Development of Absolute Analysis System by Atomic Emission Spectrometry

原子发射光谱绝对分析系统的研制

• 批准号: 60470035
• 负责人: FUWA Keiichiro
• 金额: $ 3.01万
• 依托单位: National Institute for Environmental Studies (1986)The University of Tokyo (1985)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (B)
• 财政年份: 1985
• 资助国家: 日本
• 起止时间: 1985 至 1986
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-60470035/
• 关键词: Atomic Emission Spectrometry; Inductively Coupled Argon Plasma; Absolute Analysis System; One-Element Standardization; 発光強度; 一元素標準化; 多元素分析

The aim of the present study is to develop a new analytical method for multi-element determination without use of analytical standard solutions, where induct-tively coupled plasma atomic emission spectrometry (ICP-AES) has been used for an analytical tool. Recently many instrumental analytical methods have been developed, and ICP-AES is one of such methods, which has capabilities of high sensitivity, and simultaneous or rapid multielement analysis. However, when the determination of elements or compounds is performed by instrumental methods, the standard solutions are required in order to standardize the responce signals corresponding to the analyte concentrations. That is, the instrumental methods are the relative analysis technique. In electrochemical analysis, some of the methods have been established as "absolute analysis technique", where the standard solutions are not necessary. Even so, their applicability to practical analysis is not wide. Therefore, some fundamental studies ha … More ve been carried out in the present research project to realize the absolute analysis by ICP-AES.First, the emission spectra of the elements were observed, and the emission intensity of each element at specific wavelength was memorized in a computor as the reference emission intensity. Next, the emission intensities of the analyte elements in the sample solution were measured, and then the intensity ratios of the reference and analyte emission intensities were calculated to estimate the analyte concentrations. If there are no variations of the measurement system, the absolute analysis can be successfully performed based on the principle mentioned above. Practically, however, the variations of the plasma source, detectors, amplifiers and so forth occur, and so some correction of the measurement system should be made. The correction with a standard optical source is effective, but such a standard light source is not available. Thus one-element standardization method using the one-element standard solution (e.g., iron) has been developed, which allows to normalize the reference emission intensities memorized in the computor. Less

本研究的目的是建立一种不使用分析标准溶液，以电感耦合等离子体原子发射光谱法（ICP-AES）为分析工具的多元素分析新方法。近年来发展了多种仪器分析方法，ICP-AES法就是其中之一，具有灵敏度高、多元素同时或快速分析的特点。然而，当通过仪器方法进行元素或化合物的测定时，需要标准溶液以使对应于分析物浓度的响应信号标准化。也就是说，仪器方法是相对分析技术。在电化学分析中，有些方法已被确立为“绝对分析技术”，其中不需要标准溶液。即便如此，它们对实际分析的适用性并不广泛。因此，一些基础性的研究， ...更多信息 本研究采用ICP-AES法实现了对稀土元素的绝对分析，首先观测了各元素的发射光谱，并将各元素在特定波长处的发射强度存储在计算机中作为参考发射强度。接着，测量样品溶液中分析物元素的发射强度，然后计算参考和分析物发射强度的强度比以估计分析物浓度。如果测量系统没有变化，则可以基于上述原理成功地进行绝对分析。然而，实际上，等离子体源、检测器、放大器等的变化发生，并且因此应当对测量系统进行一些校正。用标准光源进行校正是有效的，但是这样的标准光源是不可用的。因此，使用单元素标准溶液的单元素标准化方法（例如，铁），其允许归一化存储在计算机中的参考发射强度。少

项目成果

原口鉱き: "ICP発光分析法の基礎と応用" 講談社サイエンティフィク, 301 (1986)

原口峰：“ICP发射光谱法的基础和应用”讲谈社科学，301（1986）

Hiroki HARAGUCHI;Satoru OZAWA;Keiichiro FUWA: Chemistry Letters.

原口宏树；小泽悟；不和庆一郎：化学快报。

Hiroki HARAGUCHI;Satoru OZAWA;Keiichiro FUWA: Analytical Chemistry.

原口宏树；小泽悟；布和庆一郎：分析化学。

原口紘き,小沢理,不破敬一郎: プラズマスペクトロスコピー. 7. (1987)

原口宏树、小泽修、不破敬一郎：等离子体光谱学 7. (1987)。

Hiroki HARAGUCHI, Satoru OZAWA, and Keiichiro FUWA: "A Possibility of Absolute Analysis in Spectrochemical Analysis Examined by Inductively Coupled Plasma Atomic Emission Spectrometry" Chemistry Letters.

Hiroki HARAGUCHI、Satoru OZAWA 和 Keiichiro FUWA：“通过电感耦合等离子体原子发射光谱法检验光谱化学分析中绝对分析的可能性”化学快报。