Precious Metals Gemology

Precious Metals Testing

企业购买、出售或处理refined gold, silver or platinum, find Bruker’s fast and accurate testing tools help run an efficient and profitable operation. Bruker’s precious metals testers can make sure that every penny is available out of every transaction.

Precious Metals Testing

Non-destructive Analysis of Valuable Objects and Jewelry Made of Gold, Platinum and Silver

X射线荧光(XRF)为测试珠宝,文化遗产和其他由黄金,铂金或银制成的有价值的物体提供了一种无损的手段。便携式XRF(PXRF),有时称为XRF“ Gun”或Handheld XRF,可从任何位置提供组成和纯度分析。桌面Micro-XRF可以详细提供图层分析。在下面探索布鲁克(Bruker)在XRF分析专家,回收商,炼油厂和散装珠宝专业人士的贵金属分析方面的选择。

Gold Karat Assay

快速贵金属分析通过便携式XRF

S1 TITANandCTXare portable jewelry testers that provide accurate and repeatable karat hallmarking for gold jewelry. The karat is a measure of the purity of gold, with 24 karats being pure gold. Spelled carat in UK English, this fractional measure of gold is extremely important and has been adopted as an official measure in US law. For example, 18 karat gold is 18 parts gold and 6 parts another metal (18+6 = 24). Bruker's elemental analyzers convert the elemental percentages of gold into a karat measurement.

Bruker黄金珠宝测试仪在每样品的2-5秒内提供金色浓度数据和完整的合金化学,并且测试将在没有对样品的任何损坏或改变的情况下实现。完全无损的分析与十分之一的消防测定法中的准确性相结合,使得对黄金和行业中许多企业进行测试的黄金首饰。用于黄金分析的便携式XRF的一些优势是:

  • 快速测量时间范围为2到15秒

  • 屏幕上的结果以百分比(%),KARAT(KT)或PPM的输出可用

  • Complete alloy composition from simultaneous multi-element analysis

  • Light-weight and easy-to-use instrument that does not require a highly-skilled operator

  • 可下载的结果,用于保存,报告生成和趋势分析

珠宝层和涂料

珠宝涂料和Micro-XRF的层分析

涂料最常用于珠宝,以通过涂上铜或银珠宝涂上一层纯金来改善美学。M1 MISTRAL,Micro Spot XRF是一种快速且完全无损的方法,用于质量控制装饰性金属珠宝涂料。M1 MISTRAL可以准确分析金,菱形或钯涂层,以确保正确的厚度和涂料组成。除了涂层厚度分析外,M1 MISTRALcan also quickly test the composition and gold karat value of the jewelry and other precious metal items.

Gold Coating is used to deposit a thin layer of pure gold onto the surface of another metal, which is most often copper or silver, by either chemical or electro-chemical plating. It is generally used on low-cost jewelry because it is inexpensive and easy to apply. Thin gold plating lacks durability and can discolor if the jewelry is subject to only normal wear. Most gold plated jewelry is only one micron thick and can be easily analyzed with theM1 MISTRAL

Physical vapor deposition (PVD) is used to vaporize gold in a vacuum chamber and deposit it on the piece of jewelry. When PVD is utilized with titanium nitride, a very hard material, it provides an extremely durable coating of gold, which is often used higher-priced jewelry – especially watches.

Rhodium是另一种常用的珠宝涂料,是银色的白色和非常硬的贵金属,用于防止表面免受划痕。它还具有很好的反射性​​白色外观。它最常用于白金首饰,但也用于银和其他材料。必威手机客户端

银分析

用便携式XRF变得轻松的银分析

S1 TITANandCTX提供便携式和健壮的平台,用于分析银。纯银(Ag),称为细银或999.5细度,太柔软了,无法用于珠宝。但是,它可以用于许多其他应用中,例如电气组件,喷气发动机的轴承,甲醛和氧化乙烷等化学物质的形成等等。通常,对于珠宝,银与另一种金属(例如铜(CU))合金提供强度。纯银(AG)是银珠宝的世界标准,含有92.5%的银,通常含有7.5%的铜。便携式XRF的示例应用程序包括:

  • Silver jewelry manufacturers can verify the purity of the silver they purchase to make jewelry as well as monitor their own process in alloying pure silver.

  • 珠宝经销商可以在购买硬币,珠宝或“纯”银之前当场确定白银纯度

  • 回收商可以识别电池,电池和催化剂中的银含量

  • Museums can authenticate and provenance photographs based on silver content (as well as other elements) of the paper

  • Silver content in artifacts can help determine provenance

白金组元素

Platinum group elements valuation with XRF

在购买,销售或回收铂金属金属(PGMS) - 铂(PT),钯(PD)和若iu愧时,重要的是要快速,有效,可靠地确定纯度。布鲁克S1 TITANorCTX可以提供充分利用当今市场所需的信心和速度。仅在几秒钟内就可以确定铂和其他贵金属的纯度和价值:

  • 实验室质量由紧凑的电池供电仪器产生

  • No hazardous waste, chemicals, or consumables

  • 精确测量重要的金属含量,例如93%至95%的铂

  • Excellent correlation to lab results, without the high cost of sending samples to an outside lab

  • 除了PGMS-CERIUM(CE),Lanthanum(La),Iron(Fe),Nickel(Ni)和铜(Cu),锌(Zn),锌(ZR),锆(ZR),Barium(ba),Barium(ba),Barium(ba),Barium(ba),除了PGMS-CERIUM(CE),Lanthanum(la),铁(Fe),镍(ni),镍(ni),镍(ni),镍(BA),碳(BA),碳(BA),稀有(BA),osmium(OS)和铅(PB)