食品中微量元素锗的测定方法概述

综述了国内近年来对食品中微量元素锗的测定方法。包括：分光光度法、荧光分析法、原子吸收分光光度法，电感耦合等离子体发射光谱法，极谱法和色谱法。     

双波长分光光度法的研究进展

文中对双波长分光光度法在近十年来的研究进展作了评述。内容分为4部分：①常规双波长分光光度法；②标准加入法-双波长分光光度法；③计算双波长分光光度法及④双峰双波长分光光度法，引述文献23篇。     

天然药物及制剂中微量元素硒的测定方法概况

硒是人体必需的微量元素，具有抗肿瘤、防衰老、防辐射和增强机体免疫力等多种功能。本文就国内近年来对天然药物及其制剂中微量元素硒的分析方法概况作一综述，包括：原子吸收分光光度法、荧光分光光度法、电感耦合等离了光谱法、催化分光光度法、分光光度法、化学发光淬灭法、极谱法、中子活化分析法和色谱法等。     

中药及天然产物中微量元素锗的分析方法概况

综述了近年来采用分光光度法、荧光分光光度法、原子吸收分光光度法、电感耦合等离子体发射光谱法、极谱法、化学发光淬灭法测定中药和天然产物中微量元素锗的概况。     

元素镁的分析方法及其进展

就国内近年来对中药,食品,血清等样品中元素镁的分析方法研究进展进行了综述,主要有原子吸收分光光度法,等离子体发射光谱法,荧光分光光度法,分光光度法和电化学方法。     

K系数—多波长最小一乘回归分光光度法同时测定三组分的研究

将双波长Ｋ系分光光度法和多波长线性回归分光光度法相结合，并采用最小一乘法准则计算回归系数，提出了一种同时测定三组分的新方法，即Ｋ系数－多波长最小一乘回归分光光度法。     

紫外法与红外法测定石油类的比对研究

将新近实施用于测定地表水中石油类的紫外分光光度法与红外分光光度法的方法特性参数以及应用于各类实际水样测定进行比对研究。结果表明,两种方法的实际检出限均为0.004mg/L、测定下限均为0.016mg/L,加标回收样品紫外法测定结果相对标准偏差为4.2%～6.6%,加标回收率为82.0%～96.0%;红外法相对标准偏差为3.8%～5.5%,加标回收率为82.0%～97.0%,精密度和准确度等性能指标相近,在使用不同萃取方式应用于各种不同来源和组成水体的实际样品测定时,同种方法所得结果相对偏差均小于10%,但紫外分光光度法所得结果与红外分光光度法最大相对偏差达到了49.0%,并且红外分光光度法测定结果较之紫外分光光度法与样品理论浓度值更为接近,表明紫外分光光度法对较复杂水体石油类样品的测定存在局限性。     

锗的分析概况

本文是关于锗分析方法的综述，共分锗的分析和分离方法，锗的定量法和有机锗Ｇｅ－１３２产量质量控制法研究现状三大部分。锗的分析和分离方法中，介绍了锗的分析方法及分类，锗样品前处理、分离与预浓集的原理和方法，并便 出了有参考价值的图表，锗的定量法中介绍了重量法、容量法、分光光度法、荧光法和发光分析法原子吸收分光光度法、原子发射光法、电化学分析法。每一分析法中又介绍了测定法研究及应用实例。在测定法研究及应     

低吸光度差示分光光度法测定油品中的铁

将一新的低吸光度差示分光光度法用于油品中铁的测定并与普通分光光度法测定结果的精密度和准确度进行了比较。结果表明，对于低吸光度样品的测定，该法较普通分光光度法准确。同时，该法克服了以前低吸光度差示分光光度法中差示吸光度与样品含量不成线性关系的不足。     

食品分析中微量元素铁,锰,锌,铜快速分光光度测定法的研究

铁、锰、锌、铜的快速分析常用原子吸收光度法、发射光谱法、等离子体法、电位溶出法等。本文则研究了快速分光光度法，提出了新的分析方法及若干试验研究结果。     

微量元素钴的分析方法概况

综述了国内近年来微量元素钴的分析方法研究进展,包括分光光度法,原子吸收分光光度法,电感耦合等离子体发射光谱,和等离子体质谱法。     

单一稀土元素检测方法的新近进展

本文对1999～2004年间有关单一稀土元素检测方法的研究进展进行了综述,内容包括原子吸收/原子荧光光谱法,荧光光度法,X-射线荧光光谱法,中子活化分析,电感耦合等离子体原子发射光谱法、电感耦合等离子体质谱法以及其干扰效应、进样技术和分析应用.引用文献127篇.     

电感耦合等离子体质谱法痕量成分定值技术研究进展

综述了近年来国内外电感耦合等离子体质谱法痕量成分定值技术研究的新进展,包括电感耦合等离子体质谱的仪器种类、技术特性、应用范围和发展现状。论述了同位素稀释电感耦合等离子体质谱研究的发展状况以及在化学计量研究领域的重要地位。     

电感耦合等离子体-质谱联用及其在环境和生物样品中铂族金属分析的应用进展

本文简述了电感耦合等离子体-质谱联用(LCP-MS)技术和仪器的发展,分析了环境和生物样品中铂族金属分析的主要困难,综述了90年代以来国内外ICP-MS技术在环境和生物样品中铂族金属分析的最新进展,引用文献47篇.     

Determination of selenium and cadmium dopants in nanocomposites based on zinc and indium oxides by high resolution continuous source electrothermal atomic absorption spectrometry and inductively coupled plasma mass spectrometry

An approach is proposed to the determination of selenium and cadmium dopants in new nanocomposites based on zinc and indium oxides. The approach is based on a combination of highly efficient high resolution continuous source electrothermal atomic absorption spectrometry (ETAAS) for the analysis of suspensions and inductively coupled plasma mass spectrometry for the analysis of solutions. A procedure is developed for the determination of Se and Cd dopants and matrix components based on Zn and In in nanocomposite solutions by inductively coupled plasma mass spectrometry. Stabilizing agents for the preparation of suspensions are studied for the ETAAS analysis of powders without their decomposition. The results of determination of CdSe dopants by high resolution ETAAS are validated by inductively coupled plasma mass spectrometry.     

Polynomial mass bias functions for the internal standardization of isotope ratio measurements by multi-collector inductively coupled plasma mass spectrometry

The development and application of a calibration strategy for routine isotope ratio analysis by multi-collector inductively coupled plasma mass spectrometry (ICP-MS) is described and assessed. Internal standardization was used to account for the mass dependant determinate error (mass bias). The general solution for polynomial isotope ratio mass bias functions for use with internal standardization and isotope ratio measurements by multi-collector inductively coupled plasma mass spectrometry was derived. The resulting linear isotope ratio mass bias function was demonstrated to be mathematically consistent and experimentally realistic for the analysis of acidified aqueous solutions of analyte and internal standard elements (clean solutions) by multi-collector inductively coupled plasma mass spectrometry.     

Atomic emission of anhydrous hydrogen bromide: Spectra from 200 to 900 nm by sealed inductively coupled plasma-atomic emission spectroscopy

Anhydrous hydrogen bromide, at concentrations of up to 25%, has been introduced into a sealed inductively coupled plasma system for spectrochemical analysis. The emission spectra of 15% anhydrous hydrogen bromide is reported over the spectral range of 200 to 900 nm from an enclosed inductively coupled plasma discharge operated at atmospheric pressure and 1.1 kW. More than 140 atomic Br I lines are identified and reported along with their relative intensities. Where possible, molecular band assignments of Br₂ are made. Impurities identified qualitatively include Fe, Sn, C, and Ni. The presence of these impurities were verified by gas phase hydrolysis and subsequent inductively coupled plasma-mass spectrometry analysis.     

Identification of Oil Pollution Sources by a Set of Modern Instrumental Methods

Source of contamination of the soil and water with oil can be exactly identified by a set of instrumental methods such as atomic absorption spectrometry, inductively coupled plasma mass spectrometry, atomic emission spectroscopy, X-ray fluorescence analysis, and inductively coupled plasma emission spectrometry.     

Application of laser ablation ICP-MS to elemental analysis of glasses

A technique involving the coupling of laser ablation and inductively coupled plasma mass spectrometer has been used for semi-quantitative analysis of glasses without sample dissolution. The characteristic features of this technique is low detection limit and accuracy between a few % up to 20%. An NIST glass standard (SRM 612) was dissolved and then analysed by ICP-MS in semi-quantitative mode. The results were in close agreement with the certified values for elements such as Mn, Sr, Y, Ti...Abbreviations AA atomic absorption - ICP-OES inductively coupled plasma optical emission spectroscopy - ICP-MS inductively coupled plasma mass spectrometry - LA laser ablation     

Using of Fractional Separation for the Analysis of MoO<Subscript>3</Subscript> by Atomic Emission Spectrometry with Inductively Coupled Plasma and Electrothermal Vaporization

The introduction of various forms of molybdenum into an inductively coupled plasma was studied in the vaporization of solutions from a graphite tube. A temperature program is selected that enables the separated vaporization of analytes and molybdenum (matrix) for atomic emission spectrometry with inductively coupled plasma and electrothermal vapoization (ETV–ICP–AES) analysis. The limits of detection for analytes in the ETV–ICP–AES analysis of molybdenum trioxide are evaluated using the fractional separation of analytes and the matrix.