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Showing 1 to 20 of 30 for “"Atomic Emission Spectrometry"”.
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A multi-mode spectrometer for atomic emission spectrometry
A unique spectrometer system, the Multi-Mode Spectrometer (MMS), has been developed. The MMS integrates a scanning Michelson interferometer, a flat-field grating, and a linear photodiode array detector into a single spectrometer system. With these components, the MMS is capable of applying …
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Analysis of Galvanized Steel Plates Using Glow Discharge-Atomic Emission Spectrometry
Combining an intense emission source and a high-speed sputtering source in one, glow discharge atomic emission spectrometer (GD-AES) provides an efficient technique for analyzing surfaces, coatings and bulk solids. The purpose of our work is to explore the optimum lamp operation parameters of …
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Slurry, Solution and Speciation Analysis By Inductively Coupled Plasma Atomic Emission Spectrometry
Inductively coupled plasma atomic emission spectrometry has been investigated for solution, slurry and speciation analysis. It has been shown that it is possible to optimise a simultaneous multielement analysis for slurry and solution samples using solid state detection and optimisation algorithms. …
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A zero-bias spark source for direct solid sample introduction for inductively coupled plasma atomic emission spectrometry
… was evaluated by time profiles, a plot of emission intensity vs. time. Spark sampling and concurrent spectral emission are stable over time. Elements also tend to track each other was seen when ratioing minor elements signal intensity to the major constituent signal intensity of the sample. …
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Evaluation of slurry injection for the determination of metals in solid samples using inductively coupled plasma atomic emission spectrometry
… showed that, by adding about 5 ppm of PEO, the emission intensity of an analyte increased significantly. Further experiments demonstrated that the signal enhancement resulted from an increase in the nebulizer efficiency brought about by a slight increase in viscosity of the slurry. The use of …
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Continuous hydride generation in the presence of L- cysteine for the determination of arsenic, bismuth, antimony and tin in steels by inductively coupled plasma atomic emission spectrometry
… generation and inductively coupled plasma-atomic emission spectrometry . I Hydrides were introduced into four different types of gas-liquid separators. Two of the gas-liquid separators were available in-house. A third was developed for this project and a fourth was based on a design used by …
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An Inductively Coupled Plasma Atomic Emission Spectrometer for the Detection of Nonmetals in the Vacuum Ultraviolet
Inductively coupled plasma atomic emission spectrometry (ICP-AES) has emerged as a dominant spectroscopic technique for the determination of metals in a plethora of sample types. The bulk of the interest has been placed on trace metal analysis, and the analysis of nonmetals has been gaining …
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Trends in Tungsten Coil Atomic Spectrometry
Renewed interest in electrothermal atomic spectrometric methods based on tungsten coil atomizers is a consequence of a world wide increasing demand for fast, inexpensive, sensitive, and portable analytical methods for trace analysis. In this work, tungsten coil atomic absorption spectrometry …
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PLASMA SPECTROCHEMICAL ANALYSIS OF SLURRIES
… coupled plasma and direct current plasma-atomic emission spectrometry (ICP-AES, DCP-AES) and inductively coupled plasma-mass spectrometry (ICP-MS). Aqueous calibrants were used. Fundamental aspects were modelled. The particle size and dispersion of samples are the most important criteria …
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Mass Balance of Major, Minor and Trace Elements During AFBC Combustion of Fuels
… residues by inductively coupled plasma-atomic emission spectrometry (ICP-AES) were checked for routine use. In this study, the ICP analysis values and XRF analysis values of major and minor elements in two kinds of coal and two kinds of limestone were compared. It was shown that over 95% …
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ICP Analysis of Solids/Waste Slurries
… solid samples using inductively coupled plasma-atomic emission spectrometry.
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Portable Tungsten Coil Atomic Emission and Atomic Fluorescence Spectrometry
Tungsten Coil Atomic Emission Spectrometry is an ideal technique for field applications because of its simplicity, low cost, low power requirement and independence from cooling systems. A new, portable, compact design is reported here. The tungsten coil is extracted from a 24 V, 250 W commercial …
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Engineered iron oxide nanoparticle-polymer composites for the removal of dissolved arsenic and antimony
… as X-Ray Diffraction (XRD), microwave plasma atomic emission spectrometry (MP-AES) and Malvern Zetasizer, were used to characterise the properties of the composites and analyze dissolved As and Sb concentrations. Details of the experimentalprocedures and results have been presented in this …
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Microwave-assisted sequential extraction of polyclic aromatic hydrocarbons and potentially toxic elements from urban environmental solids
… was used for the determination of PAH. Flame atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry were as used for the determination of PTEs. The method was developed using certified reference materials (CRMs) and several urban substrates. The …
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Development and characterization of a low power helium microwave induced plasma for spectrometric determinations of metals and nonmetals
… source for metals and nonmetals with the use of atomic emission spectrometry (AES) and atomic fluorescence spectrometry (AFS). A torodial plasma was sustained in the cavity solely by the helium gas output of the nebulizer. Aqueous samples from a pneumatic glass nebulizer/Scott spray chamber were …
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Tungsten Coil Electrothermal Vaporization for Atomic Spectroscopy
… as an alternative sample introduction method in atomic spectroscopy for some time. Typically, electrothermal vaporizers made of graphite, but these devices do not lend well to mass production, are expensive, and require large power supplies for operation. In addition to these structural and …
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Effects of polyphosphates on frozen chickens.
… were determined by Inductively Coupled Plasma Atomic Emission Spectrometry (IOPAES). The hydrolysis of polyphosphates was studied using thin layer chromatography(TLC) and phosphorus-31 Fourier transform nuclear magnetic resonance ([31] P-FTNMR) . The reasons for choosing thesetechniques, and …
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Application of an argon-cooled inductively coupled plasma to the analysis of metals in lubricating oils
A sequential atomic emission spectrometer, using a low power (1,7 kW) argon-cooled inductively coupled plasma (ICP) system, was used for the determination of wear metals and additives in lubricating oils with xylene as solvent. The modified Simplex method was applied to establish the optimum …
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The effects of organic gases on atomic spectrometric signals in the ICP
… of the ICP has been as an excitation cell for atomic emission spectrometry (AES). More recently, it has been used as an atomization cell for atomic fluorescence spectrometry (AFS). Since the ICP is an energetic source, the vaporization process is efficient. This high temperature promotes …
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Sample introduction and solvent effects in an argon and helium microwave induced plasma
Atomic emission spectrometry (AES) with a plasma has proven to be an important method for the analysis of metallic and nonmetallic species in a variety of matrices. Not only is atomic spectrometry useful for accurate and sensitive quantitative analysis, but it can be used as a means of unambiguous …
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