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A Perspective of Laser Sampling for Inductively Coupled Plasma-Atomic Emission Spectro metry for Rock and Mineral Analysis
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作者 Lin Shoulin Peng ZhaofengChina University of Geosciences , Wuhan 430074 《Journal of Earth Science》 SCIE CAS CSCD 1992年第1期120-128,共9页
The development of laser sampling for optical emission spectrometry is reviewed . Advantages and limitations of pulsed laser sampling are compared with those of continuous laser sampling . A novel method of laser samp... The development of laser sampling for optical emission spectrometry is reviewed . Advantages and limitations of pulsed laser sampling are compared with those of continuous laser sampling . A novel method of laser sampling of liquid samples for inductively coupled plasma -atomic emission spectrometry has been proposed , and its analytical performance investigated.Experimental results showed that,as a method of sample introduction , laser vaporization of liquid samples enjoyed certain advantages , e.g.,much higher sensitivity, much lower detection limit and reduced sample volume , over solution nebulization . A perspective of the application of laser sampling-inductively coupled plasma - actomic emission spectrometry for rock and mineral analysis is estimated as well. 展开更多
关键词 continuous laser sampling complete laser vaporization of samples inductively coupled plasma-atomic emission spectrometry solid sample liquid sample rock and mineral analysis .
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Simultaneous determination of some trace metal impurities in high-purity sodium tungstate using coprecipitation and inductively coupled plasma atomic emission spectrometry 被引量:3
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作者 MAXiaoguo KUANGTongchun LIUQianjun 《Rare Metals》 SCIE EI CAS CSCD 2004年第3期193-196,共4页
A method based on the combination of coprecipitation with inductively coupledplasma atomic emission spectrometry (ICP-AES) was developed for the determination of impurities inhigh-purity sodium tungstate. Six elements... A method based on the combination of coprecipitation with inductively coupledplasma atomic emission spectrometry (ICP-AES) was developed for the determination of impurities inhigh-purity sodium tungstate. Six elements (Co, Cu, Fe, Mn, Ni, and Pb) were coprecipitated bylanthanum hydroxide so as to be concentrated and separated from the tungsten matrix. Effects of somefactors on the recoveries of the analytes and on the residual amount of sodium tungstate wereinvestigated, and the optimum conditions for the coprecipitation were proposed. Matrix-matchingcalibration curve method was used for the analysis. It is shown that the elements mentioned abovecan be quantitatively recovered. The detection limits for Co, Cu, Fe, Mn, Ni, and Pb are 0.07, 0.4,0.2, 0.1, 0.6, and 1.3 μg·g^(-1), respectively. The recoveries vary from 92.5% to 108%, and therelative standard deviations (RSDs) are in the range of 3.1%-5.5%. 展开更多
关键词 analytical chemistry trace metal determination inductively coupled plasmaatomic emission spectrometry (icp-aes) coprecipitation sodium tungstate
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ICP-AES法测定煤中硫含量的不确定性评定
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作者 陈菊 李靖 《安徽农业科学》 CAS 2014年第26期8974-8975,9060,共3页
[目的]为准确表示煤炭中硫含量奠定基础。[方法]应用电感耦合等离子体发射光谱仪(ICP-AES),对煤中的硫含量进行测定,同时对测量结果的不确定度进行评价。[结果]获得各个不同来源的不确定度,并且计算合成标准不确定度,对测定结果给出合... [目的]为准确表示煤炭中硫含量奠定基础。[方法]应用电感耦合等离子体发射光谱仪(ICP-AES),对煤中的硫含量进行测定,同时对测量结果的不确定度进行评价。[结果]获得各个不同来源的不确定度,并且计算合成标准不确定度,对测定结果给出合理的波动范围。[结论]评价结果对测定方法有效性的判定与优化以及煤燃烧过程中的污染控制具有重要意义。 展开更多
关键词 电感耦合等离子体发射光谱仪(icp-aes) 硫含量 测定 不确定度 inductively coupled plasma ATOMIC emission spectrometry (icp-aes)
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Direct and Simultaneous Determination of Several Impurity Elements in Manganese Tetroxide using ICP-AES 被引量:2
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作者 姚俊 Atakora Djak Ladislau Kékedy-Nagy 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2006年第1期4-8,共5页
A rapid method for the determination of impurity elements, such as Zn, Ni, Co, Cr, Cu, Cd and Pb in manganese tetroxide was developed, using inductively coupled plasma atomic emission spectrometry (ICP-AES). The cri... A rapid method for the determination of impurity elements, such as Zn, Ni, Co, Cr, Cu, Cd and Pb in manganese tetroxide was developed, using inductively coupled plasma atomic emission spectrometry (ICP-AES). The critical instrumental parameters such as sample flow rate and radio frequency incident were thoroughly optimized. The effect of matrix was also examined. The sensitivity was investigated using calibration curves obtained in presence of the matrix. The obtained recoveries for Ni, Co, Cr, Cu, and Cd at the μg· g^ -1 level were satisfactory and practically independent of the matrix used for the calibration standards. The recoveries of Pb and Zn were less suffwient. The method can be applied for routine analysis and quality control purposes at μg· g^-1 level of concentration. 展开更多
关键词 manganese tetroxide impurity elements inductively coupled plasma-atomic emission spectrometry
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电感耦合等离子体原子发射光谱法(ICP-AES)测定磷生铁中的Mn、P、Si 被引量:2
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作者 申娟娟 《四川环境》 2014年第2期34-36,共3页
建立了电感耦合等离子体原子发射光谱(ICP-AES)法测定磷生铁中3种元素Mn、P、Si的定量分析方法.通过试验选择257.610nm、185.942nm、212.412nm分别作为Mn、P、Si的分析谱线,无需进行光谱干扰校正.实验结果表明,各元素分析谱线线性相... 建立了电感耦合等离子体原子发射光谱(ICP-AES)法测定磷生铁中3种元素Mn、P、Si的定量分析方法.通过试验选择257.610nm、185.942nm、212.412nm分别作为Mn、P、Si的分析谱线,无需进行光谱干扰校正.实验结果表明,各元素分析谱线线性相关系数大于0.9990.方法用于高磷铸铁标准物质分析,测定值与认定值相符,测定结果的相对标准偏差在0.21% (Mn) ~1.8% (P)范围. 展开更多
关键词 电感耦合等离子体原子发射光谱法 磷生铁 inductively coupled plasma ATOMIC emission spectrometry (icp-aes)
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自然水中SO_4^(2-)的测定
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作者 罗雯 《成都大学学报(自然科学版)》 2005年第2期104-106,共3页
利用B2+a作沉淀剂与SO2-4反应,形成硫酸钡晶状沉淀的反应基础.本文讨论了各种反应条件,确定了测定方法的精密度,对AAS—FAAS和ICP—AES的对比分析结果,制定了间接测定天然水中SO2-4的两种方法,获得满意结果.
关键词 SO4^2- 自然水 Ba^2+ 反应条件 晶状沉淀 测定方法 分析结果 FAAS 间接测定 沉淀剂 硫酸钡 精密度 AES ICP 天然水
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Heavy metals accumulation effect in rabbit body fluids after smoking 被引量:2
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作者 钟狂飚 桂明 +3 位作者 朱立勇 李维 管茶香 郭方遒 《Journal of Central South University》 SCIE EI CAS 2011年第5期1408-1412,共5页
Concentration of heavy metals in blood and urine of rabbit after inhaling three different kinds of cigarette was studied through the animal passive smoking pattern. The samples were prepared by nitric acid solution di... Concentration of heavy metals in blood and urine of rabbit after inhaling three different kinds of cigarette was studied through the animal passive smoking pattern. The samples were prepared by nitric acid solution digestion and determination of seven kinds of heavy metals including Hg, Se, Sn, Pb, Cd, Ni and Cr was performed by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The ICP-AES method was established with good precision and accuracy, relative standard deviation (n=6) was between 2.9% and 5.9%, and the recovery was in the range of 95.0%-104.2%. Concentration of six heavy metals increases in some extent in blood and urine after period of smoking and the increasing of heavy metals in blood and urine all shows time dependence. Significantly higher heavy metal levels are observed in the blood and urine of the cigarette inhaling rabbits in the exposed group. The concentration of six kinds of heavy metals in the blood of the rabbit increases after 16 weeks exposing to cigarette smoking. Three times of rig, ten times of Se and trace amount ofPb, Cd, Ni and Cr are detected in the blood after 16 weeks of smoking. For urine samples, about three times of Hg, two times of Se, five times of Pb and trace amount of Cd are detected after 16 weeks of inhalation of cigarette. Comparatively, higher concentration of heavy metals are detected after inhaling of Nise cigarette. 展开更多
关键词 inductively coupled plasma-atomic emission spectrometry BLOOD URINE heavy metal element
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Chemical Characterization of Auriferous Ores from the Brazilian State of Paraiba 被引量:1
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作者 Marcelo Rodrigues do Nascimento Artur M.G.Lourenco 《Journal of Minerals and Materials Characterization and Engineering》 2015年第1期9-14,共6页
One of the most important problems facing the gold industry is that the placer and free milling gold ores are almost terminating. Hence, the use of refractory ores has been increased during the recent years. In genera... One of the most important problems facing the gold industry is that the placer and free milling gold ores are almost terminating. Hence, the use of refractory ores has been increased during the recent years. In general, gold refractory ores occurs in various types of deposits associated with a range of minerals. Among the refractory ores, the sulfide type is the most common. The methodology employed in the mining process depends on the mode of occurrence of the ore and on the particle size, shape and degree of purity of the auriferous species. We have undertaken a mineralogical investigation of a representative sample of a complex gold mining ore collected in the municipality of Princesa Isabel, Paraiba, Brazil, using X-ray fluorescence spectrometry, X-ray diffractometry, infrared spectroscopy, inductively coupled plasma-atomic emission spectrometry and the Fire Assay. The results showed that the arsenic content of the ore was closely related to the gold content, and that the occurrence of “invisible gold” was associated primarily with pyrite and secondarily with arsenopyrite. The sulfur content of the ore was directly related to its refractoriness. It is concluded that gold mineralization in the study area is mainly of the gold-quartz-sulfide veins (lode gold), while the gold found in the mini-fractures of the deposits is probably associated with the hydrothermal processes that occurred in the region. 展开更多
关键词 Auriferous Ore Chemical Characterization X-Ray Fluorescence spectrometry X-Ray Diffractometry inductively Coupled plasma-atomic emission spectrometry
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