Constant-temperature atomiser-computer controlled échelle spectrometer system for graphite furnace atomic emission spectrometry

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发布日期
DOI 10.1039/JA9860100105
影响因子 4.023
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摘要

A constant-temperature atomiser (CTA) was combined with an échelle spectrometer for graphite furnace atomic emission spectrometry (GFAES). The spectrometer incorporated a quartz refractor plate, which provided wavelength modulation background correction, under computer control. In order to investigate various parameters for GFAES measurements we developed a versatile computer program (for data acquisition and waveform generation) and a CTA in which tube dimensions and heating modes could be varied. Optimum detection limits and dynamic calibration ranges were obtained for tubes of medium length having spatial and temporal isothermality. A three-step square waveform in combination with appropriate data acquisition parameters was used, which also rendered good background correction capability. Detection limits for 16 elements and analytical results for five elements in two NBS reference materials are presented.

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来源期刊

Journal of Analytical Atomic Spectrometry

Journal of Analytical Atomic Spectrometry
CiteScore: 6.2
自引率: 25.8%
年发文量: 254

The Journal of Analytical Atomic Spectrometry (JAAS) is the central journal for publishing innovative research on fundamentals, instrumentation, and methods in the determination, speciation and isotopic analysis of (trace) elements within all fields of application. This includes, but is not restricted to, the most recent progress, developments and achievements in all forms of atomic and elemental detection, isotope ratio determination, molecular analysis, plasma-based analysis and X-ray techniques. The journal welcomes full papers, communications, technical notes, critical and tutorial review articles, editorials, and comments, in addition to the Atomic Spectrometry Updates (ASU) literature reviews that are prepared by an expert panel. Submissions are welcome in the following areas, but note this list reflects the current scope and authors are strongly encouraged to contact the Editorial team if they believe that their work offers potentially new and emerging research relevant to the journal remit: Fundamental studies in the following. New and existing sources for atomic emission, absorption, fluorescence and mass spectrometry and those that provide both atomic and molecular information Sample introduction techniques for solids, liquids, gases Improvements in sensitivity, selectivity, precision, accuracy and/or robustness Isotope ratio measurements, including techniques for improving precision and mass bias correction Single channel and multichannel simultaneous detection systems Chemometrics, statistics, calibration techniques and internal standardisation Theoretical and numerical modelling of fundamental processes related to all of the above methodologies Novel or improved methodologies in areas of application including, but not limited to the following. Biosciences, including elemental, speciation and isotopic analysis in biological systems, immunoassays based on metal-labeled antibodies, bio-imaging, and nanoparticle toxicology Geochemistry Environmental science Materials science, including engineered nanoparticles and quantum dots Metrology, including reference materials Forensic analysis Food and agricultural sciences Energy Archaeometry Molecular analysis. Molecular sources for elemental and isotopic analysis Atomic sources for molecular analysis Atomic and molecular techniques simultaneously used for complementary chemical information All contributions are judged on originality and quality of scientific content, and appropriateness of length to content of new science.

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