其他

This application note introduces findings from the analyses of two illuminated manuscript leaves in the collection of the Yoshino Gypsum Art Foundation (hereafter referred to as “the Foundation”) using a HORIBA XGT-9000 X-ray Analytical Microscope. Among the Foundation’s elemental analysis investigations into the pigments used in the two leaves, this application note highlights the analysis results of the blue pigments and also the interpretation on the results. The interpretation is quoted from the Foundation’s publication.

In this application note, we prepared two small violet color stones and demonstrated the feasibility of micro-XRF for screening to distinguish a tanzanite gemstone and its imitation non-destructively.

Identification of pigments is important in the archaeological and art research fields. Some pigments were used during specific times and then were no longer used in later times. Therefore, we can estimate the period when artwork was created through identification of the pigments. Micro-XRF is an effective pre-screening analytical technique to narrow down the candidates of multiple pigments used on a painting, thanks to its non-destructive approach and imaging capability.

自古以来，不同国家和时代的刀剑铸造材料各具特色。从考古视角审视，元素分析不仅是揭示刀剑来源与制造时代的关键线索，更是鉴别文物真伪的有力证据。然而，针对如刀剑等大型样本，能在不破坏其完整性的前提下进行有效测量的分析仪器却寥寥无几。

In this application note, we compared a real pearl earring with an imitation pearl earring, and we demonstrated elemental analysis using HORIBA’s micro-XRF XGT-9000 to non-destructively evaluate and differentiate them.

在这项研究中，我们表征了黄铁矿及其周围的矿物，以确定不同的矿物相态，并从微米到纳米尺度表征了样品空间上的化学变化。使用不同的显微镜仪器进行共定位，实现对样品特征的全面分析，并对所有的图像进行精确的叠加。

用于首饰的宝石通过加热、辐射或填充裂纹等工艺来处理，可使其更加完美。我们使用XGT-9000 微区X射线荧光分析仪对Mineralab公司提供的红宝石进行了成像分析。通过透射X射线成像结果，可发现红宝石内部存在部分缺陷，而荧光X射线成像则显示出红宝石表面经过填充处理，其中包括Pb、Mg和Si等代表铅玻璃的物质。

刑侦光源多波段光源是检测荧光和非荧光痕量物证的有效工具。

在弹药和炸药中都发现了几种不同类型的残留物，它们会发出荧光。通过使用可调的刑侦光源，可以在不接触表面的情况下对物品进行观察，以查看是否存在荧光残留物。

受害者身上的瘀伤细节，例如咬痕或鞋印，可以将嫌疑人与受害者联系起来。此外，嫌疑人手掌上瘀伤的细节可以将嫌疑人与武器联系起来。

从以往的经验来看，刑侦光源主要用于增强对现场指纹的发现。使用荧光增强过程补充光源大大拓宽了可以发现现场指纹的表面类型。