等离子体发射光谱法测定大白鼠脑组织中的铝

铝元素在脑中累积会损伤脑功能[1-2],据不少文献报道,阿尔茨海默氏病(A lzheimer′s d isease,简称AD)即人们统称的老年性痴呆病患者脑中的铝含量显著高于正常人[3-4]。铝在脑中含量很低,目前测定低含量铝使用较多的方法是石墨炉原子吸收法,由于铝在高温时容易与石墨管发生反应     

Determination of Platinum,Palladium, Ruthenium,Rhodium, and Iridium in Ultrabasic Rock from the Great Dyke of Zimbabwe by Inductively Coupled Plasma–Optical Emission Spectrometry

Platinum, palladium, ruthenium, rhodium, and iridum were determined in ultrabasic rock from the Great Dyke of Zimbabwe by inductively coupled plasma optical emission spectrometry. The limits of detection for these elements were less than 7 ng/g. The samples were fused at 1100°C to separate the noble metals which were enriched into a nickel sulfide button and dissolved in hydrochloric acid. The insoluble noble metals were filtered, dissolved in aqua regia in a boiling water bath, and determined by inductively coupled plasma optical emission spectrometry. This method was employed for the characterization of large quantities of ultrabasic rock from the Great Dyke of Zimbabwe.     

有机试剂雾化进样电感耦合等离子体原子发射光谱特性的研究

利用流动注射技术对有机试剂雾化进样情况下电感耦合等离子体（ＩＣＰ）的特性进行了研究。考察了有机试剂对ＩＣＰ放电外观的影响。对ＩＣＰ的局部热平衡状态作了判定。由Ｍｇ２７８．３０ｎｍ和Ｍｇ３３３．６７ｎｍ二线法对有机试剂负载和水负载情况下ＩＣＰ的激发温度分别作了计算。讨论了试剂分子裂解产物的光谱干扰问题。     

盐酸苯海拉明的 ICP-AES法间接测定

建立了一种间接测定盐酸苯海拉明的方法;在pH4.0时 ,将盐酸苯海拉明与Cu2 和锌试剂的三元混配络合物萃入甲基异丁酮 (MIBK)和磷酸三丁酯 (TBP)的混合萃取剂中 ,采用电感耦合等离子体原子发射光谱法(ICP -AES)测定有机相中的Cu2 ,从而间接测定盐酸苯海拉明含量;方法测定线性范围在10～100mg·L -1 ,检出限为0.35mg·L-1,回收率为76 %～107 % ,相对标准偏差 (RSD ,n=10)<3%;方法简便、快速、准确 ,线性范围宽 ,实际测定结果令人满意。     

电感耦合等离子体发射光谱(ICP-OES)法同时测定高纯钼中多种痕量元素

建立了电感耦合等离子体发射光谱(ICP-OES)法测定钼中Co、Cu、Fe、Mg、Mn、W、Zr元素含量的方法。确定了溶样方法和分析谱线,采用基体匹配消除干扰。对方法精密度和准确度进行实验,实验结果表明,各元素的相对标准偏差均小于3%,加标回收率在81.0%~110%。所建方法快速、准确,适用于钼中多元素同时测定。     

Exploratory Analysis for Elemental Characterization of Biomass Residues From Biodiesel Production by Inductively Coupled Plasma Optical Emission Spectrometry

Edible and non-edible seeds with high oil content are used as the main raw material for biodiesel production. The residual biomass (press cake or oil cake) can be used as animal feed, to aggregate value to the biodiesel production cycle. In this work, a microwave-assisted-digestion procedure for elementary determination by inductively coupled plasma optical emission spectrometry (ICP OES) using dilute nitric acid was developed. Inter-laboratorial reference material was used to check the accuracy. A full factorial design in addition to exploratory analysis through principal component analysis (PCA) and hierarchical cluster analysis (HCA) were used to classify the samples: press cakes from castor (Ricinus communis), jatropha (Jatropha curcas), radish (Raphanus sativus), sunflower (Heliantus annus), and coffee (Coffe arabica), according to their similarities.     

ICP-OES测定低品位铬铁矿中Cr含量

建立了一套快速准确测定低品位铬铁矿中Cr的分析方法。通过采用浓硝酸-硫磷混酸对试样进行消解,利用电感耦合等离子体发射光谱仪（ICP-OES）测定低品位铬铁矿中Cr。该方法检出限低,测定范围广,线性范围内相关系数R为0.999911,相对标准偏差在1.99-6.00%、回收率在96.8%-104.8%间,方法对比数据吻合,结果满意,适宜推广。     

电感耦合等离子体发射光谱(ICP-OES)法测定石灰石中5种氧化物含量

建立了电感耦合等离子体发射光谱(ICP-OES)法测定石灰石样品中5种氧化物氧化镁(MgO)、三氧化二铁(Fe_2O_3)、二氧化硅(SiO_2)、氧化锰(MnO)、三氧化二铝(Al2O3)含量的方法。先将样品与无水碳酸钠和四硼酸钠高温熔融后,再用盐酸进行消解可以很好地溶解石灰石样品。选择Mg285.21nm、Fe 238.20nm、Si 251.61nm、Mn 257.61nm、Al 396.15nm为分析谱线,采用空白校正的方法校正基体的影响。在选定的实验条件下,各元素标准曲线的线性相关系数均不小于0.999,测定结果的相对标准偏差(RSD,n=6)在1.8%～2.4%,各测定元素的加标回收率也在94%～105%。按照实验方法将各元素测定结果与5种国家标准测定方法得出的结果进行比对,准确度、精密度、回收率均在理想范围内。结果表明,所建立的方法可以满足石灰石中5种元素联测的要求,并且更加快速、准确。     

电感耦合等离子体发射光谱法测定纺织品中总硼

建立了微波消解-电感耦合等离子体发射光谱法(ICP-OES)测定纺织品中总硼的分析方法。纺织样品经HNO_3-H_2O_2微波消解,以钇元素作为内标元素,以249.772nm波长作为硼的分析线,采用ICP-OES法进行测定。实验结果表明,硼的质量浓度在0.01~0.20mg/L范围内与发射强度比值呈线性关系,方法的定量限为0.8mg/kg,在0.8、1.6、8.0mg/kg添加水平下的回收率为80.4%~104.7%,相对标准偏差为2.4%~9.8%。该方法灵敏度高,定量准确可靠,能够满足纺织品中总硼含量的检测要求。     

等离子体原子发射光谱/质谱在新型陶瓷材料分析中的应用

本文对近几年来等离子体原子发射光谱（ＩＣＰ－ＡＥＳ）和等离子体质谱（ＩＣＰ－ＭＳ）在新型陶瓷材料分析中的应用进行了评述,讨论了应用ＩＣＰ－ＡＥＳ／ＭＳ技术测定陶瓷材料中痕量杂质的各种进样技术。引用文献６０篇。     

ICP-AES 法测定金属镝与氧化镝中 Mn、Ca、La 等15个元素

采用等离子光谱法测定了镝金属中的Mn、Ca、La等15个元素。利用正交试验L9（3^4）优化了仪器操作条件。方法回收率在93.6％－108％之间,相对标准偏差小于6.5%。     

ICP OES Simultaneous Determination of Ca,Cu, Fe,Mg, Mn,Na, and P in Biodiesel by Axial and Radial Inductively Coupled Plasma-Optical Emission Spectrometry

Abstract

A simple and rapid method for the simultaneous determination of seven trace elements in biodiesel by axial and radial view Inductively Coupled Plasma Optical Emission Spectrometry (ICP OES) is proposed, in which the sample is emulsified with Triton X-100 and water, and in which yttrium is employed as an internal standard. The better obtained quantification limits (10 s) were by axial view, 0.165, 0.099, 0.033, 0.007, 0.016, 0.132, 0.660 µg g^?1 for Ca, Cu, Fe, Mg, Mn, Na, and P, respectively, based on a sample mass of 1.0 g diluted to a final mass of 10 g in the analytical solution. Calibration was carried out with aqueous standards, thus avoiding the use of frequently instable organic standards. Elemental recoveries were in the range of 90 to 109% for all seven analytes studied, and also the precision of the method was satisfactory (RSD < 8%).     

电感耦合等离子体发射光谱法测定锗精矿中锗量

建立了用硝酸、氢氟酸、磷酸溶解样品,电感耦合等离子体发射光谱法测定锗精矿中锗量的方法。试验选择209.426nm作为最优分析谱线,锗的检出限为0.006μg/mL,测定下限为0.020 μg/mL,在磷酸基体匹配的条件下测定,测定范围为1%-15%,与经典碘酸钾滴定法对比,数据一致,相对标准偏差<3%(n=11),加标回收率98%~101%,能够满足快速测定及批量处理锗精矿中1%-15%的锗含量的需求。     

电感耦合等离子体发射光谱(ICP-OES)法测定铅精矿中9种元素

采用硝酸-盐酸-氢氟酸-高氯酸溶样,优化仪器测定条件及消除干扰元素的条件实验等,建立了电感耦合等离子体发射光谱(ICP-OES)法测定铅精矿中砷、锑、铋、铜、锌、镁、铝、铁、镉的方法。其测定范围ω(As):0.02%~1.50%;ω(Sb):0.01%~10.00%;ω(Bi):0.03%~5.00%;ω(Cu):0.50%~10.00%;ω(Zn):2.00%~10.00%;ω(Mg):0.30%~2.00%;ω(Al):0.50%~3.00%;ω(Fe):5.00%~12.00%;ω(Cd):0.030%~0.20%。经加标回收实验,各元素的加标回收率为90%~104%(n=3)。方法准确、快速、可靠,适用于铅精矿中砷、锑、铋、铜、锌、镁、铝、铁、镉量的同时测定。     

电感耦合等离子体光谱和质谱法分析贻贝标准物质

采用电感耦合等离子体光谱和质谱法分析了贻贝标准物质,光谱法测定Ｋ、Ｎａ、Ｃａ、Ｍｇ、Ｐ、Ａｌ、Ｆｅ、Ｚｎ、Ｍｎ和Ｓｒ,质谱法测定Ａｓ、Ｂ、Ｃｄ、Ｃｏ、Ｃｒ、ＣｕＧａ、Ｇｅ、Ｍｎ、Ｍｏ、Ｎｉ、Ｐｂ、Ｓｅ、Ｓｒ、Ｕ和Ｖ。在优化的工作条件下,测定了来自基体元素Ｋ、Ｎａ、Ｃａ、Ｐ、Ｃｌ的Ｃ的多原子离子＾３９Ｋ＾１６Ｏ、＾３９Ｋ２、＾４０Ａｒ＾２３Ｎａ、＾４３Ｃａ＾１６Ｏ、＾４２Ｃａ＾１６Ｏ、＾３１Ｐ＾１６     

电感耦合等离子体光谱/质谱联机同时测定多金属结核中常量、微量、痕量元素

采用电感耦合等离子体质谱(ICP-MS)与等离子体光谱(ICP-OES)联机同时测定多金属结核样品中常量、微量、痕量元素。样品经高压密封溶样弹消解后,一次气动雾化进样,ICP-OES测定常量和微量元素,ICP-MS测定微量和痕量元素。详细探讨了不同浓度范围元素的测定方式、元素分析信号的采集模式、多原子离子干扰的校正因子。采用ICP-MS与ICP-OES二种方式同时测定Co、Cu、Ni、Zn、V、Ba、Sr,分析结果表明具有较好的一致性。所建立的ICP-MS与ICP-OES联机检测技术用于多金属结核标准样品的分析(Nod-A-1,GSPN-1,GSPN-2,GSPN-3),分析结果与推荐值符合,相对标准偏差小于10％。     

Rapid Elemental Analysis of Sugarcane Spirits by Inductively Coupled Plasma: Optical Emission Spectrometry

A simple, direct, and rapid method was developed and employed to determine arsenic, cadmium, copper, lead, and nickel in sugarcane spirits by inductively coupled plasma – optical emission spectrometry (ICP-OES). The samples were analyzed directly, avoiding the need for sample treatment or the use of toxic chemicals in agreement with the green chemistry principles. The accuracy was evaluated using spiked trials at three levels for each contaminant, with recoveries between 83 and 115%. High sensitivity was obtained, with limits of detection less than 0.008?mg?L^?1 for all elements but copper (0.05 mg?L^?1), in agreement with Brazilian and The Common Market of the South regulations. Low values of coefficient of variation were also observed, 0.4 to 7.7% for all analytes. The analysis time and sample amount required for the direct method were lower than methods that use sample treatment procedures, which is very positive for routine laboratory analysis.     

电感耦合等离子体光谱法测定废钒触媒中钒的含量

本文建立了用盐酸、硝酸、氢氟酸和高氯酸的混合酸溶解样品,采用电感耦合等离子体发射光谱法(ICP-OES)测定废钒触媒中钒含量的分析方法。该方法确定了最佳溶样方法和仪器的最佳条件。在选定的操作条件下,钒的检出限0.026μg/mL。相对标准偏差(n=11),RSD<1%,加标回收率在98.85%-101.30%之间。用该法测定废钒触媒中钒的含量,流程短,易操作,结果令人满意。     

电感耦合等离子体原子发射光谱法(ICP-OES)测定铍铀伴生矿石中的铍

建立了电感耦合等离子体原子发射光谱法(ICP-OES)测定铍铀伴生矿石中的铍的方法,研究了酸溶-碱熔融法溶样过程中加入的焦硫酸钾,对ICP-OES法测定铍铀伴生矿石中的铍含量产生的基体干扰问题。主要阐述消除基体干扰的一些措施。从实验数据可知,控制称样量、焦硫酸钾加入量、定容体积和加标稀释倍数,能够有效消除焦硫酸钾对ICP-OES法测定结果的基体干扰,6次平行测定结果的相对标准偏差为3.4%,加标回收率为98.7%~104.4%,实验表明,方法准确、可靠。     

电感耦合等离子体发射光谱(ICP-OES)法测定矿石中锑

通过探究样品溶解及测定方法存在的问题,确立了样品经硝酸-氢氟酸-高氯酸溶解,硫酸助溶,在盐酸介质中电感耦合等离子体发射光谱(ICP-OES)法直接测定矿石中锑的方法,其方法检出限为1.32μg/g,测定下限为5.28μg/g,相对标准偏差(RSD)小于5%,经标准物质和实际样品验证表明,方法简便、易行,结果准确,是现有矿石中锑测定方法的有效补充。