579b/IMG-2278.jpg https://www.profiners.com/icp-analysis daily 0.75 2023-03-02 https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/62616d5e-8ad3-427d-ab06-39cd8e5f3e00/IMG-2183.jpg ICP Analysis - ICP Analysis The principal of Inductively Coupled Plasma Atomic Emission Spectrometry is one of energizing elements in the presence of a high temperature plasma. Particles of light (photons) are emitted by each element present at specific wavelengths. The instrument separates and measures the quantity of photons emitted for the selected elements and calculates the resulting concentrations. ICP Spectrometry is renowned for the ability to determine accurately a wide array of elements in a full scale of concentrations ranging from trace amounts in parts per million (ppm) to high percentages. Profiners utilizes three ICP machines in its daily laboratory testing. Our ICP capabilities allow our customers to target elements of interest in a wide variety of sample compositions. Depending on this compositional makeup, we customize an analytical method to maximize the ICP's accuracy. Our lab would welcome your inquiries concerning your specific elemental testing requirements. Profiners will provide you with a cost-effective means to address your analytical needs. Profiners employs this latest technology to produce accurate results in a timely fashion. The following are examples of ICP testing we provide: Certification of purity for fine gold, silver, palladium, and platinum Precious metal analysis of metallic and fines Lead and cadmium testing of costume jewelry, as well as elemental analysis of plating solutions Trace analysis of karat gold, sterling silver, platinum, and palladium alloys, as well as, for alloy additives such as, Rhenium, Silicon, Phosphorous, Boron, Iridium, Gallium, and Indium Alloy testing for minor elements that include Copper, Nickel, Tin, and Zinc For as many elements as there are, there are just as many scenarios for testing requirements that are too numerous to list below. Please call us to discuss your special testing requirements for ICP analysis. https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/1e3c2859-9856-4150-b9e8-26058d7d51ec/IMG-2162.jpg https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/642a4452-6aca-4a88-964b-55f904b8c02f/ICP_hotblock.jpg https://www.profiners.com/faqs-analytical-services daily 0.75 2022-06-08 https://www.profiners.com/history daily 0.75 2022-06-08 https://www.profiners.com/committment daily 0.75 2022-09-08 https://www.profiners.com/privacy-terms daily 0.75 2022-06-28 https://www.profiners.com/industries-served daily 0.75 2022-09-08 https://www.profiners.com/metallic-refining daily 0.75 2023-03-02 https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/bcfaf61c-ed58-484e-805d-9de6a141e8d3/PXL_20210301_152808379.MP.jpg Metallic Refining - Metallic Refining To begin the purification process of scrap gold, we will melt the metal in a furnace with fluxing agents. After thoroughly mixing the molten metal, pin samples are taken for analysis which will determine the content of the precious metals contained. Karat scrap jewelry with stones? We will remove and clean the stones for return to you. This process is achieved through an acid leach that allows the stones to be removed and cleaned without damaging the stones. Refining lots that contain stones are usually completed within 48 hours. Metals are priced as follows: SILVER at the London AM Fix; GOLD, PALLADIUM and PLATINUM at the London PM Fix Comex or spot pricing is available upon request Metal is priced on the next business day once settlement is confirmed. Shipment of metal is normally done via Registered Mail or Federal Express unless other arrangements are made by the customer. Postage fees are billable to the customer. https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/55ec9b30-2ae1-4590-97e2-98edee919325/IMG-2265.jpg https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/29ac72f1-e650-41c8-be56-38dadcc532e9/IMG_20200623_105615.jpg https://www.profiners.com/faqs-refining-services daily 0.75 2022-06-08 https://www.profiners.com/sweeps-refining daily 0.75 2023-03-02 https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/b37ec698-ce98-45ce-b68e-d1abb44258f6/IMG-2254.jpg Sweeps Refining - Sweeps Refining Ship your floor/polishing sweeps, filters, sink trap sludge, rags that may contain precious metals and let the PRO's handle it. Once your material is safely burned, it then continues to the crushing system. This breaks down the material further to produce a fine powder. The material is then cooled and sifted through a 75-mesh screen to separate the fines from the metallic tailings. Magnetics are separated from the tailings prior to being sent to the melt area. Blending the fines sample is critical to ensure a homogenous sample for analyzing the material. This is achieved through a large barrel blender, as well as a smaller bottle blender for the sample. A moisture test is performed to help determine the amount of moisture in the fine’s samples. The fines samples are tested for precious metals using ICP Analytical methods. Why Use Profiners: Our Stationary and Rotary incinerators are maintained and inspected regularly to ensure efficiency. Moisture evaluation is performed on every lot to establish the correct value of the material. The lot is then tested via ICP analysis and Fire Assay numerous times on our ISO9001 calibrated balances for settlement. https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/5de69b46-45ec-4fd1-8f99-211151653dc0/IMG-2290.jpg https://images.squarespace-cdn.com/content/v1/622801c5bddeb95436b215d6/6dbf9f45-65b5-47b1-8eaa-a096b040f971/Sweeps.jpg https://www.profiners.com/contact daily 0.75 2022-09-08 https://www.profiners.com/employment daily 0.75 2023-02-08