2016
DOI: 10.5935/0103-5053.20160036
|View full text |Cite
|
Sign up to set email alerts
|

Microwave-Induced Combustion of Coal for Further Sulfur Determination by Inductively Coupled Plasma Optical Emission Spectrometry or Ion Chromatography

Abstract: In this work, a method using microwave-induced combustion (MIC) was optimized in order to obtain a fast, simple, efficient and greener sample preparation method for coal digestion and further determination of sulfur by inductively coupled plasma optical emission spectrometry (ICP OES). Accuracy was evaluated by comparison of the results with those obtained using elemental analysis by UV-fluorescence, microwave-assisted acid digestion with determination by ICP OES and by analysis of certified reference material… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1

Citation Types

0
4
0

Year Published

2017
2017
2021
2021

Publication Types

Select...
5

Relationship

1
4

Authors

Journals

citations
Cited by 5 publications
(4 citation statements)
references
References 26 publications
0
4
0
Order By: Relevance
“…The consolidated analytical techniques commonly used for elemental determinations require the dissolution of the solid sample, which involves the use of strong oxidants and high temperatures [7,8]. However, biochar consists of a recalcitrant material that is hardly soluble under normal conditions of wet decomposition, thus requiring more drastic conditions, such as high pressures or decomposition in dry conditions using fluxing agents [9]. As consequence, the use of the aforementioned conditions increases the possibility of systematic errors besides producing large volumes of chemical residues [10].…”
Section: Introductionmentioning
confidence: 99%
“…The consolidated analytical techniques commonly used for elemental determinations require the dissolution of the solid sample, which involves the use of strong oxidants and high temperatures [7,8]. However, biochar consists of a recalcitrant material that is hardly soluble under normal conditions of wet decomposition, thus requiring more drastic conditions, such as high pressures or decomposition in dry conditions using fluxing agents [9]. As consequence, the use of the aforementioned conditions increases the possibility of systematic errors besides producing large volumes of chemical residues [10].…”
Section: Introductionmentioning
confidence: 99%
“…The commercial system for MIC has not been applied to the synthesis of LiNbO 3 . MIC has, however, been used for digestion of food, biological, drugs and environmental samples for further elemental determination by instrumental techniques. In this system, small amounts of reactants and only few simple steps are required, proving to be an interesting alternative for direct synthesis of LiNbO 3 .…”
Section: Resultsmentioning
confidence: 99%
“…Nowadays, faster and more efficient analytical techniques, such as inductively coupled plasma optical emission spectrometry (ICP-OES) and high-resolution continuous-source flame atomic absorption spectrometry (HR-CS FAAS), are used routinely to determine P in fertilizers and other matrices [11,12]. All these techniques, however, require P in solution; thus, solid matrices must be solubilized prior to analysis, which is not a simple task for biochars that are extremely recalcitrant materials [13]. In particular, biochar solubilization generally involves the use of highly oxidizing reagents together with high temperatures and pressures or decomposition in dry conditions using fluxing agents.…”
Section: Introductionmentioning
confidence: 99%