Sample preparation techniques based on combustion reactions in closed vessels — A brief overview and recent applications

Flores, Érico M.M.; Barin, Juliano Smanioto; Mesko, Márcia F.; Knapp, Günter

doi:10.1016/j.sab.2007.04.018

Cited by 127 publications

(127 citation statements)

References 135 publications

Supporting

Mentioning

125

Contrasting

Unclassified

Order By: Relevance

“…Either solid or liquid samples can be combusted with a relative high sample mass (0.5 g to 1.5 g) in comparison to other combustion methods [8]. The method has been used for the simultaneous determination of elements (Br, F, Cl, and S) in different types of samples (coal, oil, shredder residues, and diesel) and obtained a high efficiency [4], [9], [10].…”

Section: Introductionmentioning

confidence: 99%

“…Generally contamination is considered to be low, but are present in cases where the bomb is not cleaned effectively between different types of samples and if the absorbing solution contains trace elements. Only basic absorbing solutions are considered with H 2 O 2 and carbonates being highly preferred due to its absorption ability of sulphur compounds [5], [8]. The overall method is considered to be fast but an additional equilibrium period allow for extra absorption [1].…”

Section: Introductionmentioning

confidence: 99%

“…OFC is considered as a simple, rapid, and economical procedure due to being very cost-effective and accurate, but the small sample mass and sample capacity reduce the overall effectiveness due to incomplete oxidation [8], [11].…”

Section: Introductionmentioning

confidence: 99%

“…MIC operates in a similar manner to the bomb based on basic operating principles [3], [8], [12].The method showed a relative high efficiency [13] with multiple element extractions [3].This method is also preferred for samples that are difficult to digest or if volatile solids are to be preserved [14]due to its ability to handle acids as absorbing solutions, unlike the bomb [8], [15]. But the method also pose to be dangerous for the oxidation of organic fuels [11].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Development and Evaluation of a Novel Sulphur Analysis Method

2016

International Conference on Advances in Science, Engineering, Technology and Natural Resources (ICASETNR-16) Nov. 24-25, 2016 P

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Development and Evaluation of a Novel Sulphur Analysis Method

2016

International Conference on Advances in Science, Engineering, Technology and Natural Resources (ICASETNR-16) Nov. 24-25, 2016 P

View full text Add to dashboard Cite

show abstract

“…Combustion methods utilizing closed vessels (combustion bomb and oxygen flask) allow the complete conversion of carbon and hydrogen to carbon dioxide and water, thus representing a convenient and effective means of obtaining solubilized samples with minimum residual organic matrix while avoiding some difficulties for subsequent analyte determinations. 16 A digestion method combining the advantages of classical combustion systems with those using closed systems heated by microwave radiation was recently proposed. 17 This microwave-induced combustion (MIC) method has been used for the digestion of organic samples in closed quartz vessels pressurized with oxygen and ignited by the application of microwave radiation.…”

mentioning

confidence: 99%

Determination of Trace Elements in Fluoropolymers after Microwave-Induced Combustion

et al. 2012

View full text Add to dashboard Cite

Access and use of this website and the material on it are subject to the Terms and Conditions set forth at NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=21270354&lang=en http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/ctrl?action=rtdoc&an=21270354&lang=fr READ THESE TERMS AND CONDITIONS CAREFULLY BEFORE USING THIS WEBSITE.http://nparc.cisti-icist.nrc-cnrc.gc.ca/npsi/jsp/nparc_cp.jsp?lang=en Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1021/ac3029213Analytical Chemistry, 85, 1, pp. 374-380, 2012-11-21 ABSTRACT: An effective approach to the digestion of fluoropolymers for the determination of Ag, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, and Ni impurities has been developed using microwave-induced combustion (MIC) in closed quartz vessels pressurized with oxygen. Samples that were examined included the following: polytetrafluorethylene (PTFE); polytetrafluoroethylene with an additional modifier, perfluoropropylvinylether (PTFE-TFM); and fluorinated ethylene propylene (FEP). A quartz device was used as a sample holder, and the influence of the absorber solution was evaluated. Determination of trace elements was performed by inductively coupled plasma−optical emission and mass spectrometry. Neutron activation analysis (NAA) was used for validation purposes. Results were also compared to those obtained using microwave-assisted acid extraction in high-pressure closed systems. Dilute nitric acid (5 mol L −1 ), which was selected as the absorbing medium, was used to reflux the sample for 5 min after the combustion. Using these conditions, agreement for all analytes was better than 98% when compared to values determined by NAA. The residual carbon content in the digests was lower than 1%, illustrating the high efficiency of the method. Up to 8 samples could be digested within 30 min using MIC, providing a suitable throughput, taking into account the inertness of such samples. Determination of Trace Elements in Fluoropolymers after

show abstract

Flame and Graphite Furnace Atomic Absorption Spectrometry in Environmental Analysis

Sperling

2022

Encyclopedia of Analytical Chemistry

View full text Add to dashboard Cite

Atomic absorption spectrometry (AAS) is a well‐established technique for the quantitative determination of elements in environmental materials at trace and ultratrace levels. AAS is an optical atomic spectrometric technique based on the measurement of the specific absorption originated from the free, unionized atoms in the gas phase. For transferring the analyte to free atoms, different types of atomizers are in use, out of which the flame and the graphite furnace are the most often used atomizers. Typical detection limits of flame AAS (FAAS) are of the order of 1–100 μg L −1 , making it a perfect tool for the determination of minor and trace elements, at least for contaminated samples. Graphite furnace AAS (GFAAS), offering detection limits which are about a factor of 20–200 lower than for FAAS, is the standard method for many trace elements especially for background values, and for unpolluted samples, such as freshwater and biological materials. AAS in its conventional configuration is a single element technique, which has to be used in a sequential mode when more than one element has to be determined. However, there are commercial instruments available, that can be used for the determination of six to eight elements simultaneously. While most manufacturers provide instruments working with line sources, one manufacturer has commercialized high‐resolution instruments working with continuum sources (HRCS‐AAS).

show abstract

Sample preparation techniques based on combustion reactions in closed vessels — A brief overview and recent applications

Cited by 127 publications

References 135 publications

Development and Evaluation of a Novel Sulphur Analysis Method

Development and Evaluation of a Novel Sulphur Analysis Method

Determination of Trace Elements in Fluoropolymers after Microwave-Induced Combustion

Flame and Graphite Furnace Atomic Absorption Spectrometry in Environmental Analysis

Contact Info

Product

Resources

About