离子色谱法测定酸雨中的阳离子

用离子色谱法测定酸雨中的Na^ 、NH4^ 、K^ 、Mg^2 、Ca^2 等阳离子，并同时用原子吸收分光光度法进行了对比实验。结果表明，利用离子色谱法测定阳离子，方法简便、快捷，能一次同时测定多种离子，测定结果和原子吸收法相符。     

高纯硅中痕量元素分析方法研究进展

综述了从1980-2012年间测定高纯硅中痕量元素分析方法的研究进展。高纯硅中痕量元素的主要分析方法包括红外光谱法、原子发射光谱法、原子吸收光谱法、X射线荧光光谱法、极谱法、离子探针与离子色谱法、二次离子质谱法、辉光放电质谱法、电感耦合等离子体质谱法等;并对高纯硅中痕量元素的分析方法进行了展望(引用文献59篇)。     

不同水煤浆分散剂与煤之间的相互作用规律研究 Ⅴ. 煤在分散剂水溶液中的溶出离子及其对CWS性质的影响

通过原子吸收和等离子体原子发射光谱法，研究了6种不同分散剂对14种煤溶出Ca2+、Mg2+、Fe3+(Fe2+)、Al3+、SiO32－离子的影响。结果表明，煤中溶出高价离子的数量，主要取决于分散剂与高价离子间的相互作用特征，以及矿物质的种类和数量。煤在不同分散剂水溶液中溶出高价离子的多少，并不单纯与水煤浆（CWS）的流变性或煤的成浆性具有相关性。煤中矿物质对CWS性质的影响，是多种因素综合作用的结果，溶出离子的种类和数量只是其中的重要因素之一。     

食品分析

本文对１９９２￣１９９３年间的国内食品分析进展作了僮介。内容包括光度分析（分光光度法、发光光度法、原子吸收光谱法、原子荧光光谱法、原子发射光谱法、近红外光谱法等），色谱分析（气相色谱法、液相色谱法、离子色谱法、簿层色谱法、电泳分析等）及电化学、化学计量学等，引用文献５８４篇。     

高分辨率连续光源原子吸收法和离子选择电极法测定水中氟化物的比较

目的：比较高分辨率连续光源原子吸收法（HR－CS－AAS）和离子选择电极法（ISE）测定水中氟化物。方法用离子选择电极和高分辨率连续光源原子吸收分别测定水样及进行加标回收实验,比较两者的检测限、精密度、准确度等指标。并采用配对t检验检查两种方法测定水中氟的结果是否有显著差异。结果离子选择电极检测限为0.10 mg/L; RSD为2.23％～4.32％;加标回收率为96.0％～104.0％。原子吸收法检测限为0.04 mg/L; RSD为1.7％～3.6％;加标回收率为96.5％～106.0％。离子选择电极和原子吸收法同时测定24份实际水样,测定结果进行配对t检验,结果表明,两法测定水中氟无显著差异。结论高分辨率连续光源原子吸收法可用于测定水中氟,适合大批量样品测定的特点。     

离子交换富集—原子吸收法测定废水中铜、铅、锌、铬及铁

工业废水中重金属离子的测定,一般采用比色法及极谱法,近年来也广泛采用原子吸收法。由于废水治理过程中,水样中各种重金属离子浓度差别很大,有的竟高达几十甚至几百 ppm,而有些却低于国家排放标准。因此我们提出用离子交换富集-火焰原子吸收法测定废水中微量重金属离子的方法,该法能以一个水样,同时测定5种金属离子,方法快速、准确,已用于含重金属离子废水的控制分析,结果令人满意。     

地质样品中氯的测定方法的近期进展

对地质样品中氯的测定方法,包括其样品的前处理方法在近十年中的研究进展作了综述。涉及的样品前处理方法有浸提法、碱熔融法、半熔法、水蒸气蒸馏法及高温水解法等;涉及的测定方法包括分光光度法、离子选择性电极法、离子色谱法、X射线荧光光谱法、原子吸收光谱法、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及中子活化法等。并对这方面的发展前景作了简要的展望(引用文献91篇)。     

无机固体样品中硫的测定方法的研究进展

综述了无机固体样品中硫的高温燃烧热解(包括燃烧-红外吸收法、燃烧-碘量法、燃烧-库仑滴定法、燃烧-中和滴定法和燃烧-电导法等)、湿法消解(包括硫酸钡重量法、硫酸钡比浊法、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、原子吸收光谱法和离子色谱法等)和固体样品直接分析(包括火花源原子发射光谱法、辉光放电原子发射光谱法、X射线荧光光谱法等)等3类测定方法的研究进展(引用文献117篇)。     

荧光素-酚藏花红荧光能量转移用于测定Cu2+

重金属离子能引起水体的严重污染,由于它的积累性和不可降解性,目前重金属污染已成为人们广泛关注的热门话题,在食品、环境污染监督检验中被列为重点检测项目。目前测定重金属离子的主要仪器分析方法有：原子吸收光谱法、原子发射光谱法、ICP-质谱法、X-射线荧光光谱法、离子选择性电极、伏安法及库仑法等。这些方法的研究多有报导,但这些方法存在耗时、分析步骤复杂、分析仪器昂贵、采样频率低等缺点。     

C_nSH~±与C_nS_2~±的碰撞诱导解离研究

在自制的交叉分子-离子束串级飞行时间质谱仪上，以激光溅射的方式，产生了一系列含有一个硫原子和一个氢原子与含有两个硫原子的杂碳原子簇正负离子、经“质量门”选出单一质量的簇离子，与氮气的超声分子束交叉碰撞，然后分析其碰撞碎片．研究结果确定了这些簇离子的结构，两个杂原子分别位于碳链的两端．对碎片离子的分析还揭示了这些簇离子的主要解离通道及其与成簇碳原子数和所带电荷极性的关系，发现当成簇碳原子数较少时，簇离子中最薄弱的是S－C键，随着残链的增长，与硫原子相邻的C－C键变得更为薄弱；实验中存在着多次碰撞的机会，因而各碎片离子还有可能进一步解离．     

原子吸收和原子发射光谱法测定工业废水中总铬方法比对

为了探讨原子吸收光谱法和原子发射光谱法测定工业废水中的总铬分析方法的异同,本文分别采用两种方法对工业废水中的总铬进行对比分析,对样品前处理方法、标准曲线、方法检出限、准确度、精密度、干扰及消除等进行比较,并对两种方法的测定结果进行t检验。结果表明,两种方法具有良好的一致性。相对来说,原子发射光谱法各方面指标要优于原子吸收光谱法。     

On-line coupling of ion chromatography and atomic spectrometry for ultra trace analysis in high purity molybdenum- and tungsten-silicide

The well-established technique of on-line coupling ion chromatography and atomic spectrometry for ultra trace analysis in high purity molybdenum and tungsten is extended to include the silicides MoSi(x) and WSi(x). An additionally included matrix elimination step allows an almost interference-free trace analysis in the silicide matrices. Reproducibility and accuracy of the on-line method were checked by comparison with several other methods, such as isotope dilution, radiochemical neutron activation analysis, direct determination by atomic absorption analysis and not at least with glow discharge mass spectrometry. The results show the high potential of the on-line method for reaching detection limits in the pg g(-1) range, but they show also remaining problems with contamination and system calibration.     

Trace and major element compositions of Black Sea aerosol

Instrumental neutron activation analysis (INAA), flame atomic absorption spectrometry (FAAS), flame atomic emission spectrometry (FAES), graphite furnace atomic absorption spectrometry (GF-AAS), ion chromatography (IC) and visible spectrometry (VIS) were used to determine the composition of atmospheric aerosols, collected at a rural site in the Western Black Sea Coast of Turkey. A total of 354 daily aerosol samples were analyzed for 46 trace and major elements and ions. Sample preparation, quality control procedures, instrumental operating conditions for INAA and source apportionment work is presented.     

Recent developments in cyanide detection: A review

The extreme toxicity of cyanide and environmental concerns from its continued industrial use continue to generate interest in facile and sensitive methods for cyanide detection. In recent years, there is also additional recognition of HCN toxicity from smoke inhalation and potential use of cyanide as a weapon of terrorism. This review summarizes the literature since 2005 on cyanide measurement in different matrices ranging from drinking water and wastewater, to cigarette smoke and exhaled breath to biological fluids like blood, urine and saliva. The dramatic increase in the number of publications on cyanide measurement is indicative of the great interest in this field not only from analytical chemists, but also researchers from diverse environmental, medical, forensic and clinical arena. The recent methods cover both established and emerging analytical disciplines and include naked eye visual detection, spectrophotometry/colorimetry, capillary electrophoresis with optical absorbance detection, fluorometry, chemiluminescence, near-infrared cavity ring down spectroscopy, atomic absorption spectrometry, electrochemical methods (potentiometry/amperometry/ion chromatography-pulsed amperometry), mass spectrometry (selected ion flow tube mass spectrometry, electrospray ionization mass spectrometry, gas chromatography-mass spectrometry), gas chromatography (nitrogen phosphorus detector, electron capture detector) and quartz crystal mass monitors.     

原子吸收光谱和原子发射光谱法测定工业废水中的总铬

为了探讨原子吸收光谱法和原子发射光谱法测定工业废水中的总铬分析方法的异同,分别采用两种方法对工业废水中的总铬进行了对比分析,对样品前处理方法,方法的标准曲线、检出限、准确度、精密度、干扰及消除等进行了比较,并对两种方法的测定结果进行t检验。结果表明,两种方法具有良好的一致性。相对来说,原子发射光谱法各方面指标要优于原子吸收光谱法。     

稀土对牙孢菌的抑菌机理研究

某些稀土盐类及其配合物抑菌性强、抑菌谱广,尤其对生命力极强的芽孢菌有 着更为突出的抑菌效果。本文的研究目的是探索稀土盐类及其配合物对芽孢菌的抑 菌机理;采用生物和化学方法,对芽孢进行破碎及成分的分离,借助电镜细胞化学 技术、红外光谱法、荧光分析法、原子吸收光谱法等检测手段,从分子水平上确定 了稀土离子在芽孢中的结合位点,提出了稀土对芽孢菌的抑菌机理是稀土离子取代 了芽孢内2,6-吡啶二羧酸钙(DPA-Ca~(2+))中Ca~(2+)的结合位点,形成了2,6-吡啶 二羧酸与稀土离子的配合物。     

Trace characterization of high-purity molybdenum and tungsten by electrothermal atomic absorption spectrometry, inductively coupled plasma atomic emission spectrometry, inductively coupled plasma mass spectrometry and total reflection X-ray fluorescence spectrometry involving analyte—matrix separation

A technique for the separation of 42 trace elements from up to 5 g of molybdenum and tungsten matrices was developed by means of the radiotracer technique. It is based on adsorption of the analyses on the cation exchanger Dowex 50 W x 9 from a 4% H₂O₂/0.01 mol 1⁻¹ HNO₃ solution followed by their elution with 15 ml of 4 mol I⁻¹ HNO₃ in the opposite flow direction. Both matrices were removed with a separation factor > 10⁴. The separation technique was applied to the analysis of these materials by electrothermal atomic absorption spectrometry, inductively coupled plasma atomic emission spectrometry, inductively coupled plasma mass spectrometry and total reflection X-ray fluorescence spetrometry. For all the determination methods used, the limits of detection are given and compared with those of other methods. With inductively coupled plasma mass spectrometry, for 22 of the 30 assayed elements, limits of detection at the sub-ng g⁻¹ level were achieved. The results are compared with those obtained by radiochemical neutron activation analysis in this work and by glow discharge mass spectrometry, secondary ion mass spectrometry, isotope dilution mass spectrometry and by solution spectrometric methods in other laboratories.     

Atomic absorption spectrometry and other instrumental methods for quantitative measurements of arsenic

Progress in instrumental methods for quantification of arsenic during the past decade is reviewed. Particular emphasis is placed on atomic absorption spectrometry, where major progress has been made in flame methods in conjunction with hydride generation procedures and in electrothermal methods with the graphite furnace. Specific materials in which arsenic is quantified by atomic absorption techniques are also listed. Progress in the application of neutron activation—γ-spectrometry, emission spectrometry, electrometric methods, x-ray procedures and atomic fluorescence spectrometry is also reviewed. The limits of detection and time requirements of all the techniques are compared.     

Application of Ion Chromatography,Nuclear and Spectrochemical Techniques for Trace and Major Element Determination in Seaside Aerosols

Instrumental neutron activation analysis, flame atomic absorption spectrometry, flame atomic emission spectrometry, graphite furnace atomic absorption spectrometry, ion chromatography and visible spectrometry were applied to determine the compositions of atmospheric aerosols, which were collected at a rural site in the Western Black Sea Coast of Turkey. A total of 354 daily aerosol samples were analyzed for about 46 trace and major elements and ions. Sample preparation, quality control procedures, and instrumental operating conditions were reported. Most of the elements measured commonly by the above techniques have very large correlation coefficients and low intercept values indicating the agreement between the results.