原子吸收和原子荧光光谱分析

本文是《分析试验室》期刊定期评述中关于原子吸收光谱(AAS)及原子荧光光谱(AFS)分析的第11篇综述文章. 文中对2004年12月～2007年4月期间我国在AAS/AFS领域所取得的主要进展进行评述. 内容包括概述、仪器装置与数据处理、火焰原子吸收光谱法、电热原子吸收光谱法、化学蒸气发生技术以及原子荧光光谱法等. 收集文献670篇.     

原子吸收和原子荧光光谱分析

本文是《分析试验室》期刊定期评述中关于原子吸收光谱法 ( AAS)及原子荧光光谱法 ( AFS)分析的第 8篇综述文章。文中对 1 999年～ 2 0 0 0年 1 1月期间我国在 AAS/AFS领域所取得的主要进展进行评述。内容包括 :概述、仪器装置与数据处理、火焰原子吸收光谱法、电热原子吸收光谱法、化学蒸气发生技术以及原子荧光光谱法。共收集文献 2 96篇。     

光温控制石墨炉原子吸收法测定人血清和人发中Se的含量

用光温控制石墨炉原子吸收法测定人血清和人发中Ｓｅ的含量，是一种精确、灵敏、快速的分析方法，可供科研人员和临床医生参考。     

原子吸收,原子荧光和火焰光谱分析

本文根据1988～1990年国内主要分析刊物所发表的文章,以及第三届北京分析测试学术报告会及展览会(BCEIA)、中国化学会第三届原子光谱会的主要论文,对我国原子吸收、原子荧光和火焰光谱分析的进展进行了评述,对于国外有关的重要文章也简单地加以介绍。     

原子吸收及原子荧光光谱分析

本文是《分析试验室》期刊定期评述中关于原子吸收光谱 (AAS)及原子荧光光谱 (AFS)分析的第 9篇综述文章。文中对 2 0 0 0年 12月～ 2 0 0 2年 11月期间我国在AAS AFS领域所取得的主要进展进行评述。内容包括概述、仪器装置、火焰原子吸收光谱法、电热原子吸收光谱法、化学蒸气发生技术以及原子荧光光谱法等。收集文献 35 8篇。     

Atomic Absorption Spectrophotometric Determination of Selenium

An atomic absorption method has been developed for the determination of selenium in synthetic mixtures of geological samples. Thiourea and n-butylamine are added as a matrix modifier for the precise and accurate determination.     

原子吸收、原子荧光和火焰光谱分析

本文主要根据1991～1993年第一季度国内重要分析刊物所发表的文章以及在此期间重要全国性会议的主要论文,对我国原子吸收光谱法,原子荧光光谱法以及火焰发射光谱分析法的进展作一综述。文中共收集文献692篇。     

原子吸收原子荧光和火焰光谱分析

原子吸收原子荧光和火焰光谱分析何华＊１９５８年中山大学物理系毕业，现任中国广州分析测试中心研究员。中国仪器仪表学会分析仪器学会理事。《分析测试学报》、《光谱学与光谱分析》、《分析仪器》以及《分析测试仪器通讯》等期刊编委。多年来主要从事原子光谱分析新...     

Determination of rhodium: Since the origins until today Atomic absorption spectrometry

Rhodium is present at about 0.001 ppm in the earths crust. Rhodium metal is known for its stability in corrosive environments, physical beauty and unique physical and chemical properties. Recent interest in the medical and industrial significance of platinum and to a lesser extent palladium and rhodium has been accompanied by an increasing interest in their determination at low levels.Platinum group elements (PGEs: Pt, Pd, Rh, Ru, Ir and Os) play a decisive role in the performance of catalytic converters, world-wide applied in vehicles and in some household utensils, to reduce the emission of gaseous pollutants, such as carbon monoxide, nitrogen oxides and hydrocarbons. Since then, approximately 73% of the world production of rhodium is consumed in the production of autocatalyst. However, the hot exhaust gases flowing through the converter cause abrasion of these units, leading to the emission of these elements to the environment. The concentration level of rhodium (also platinum and palladium) is still very low in the nature; accordingly, their determination in environmental samples specially appears to be a challenging task for analytical chemists. In recent years, the development of analytical methods for the determination of rhodium has increased.The aim of the present review is to evaluate the utility of atomic absorption spectrometry, applied for the quantification of rhodium in different materials, such as environmental, biological, metallurgical and geological samples.     

Determination of thallium by furnace atomic absorption spectrometry

The analytical conditions for the determination of thallium by graphite furnace atomic absorption spectrometry were studied and optimized using the peak-height mode. The charring-atomization curves for thallium from different atomization surfaces were constructed and the optimum charring and atomization conditions were established. These atomization surfaces included pyrolytic graphite-, tantalum-, zirconium- and tungsten-coated graphite tubes. The effects of different inorganic acids on the absorbance of thallium from different surfaces were studied. Using tungsten carbide-coated tubes, the interference effects due to hydrochloric and perchloric acids were eliminated. The matrix modification technique was also investigated for increasing the maximum permissible charring temperature for thallium. The matrix modifiers used included tungsten, zirconium, nickel and tantalum. The effect of adding these modifiers were studied in the presence of different acids. Tungsten increased the maximum permissible charring temperature from 400 to 1000 °C.     

原子吸收分光光度计用于分子吸收分析测定磷的研究

应用钙元素空心阴极灯中钙元素的４２２．７ｎｍ谱线和原子吸收分光光度计，对磷钒钼黄体系进行了研究，并对生铁样品中磷的含量进行了测定，获得满意的结果。     

原子吸收光谱分析

本文是《分析实验室》期刊定期评述中原子吸收光谱（ＡＡＳ）法的第七篇编述文章。本文对１９９７年至１９９８年期间我国在ＡＡＳ领域所取得的主要进展作了简要的评述。内容包括：概述,仪器与装置,火焰原子吸收光谱法（ＦＡＡＳ）,石墨炉原子吸收光谱法（ＧＦＡＡＳ）、化学蒸气发生技术,共收集文献３４７篇。     

固体热解塞曼原子吸收光谱法在毛发痕量汞分析中的应用

建立了一种采用固体热解塞曼原子吸收光谱快速测定毛发中痕量汞的方法,样品不需要经过消解即可直接测定。在优化的实验条件下．方法的相对标准偏差为3．9％(峰面积)和7．2％(峰高),检出限为26ng／g(3σ),回收率为94％～103％。使用标准参考物质进行对照分析和通过与ICP—MS分析结果进行比较,结果令人满意。应用本法通过对实验动物样本的检测表明,动物毛发中汞的含量与其体内受汞毒害程度存在一定的相关性。     

Selenium Determination in Serum by Graphite Furnace Atomic Absorption Spectrometry

Selenium concentration in serum has been proposed as the most valuable indicator of human selenium status. In this work, the concentration of selenium in serum is measured by GFAAS using longitudinal Zeeman-effect background correction, a highly sensitive technique that can be used to determine selenium at sub-ppb level. Standard reference materials are analyzed to verify the accuracy and precision of this technique. The direct method proposed in this study is used for the determination of selenium in human serum collected from healthy people of 19–25 years and women of 21–34 years in the First trimester of pregnancy. The method developed in this study, which can quickly and accurately measure serum selenium, is suitable for applications in clinical diagnosis or biological monitoring.     

State of Development of Atomic Absorption Spectrometry [New analytical methods (1)]

Atomic absorption spectrometry has developed extremely rapidly in recent years, and is now used in many analytical laboratories. The purpose of this progress report is to show the present position and to examine critically the possibilities and limitations of atomic absorption methods.     

间接原子吸收光谱法测定啤酒中痕量硫化物的研究

用Ｃｄ＾２＋沉淀啤酒中的痕量硫化物,再以十二烷基苯磺酸钠泡沫浮选富集ＣｄＳ、用火焰原子吸收光谱法测定ＣｄＳ中的镉,从而测定啤酒中硫化物的含量。对沉淀浮选及ＡＡＳ法的条件和方法进行了研究。该方法灵敏度高,选择性和重现性均较好。能成功地测定啤酒中痕量硫化物。     

原子吸收光谱法间接测定钢铁中铌

在研究铌对原子吸收光谱法测定镍的干扰效应基础上，建立了间接测定钢铁中铌的分析方法，该法测定铌的特征浓度为０．００１２μｇ／ｍｌ／１％，直线浓度范围为０－２．０μｇ／ｍｌ，钢铁标样分析表明该法准确度，精度度均好，本文通过Ｘ射线分析及镍原子在火焰中的分布规律研究，对铌的增感机理也进行了探讨。     

Atomic absorption spectrometric determination of trace tellurium after hydride trapping on platinum-coated tungsten coil

In this work, a sensitive and simple method for the determination of tellurium was developed by hyphenation of electrically heated quartz tube atomic absorption spectrometry and tellurium hydride trapping on platinum-coated tungsten coil. With a mixture of Ar and H₂, tellurium hydride was transported to tungsten coil for trapping at 390 °C and releasing at 1200 °C. A limit of detection (LOD, 3σ) of 0.08 ng mL^{− 1} was obtained with 1 min trapping (1.5 mL sampling volume), and enhancement factor was 28 compared to conventional hydride generation atomic absorption spectrometry. The LOD was better or at least comparable to literature levels involving on-line trapping and some other sophisticated instrumental method such as graphite furnace atomic absorption spectrometry (GF-AAS) and inductively coupled plasma mass spectrometry (ICP-MS), and it can be further lowered down to 0.03 ng mL^{− 1} by increasing the trapping time to 4 min. The platinum coating was stable for 300 firings without sensitivity loss. Interference and its alleviation were studied in detail. The proposed method was applied to the determination of tellurium in several geological standard reference materials, and the results were found in good agreement with the certified values.     

原子吸收光谱法在烟草行业中的应用进展

对1961～2011年间3种类型的原子吸收光谱法,包括火焰原子吸收光谱法、石墨炉原子吸收光谱法和蒸气发生原子吸收光谱法在烟草行业中的应用进行了综述(引用文献63篇)。