在应用光谱检查技术对锅炉压力容器管道进行检验的过程当中，常用手持式光谱仪，此类设备携带相对而言比较方便，且手持式光谱仪速度响应较快，对于压力容器的检验环境有良好的适用性。由于其采用X射线荧光光谱原理加以测量，故具有操作灵活，检验速度快，同时可支持对材料合金牌号的快速识别等核心优势。在锅炉压力容器的监督检验中被广泛应用。

Skyrocketing costs of metal coating materials such as zinc have driven the need for improved process control. Anything other than the optimum coating thickness is unacceptable either from a quality control or cost control standpoint. The time has come for a fast, nondestructive, and accurate method of measuring coating thickness and coating weight, and analyzing plating bath solution. Handheld x-ray fluorescence (XRF) offers general metal finishers and others the advantage of at line testing, eliminating the need to cut samples and spend valuable time taking the sample to a benchtop analyzer to wait for results.

The word Numismatics comes from Latin origin and means the study or collections of coins, tokens, paper money, and sometimes related objects (such as medals)1. When discussing the value of coins it is important to distinguish between the bullion value of a coin (i.e. the coin’s value based on its precious metal content) and its numismatic value. Coins with numismatic value (“numismatic coins”), are collectible coins valued for their age and rarity rather than, or in addition to their precious metal content. Numismatic coins are typically sold to and traded among collectors, who may be interested in them for their historical, cultural, or investment value. They may be purchased from wholesalers, national and local retail outlets and brokers, and certification labs.

Fire assay is an established and proven method for testing the purity of gold jewelry and other objects. Nevertheless, it is a destructive and time-consuming process requiring the use of hazardous chemicals. X-ray fluorescence has emerged as a non-destructive alternative to the fire assay method, with comparable accuracy in just minutes. XRF instrumentation is now available in portable units ideally suited for countertop use in retail environments for accurate testing of any precious metal. In a test against two different refineries using fire assay to evaluate two gold ingots from the same melt, an XRF analyzer provided results just as accurate as one refinery, and even more accurate than the second refinery. The test results provided in this article were performed using the Thermo Scientific? Niton? DXL Precious Metal Analyzer.

More than ever, highly variable compositions andvolatile prices of platinum (Pt), palladium (Pd), and rhodium (Rh) are important factors in the purchase and recycling of spent catalytic converters. In 2010, the global sales of Pt, Pd, and Rh totaled, respectively, 245, 299, and 27.2 tons. About 46% of the total Pt, 57% of the total Pd, and 77% of the total Rh were consumed by the automotive catalyst industry. That same year, 33.7 tons of Pt, 41.2 tons of Pd, and 7.3 tons of Rh were recovered from the recycling of spent catalytic converters [1], representing a total value of $3 billion at the 2010 cumulative average price of fine metals.

Fasteners are such a universal component of so many machines and assemblies used on a daily basis that we tend to take them for granted, until something goes wrong. Fasteners, particularly those used in mission-critical situations, must be designed, fabricated, inspected, and installed properly or lives can be put at risk. For this reason, it is imperative to ensure that fasteners for these critical applications are made from the precise metal alloy called for in the design specifications. This verification can be accomplished quickly, easily, and accurately using a handheld x-ray fluorescence (XRF) analyzer.

The attractiveness of aluminum, element number 13, lies within its unique properties including its light weight, high strength, excellent corrosion resistance, good formability, high electric and thermal conductivity, reflectivity, and non-toxicity. This element can easily be alloyed with other elements to enhance its properties and is widely used in the construction, automotive, aerospace, and packaging industries, among many others.

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Sulfidic corrosion of piping and equipment within the refining industry continues to be a significant cause of leaks and issues that can lead to early replacements, unplanned outages, and incidents potentially resulting in loss of property and injury to workers. Carbon steels with low-silicon (<0.10%) content can corrode at an accelerated rate when exposed to H2-free sulfidation corrosion conditions.

Lead has no known physiologically relevant role in the human body. Its presence has only been shown to be harmful. This is why, for example, many nations have switched to unleaded gasoline, thus greatly reducing the amount of lead found in the environment. And clearly, lead has no place in our drinking water.

手持式光谱仪有什么用?由于现今金属价格高涨，特别是镍(Ni)为代表的几类金属，企业要在现代废旧金属回收行业中获得收益，合金成分的精确鉴定起到至关重要的作用。尼通手持式光谱仪能够快速、精确地鉴定镍的成分，即使其含量低于1%。这款仪器可以同时加载金属分析和塑胶分析的程序，满足日益发展的废料回收业的需求。另外，对贵金属的分析也可通过这款仪器得以实现。

通常，人们根据分光系统的不同将 X 射线荧光分析法分为能量色散型 X 射线荧光分析(EDXRF)和波长色散型 X 射线荧光分析（WDXRF）。虽然 EDXRF与 WDXRF 同属于 X 射线荧光分析，但其原理及仪器结构上有很大的不同，功能和性能也有明显差异，深入了解两种类型 X 荧光光谱仪原理及结构，对于光谱仪的选型十分必要的。小编今天带大家了解一下 EDXRF 的基本原理及仪器构造。

不锈钢丝网的主要特点表现为材质准确稳定、网面平整整洁无污物、网孔均匀无变形、耐酸、耐碱、耐高温、拉力和耐磨性强。

X 射线荧光光谱仪用于考古发掘，文物及艺术品保护等领域已有五十多年的历史。但直到最近功能强大的手持式设备的开发，才使得这项非破坏性检测技术在该领域得以充分发展。由于可应用于现场的分析工作，手持荧光光谱仪在可检测的样品上也有了大的拓展。

OXSAS 软件处理Spark-DAT结果就如同处理常规的直读光谱结果：可储存、打印结果并将结果与产品标准进行比较，通过网络将结果传输到过程控制计算机。

波长色散X射线荧光仪（WD-XRF）可以 检测元素周期表中多达83种元素，测量 各种形态和性质的样品：例如固体或液体，导电材料或绝缘材料。相对于其他分析技术而言，X 射线荧光光谱分析法的优 点是分析速度快、制样简单、分析状态 稳定、精确度高，并且成份分析范围 广（从ppm级到100%含量）。

One the most important non-ferrous engineering alloys. They cover a large range of physical properties and their applications are multiple.

如果您想用直读光谱仪在数分钟内实现上述或者更多的目标，赛默飞世尔科技公司生产的ARL 4460直读光谱仪可配备Spark-DAT（火花数据采集与处理）选购项可助您实现这一愿望。

Thermo Scientific ARL 3460光谱仪为您量身定做，致力于满足铸造和金属加工企业的分析要求。 ARL 3460 Advantage新型光谱仪将成本、品质、性能和可靠性完美地结合起来，成为当今世界上最知名的直读光谱仪。

RoHS 是《电气、电子设备中限制使用某些有害物质指令》（the Restriction of the useof certain hazardous substances in electrical and electronic equipment）的英文缩写。