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石脑油中微量杂质的 ICP 分析检测

石脑油通常作为汽轮机的燃料。如果石脑油中的杂质元素含量过高,将会缩短汽轮机的使用寿命。本文采用水平观测ICP 建立了对石脑油中微量杂质的分析方法。

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湖南沅水流域战国时期楚墓出土古代玻璃器的成分分析

采用激光剥蚀电感耦合等离子体发射光谱技术分析了湖南沅水流域楚墓出土的11件玻璃璧和2件蜻蜓眼珠的化学成分,并对化学成分进行了多元统计分析。结果表明:这些玻璃器都属于铅钡硅系玻璃,是战国时期最重要的一种国产玻璃。玻璃璧的来源单一,而蜻蜓眼则为不同来源。与其它已经发表的铅钡玻璃璧的数据进行比较,显示湖南南部在战国时期可能是当时最主要的铅钡玻璃璧生产中心。同时探讨了不同颜色玻璃的呈色机理。结果表明,古代楚国工匠可能通过调整玻璃中铅钡硅含量的比例来控制玻璃的酸碱度,从而得到预期的玻璃颜色。

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等离子体发射光谱测定煤灰中杂质含量

飞灰中含有大量的金属杂质,是大气污染的主要来源,因此对飞灰的检测对环境保护就显得格外重要。本文采用ICP-OES(Prodigy Leeman Labs)对飞灰中金属杂质进行了系统分析,分析结果与NIST SRM 1633b 标准样品比较,结果非常理想。

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ICP 指纹技术应用

全谱ICP固体检测器最主要的特征是具备一次测定未知样品中所有元素,也即元素“指纹”谱图。此技术在QC及仲裁方面具有非常强大的功能。为实现“指纹”功能,要求ICP必须全波长覆盖及对应的全谱数据处理功能。本文将描述Prodigy ICP有关元素“指纹”技术的性能。

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Western technical traditions of pottery making in Tang Dynasty China

This study is based on the SEM-EDS and LA-ICP-AES analyses of a sample of twenty-nine Tang sancai sherds unearthed from the Liquanfang site, Xi’an city. The results indicate that ceramics with yellowish bodies are calcareous and those with red bodies were made of ferruginous clays.

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Determination of Trace Elements in Copper by Radially Viewed ICP

Copper is considered to be the first metal used by man and has been mined for more than 10,000 years. Since copper is a soft, malleable metal, early civilizations learned to fashion tools, containers, ornaments and weapons from it. Once it was discovered that the addition of a small amount of tin to molten copper produced an alloy that was harder than copper, the Bronze Age had begun.

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Determination of the Halogen Elements in the Deep UV Region of the Spectrum by ICP

There are many applications where the ability to measure the halogen elements, at the same time as the metallic elements, is desirable. A few of these include the measurements of Cl and Br in refinery process fluids, the measurement of Cl and Br in waste oils and the determination of Cl-, Br- and I- in food supplements and drinking water.

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Determination of Alloying Elements in High Carbon Steel by Radially Viewed ICP

Carbon steels are by far the most frequently used steels. More than 85% of the steel produced in the US is carbon steel. These steels are classified by their carbon content. Table 1 shows the classification of carbon steels and some typical uses.

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Chemical and lead isotope analysis from the Warring States Period

In the context of the present study, we have conducted chemical