Surface state and colorimetry—is it possible to assay gold with a smartphone?

IF 2.1 4区工程技术 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Gold Bulletin Pub Date : 2025-04-01 DOI:10.1007/s13404-025-00360-2

Arnaud Manas

引用次数: 0

Abstract

Identifying ternary gold alloys by their mere colors appears to be problematic. Surface state induces multiple reflections and creates mixtures of structural colors. Two models stochastic backward raytracing (SBR) and finite asymmetrical dihedral facets (FADF) are explored to compute the color of a given surface state. Assaying gold by its color without a touchstone seems hopeless but using colorimetric microscopy and variable magnification could be a way forward.

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表面状态和比色法——有可能用智能手机测定黄金吗？

仅凭颜色来鉴别三元金合金似乎是有问题的。表面状态诱导多重反射并产生结构颜色的混合。探讨了随机反向光线追踪（SBR）和有限不对称二面体（FADF）两种模型来计算给定表面状态的颜色。在没有试金石的情况下通过颜色来分析黄金似乎是没有希望的，但使用比色显微镜和可变放大率可能是一个前进的方向。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Gold Bulletin Chemistry-Inorganic Chemistry

CiteScore

3.70

自引率

4.50%

发文量

期刊介绍： Gold Bulletin is the premier international peer reviewed journal on the latest science, technology and applications of gold. It includes papers on the latest research advances, state-of-the-art reviews, conference reports, book reviews and highlights of patents and scientific literature. Gold Bulletin does not publish manuscripts covering the snthesis of Gold nanoparticles in the presence of plant extracts or other nature-derived extracts. Gold Bulletin has been published over 40 years as a multidisciplinary journal read by chemists, physicists, engineers, metallurgists, materials scientists, biotechnologists, surface scientists, and nanotechnologists amongst others, both within industry and academia. Gold Bulletin is published in Association with the World Gold Council.