gold assay

简明释义

金鉴定

英英释义

例句

1.An independent gold assay can help verify the authenticity of antique jewelry.

独立的黄金分析可以帮助验证古董珠宝的真实性。

2.The jeweler performed a gold assay to determine the purity of the gold in the necklace.

珠宝商进行了一次黄金分析以确定项链中黄金的纯度。

3.Many mining companies rely on accurate gold assays to evaluate their resources.

许多矿业公司依赖准确的黄金分析来评估他们的资源。

4.Before investing, it's wise to request a gold assay from a reputable lab.

在投资之前，要求信誉良好的实验室进行一次黄金分析是明智的选择。

5.The gold assay results showed that the coin was made of 24-karat gold.

这次黄金分析的结果显示，这枚硬币是由24克拉黄金制成的。

作文

The process of determining the purity and quality of gold is known as a gold assay. This procedure is essential in various industries, particularly in jewelry making, mining, and investment. The term 'assay' itself originates from the Old French word 'assayer,' which means 'to try' or 'to test.' In the context of gold, a gold assay involves analyzing a sample of gold to ascertain its composition and value. To begin with, a gold assay can be performed using several methods, each with its own advantages and limitations. The most common methods include fire assaying, aqua regia, and X-ray fluorescence (XRF). Fire assaying is regarded as the standard method for precious metal analysis. It involves melting the gold sample at high temperatures and separating it from impurities. This method is highly accurate and is often used in laboratories to determine the exact content of gold in an ore sample. In contrast, aqua regia is a chemical method that uses a mixture of hydrochloric and nitric acids to dissolve gold. This technique is particularly useful for testing small quantities of gold and can provide quick results. However, it requires careful handling due to the hazardous nature of the chemicals involved. On the other hand, XRF is a non-destructive technique that allows for rapid analysis without the need for sample preparation. It works by emitting X-rays onto the gold sample and measuring the fluorescent X-rays emitted back, providing immediate information about the gold's composition. The importance of a gold assay cannot be overstated, especially in the context of financial transactions involving gold. Investors need to know the exact purity of the gold they are buying or selling to ensure they are receiving fair value. For instance, if someone purchases gold jewelry, they should verify its purity through a gold assay to confirm that it is indeed made of genuine gold and not a lower-quality alloy. Moreover, miners rely on gold assays to evaluate the potential profitability of their mining operations. By conducting assays on ore samples, they can identify the concentration of gold present and make informed decisions about whether to proceed with extraction. This process is crucial for maximizing profits and minimizing losses in the highly competitive mining industry. In addition to its practical applications, the concept of a gold assay also holds cultural significance. Throughout history, gold has been associated with wealth, power, and status. The ability to accurately assess the quality of gold has been a vital skill for traders and jewelers alike. In ancient civilizations, skilled assayers were highly respected for their expertise in evaluating precious metals. Today, this legacy continues as modern technology enhances the precision and efficiency of gold assays. In conclusion, understanding the process and significance of a gold assay is crucial for anyone involved in the gold market. Whether you are a jeweler, miner, or investor, knowing how to accurately assess gold's purity can lead to better decision-making and greater financial security. As technology advances, the methods for conducting gold assays will continue to evolve, providing even more reliable and efficient ways to evaluate one of humanity's most cherished metals.

确定黄金纯度和质量的过程被称为金测定。这一过程在多个行业中至关重要，尤其是在珠宝制造、采矿和投资领域。术语“测定”本身源于古法语单词“assayer”，意思是“尝试”或“测试”。在黄金的背景下，金测定涉及分析黄金样本以确定其成分和价值。首先，金测定可以通过几种方法进行，每种方法都有其优缺点。最常用的方法包括火法测定、王水法和X射线荧光（XRF）分析。火法测定被认为是贵金属分析的标准方法。它涉及在高温下熔化黄金样本并将其与杂质分离。这种方法非常准确，通常用于实验室中确定矿石样本中黄金的确切含量。相比之下，王水法是一种化学方法，使用盐酸和硝酸的混合物来溶解黄金。这种技术特别适用于测试少量黄金，并且可以提供快速结果。然而，由于所涉及化学品的危险性，它需要小心处理。另一方面，XRF是一种非破坏性技术，可以在无需样本准备的情况下进行快速分析。它通过向黄金样本发射X射线并测量回发的荧光X射线，提供关于黄金成分的即时信息。金测定的重要性不言而喻，特别是在涉及黄金的金融交易中。投资者需要知道他们购买或出售的黄金的确切纯度，以确保他们获得公平的价值。例如，如果有人购买黄金珠宝，他们应该通过金测定来验证其纯度，以确认它确实由真正的黄金制成，而不是低质量合金。此外，矿工依赖于金测定来评估其采矿操作的潜在盈利能力。通过对矿石样本进行测定，他们可以识别出黄金的浓度，并做出是否继续开采的明智决定。这个过程对于在竞争激烈的采矿行业中最大化利润和最小化损失至关重要。除了其实际应用外，金测定的概念也具有文化意义。历史上，黄金与财富、权力和地位相关联。准确评估黄金质量的能力一直是商人和珠宝商的重要技能。在古代文明中，熟练的测定师因其评估贵金属的专业知识而受到高度尊重。今天，随着现代技术的进步，金测定的精确性和效率得到了提升，这一遗产仍在延续。总之，理解金测定的过程和重要性对任何参与黄金市场的人来说都是至关重要的。无论您是珠宝商、矿工还是投资者，了解如何准确评估黄金的纯度都可以带来更好的决策和更大的财务安全。随着技术的进步，进行金测定的方法将继续发展，为评估人类最珍贵金属之一提供更可靠和高效的方式。