Direct solid sampling by flame atomic absorption spectrometry: determination of manganese in coal samples
Erico M.M. Flores,José N. G. Paniz,Ana Paula Fleig Saidelles,Juliano Smanioto Barin,Valderi L. Dressler,Edson I. Muller,Adilson Ben da Costa +6 more
TL;DR: In this article, a new device for the direct solid analysis by flame atomic absorption spectrometry was investigated as an alternative technique for the determination of trace elements in coal, and the potential application of the proposed procedure for determination of manganese was investigated.
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Abstract: A new device for the direct solid analysis by flame atomic absorption spectrometry was investigated as an alternative technique for the determination of trace elements in coal. The potential application of the proposed procedure for the determination of manganese was investigated. Ground coal test samples were weighed directly into polyethylene vials and carried as a dry aerosol to a slotted quartz vaporization cell placed between the flame burner and optical path. The transient signals obtained were totally integrated in 1 second. The effect of operating conditions on the analytical signal was investigated. Background signals were always low and a Mn characteristic mass of 1.9 ng was found. Results were considered satisfactory regarding to both accuracy (between 97.5 and 103.2%) and precision (RSD better than 6%). The proposed system is simple and can be easily adapted to any conventional atomic absorption spectrometers allowing the analysis of more than 80 test samples in an hour.
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Citations
Determination of Lead in Coal Using Direct Solid Sampling and High-Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry
Daniel L. G. Borges,Alessandra Furtado da Silva,Adilson J. Curtius,Bernhard Welz,Uwe Heitmann +4 more
TL;DR: In this paper, a method was developed for the determination of Pb in coal using direct solid sampling (SS) and high-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GF AAS).
36
Microwave-induced combustion coupled to flame furnace atomic absorption spectrometry for determination of cadmium and lead in botanical samples.
Juliano Smanioto Barin,Fabiane Regina Bartz,Valderi L. Dressier,José N. G. Paniz,Erico M.M. Flores +4 more
TL;DR: A procedure based on microwave-induced combustion coupled to flame furnace (FF) atomic absorption spectrometry (FF-AAS) was used for analysis of solid samples to demonstrate the potential of the proposed procedure for trace analysis.
19
Use of paper capsules for cadmium determination in biological samples by solid sampling flame atomic absorption spectrometry
Adilson Ben da Costa,Julio Cezar Paz de Mattos,Edson I. Muller,José N. G. Paniz,Valderi L. Dressler,Erico M.M. Flores +5 more
TL;DR: In this paper, a new device was applied for direct solid sampling flame atomic absorption spectrometry, which was used for trace determination of cadmium in biological samples (bovine and chicken liver).
10
Solid sampling coupled to flame furnace atomic absorption spectrometry for Mn and Ni determination in petroleum coke
TL;DR: A solid sampling flame furnace atomic absorption spectrometry (SS-FF-AAS) system was developed for Mn and Ni determination in petroleum coke as discussed by the authors, which was a quartz cell with two perpendicular tubes (T-shaped tubes), positioned above the burner.
9
A Glimpse of Recent Developments in Brazilian Analytical Chemistry
Sergio Luis Costa Ferreira,Pedro Afonso de Paula Pereira,Joaquim A. Nóbrega,Orlando Fatibello-Filho,Mário A. Feres,Boaventura F. Reis,Roy E. Bruns,Francisco Radler de Aquino Neto +7 more
TL;DR: A review highlighting some relevant contributions proposed by Brazilian analytical research groups mainly after 2004 is presented in this paper, with emphasis on major advancements and critical needs, and a glimpse of the Brazilian contributions shows the stage of development of analytical chemistry in Brazil.
4
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Atomic absorption spectrometry
Bernhard Welz
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TL;DR: In this paper, the authors present a survey of the application of atomic absorption spectrometers in a wide range of applications, including radiation sources, atomizers, and measurement and readout.