Atomic absorption
Flame Atomic Absorption Spectrometry
... Molecular species in the flame may absorb strongly. Molecular absorption is most common at wavelengths below about 350 nm. To check for non-atomic absorption at the barium wavelength use the ...
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An electrochemical flow cell for permanent modification of graphite tube employed in atomic absorption.
... AN ELECTROCHEMICAL FLOW CELL FOR PERMANENT MODIFICATION OF GRAPHITE TUBE EMPLOYED IN ATOMIC ABSORPTION. A flow cell assembled on the original geometry of a graphite tube to achieve permanent chemical ...
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Integration of analytical techniques and undergraduate laboratory in instrumental analysis: use of an atomic absorption spectrometer for molecular absorption measurements.
... AN ATOMIC ABSORPTION SPECTROMETER FOR MOLECULAR ABSORPTION ...molecular absorption of chromate and dichromate ions using an atomic absorption ...molecular absorption of ...
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Determination of Lead in Human Teeth by Hydride Generation Atomic Absorption Spectrometry
... To the best of our knowledge there are no published data dealing with a matrix modified hydride generation atomic absorption spectrometry determination of microgram amounts of lead in whole human teeth. ...
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Comparison of different sample preparation methods for platinum determination in cultured cells by graphite furnace atomic absorption spectrometry
... types, atomic absorption spectrometry (AAS), high performance liquid chromatography (HPLC) and inductively coupled plasma-mass spectrometry (ICP-MS) are frequently employed in most research ...flame ...
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Evaluation of heating programs for electrothermal atomic absorption spectrometry using a tungsten coil.
... EVALUATION OF HEATING PROGRAMS FOR ELECTROTHERMAL ATOMIC ABSORPTION SPECTROMETRY USING A TUNGSTEN COIL. A tungsten coil atomizer was used to investigate the effect of heating programs with constant or ...
3
Evaluation of internal standardization in atomic absorption spectrometry using correlation graphs.
... EVALUATION OF INTERNAL STANDARDIZATION IN ATOMIC ABSORPTION SPECTROMETRY USING CORRELATION GRAPHS. The use of an internal standard (IS) in ET AAS can be considered a new trend after the commercial ...
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Electrodeposition of iridium in graphite tube as permanent chemical modifier in atomic absorption spectrometry.
... ELECTRODEPOSITION OF IRIDIUM IN GRAPHITE TUBE AS PERMANENT CHEMICAL MODIFIER IN ATOMIC ABSORPTION SPECTROMETRY. A tubular electrochemical flow-cell for iridium deposition on the inner surface of pyrolytic ...
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Atomic Absorption Spectrophotometric Determination of Lead in White Rice
... using Atomic Absorption Spectroscopy and determine whether the amount of lead in the rice samples conform to the maximum acceptable level in food permitted by Joint FAO/WHO Expert Committee on Food ...
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Atomic absorption spectrometry: the way for multielement determinations.
... ATOMIC ABSORPTION SPECTROMETRY: THE WAY FOR MULTIELEMENT ...of atomic absorption (AAS), tracing a line of the historical events in its development and its establishment as a multielement ...
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Solid sampling graphite furnace atomic absorption spectrometry: a review.
... FURNACE ATOMIC ABSORPTION SPECTROMETRY: A ...furnace atomic absorption ...furnace atomic absorption spectrometry in trace element determination in many kinds of samples, ...
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Electrothermal atomic absorption spectrometry with tungsten coil: a critical re-view.
... O crescente interesse na utilização da técnica de ETAW-AAS para a determinação de elementos ao nível de traços originou a pre- sente revisão da literatura, na qual diferentes trabalhos s[r] ...
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Solid Sampling in Electrothermal Atomic Absorption Spectrometry Using Commercial Atomizers
... medium by the addition of chemical modifiers and wetting agents, and antifoam agents); (iv) the mixing and homogeni- zation of the slurry (i.e., the use of stabilizing agents[r] ...
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Internal standardization in atomic absorption spectrometry.
... Em 1979, Takada e Nakano desenvolveram um espectrômetro multicanal e aplicaram o conceito da padronização interna em espectrometria de absorção atômica com atomização eletrotérmica para [r] ...
4
Determination of phosphorus in steel samples by graphite furnace atomic absorption spectrometry.
... Conclui-se que o ferro, presente no aço, atua como eficiente modificador para o fósforo, tanto em meio de ácido nítrico como no meio de ácidos clorídrico e perclórico, não havendo a nece[r] ...
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Gas chromatography coupled with atomic absorption spectrometry.
... Baxter e colaboradores 50 realizaram um estudo do desempe- nho do acoplamento da cromatografia gasosa com a absorção atômica. Derivaram expressões para descrever as mudanças na.. sensib[r] ...
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Eclet. Quím. vol.30 número3
... tetrahydrofuran/water, at 396 nm]. Under such optimized experimental conditions, it is possible to determine iron in the concentration range from 0.5 to 2 ppm (15-65% T for older equipments, quartz cells of 1.00 cm). ...
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J. Braz. Chem. Soc. vol.12 número1
... determination, atomic absorption spectrometry is still the method of choice for routine determination of a large number of ...elements. Atomic absorption spectrometry with hydride generation ...
5
Quím. Nova vol.36 número1
... The metal ions in the aqueous phase were complexed with DDTC. A mixture of 100 µL 1-undecanol (as the extraction solvent) and 200 µL acetone (as the dispersive solvent) was then rapidly injected into the aqueous sample. ...
6
J. Braz. Chem. Soc. vol.14 número2
... for atomic absorption spectrometry (AAS), using a high-intensity xenon short-arc lamp as continuum radiation source, a high-resolution double- echelle monochromator and a CCD array detector, providing a ...
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