Comparison of Different Digestion Methods for Total Decomposition of Siliceous and Organic Environmental Samples

Sun, Yuh‐Chang; Chi, P; Shiue, Mei-yun

doi:10.2116/analsci.17.1395

Cited by 65 publications

(27 citation statements)

References 15 publications

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“…It is apparent that there is heavy dissolution (and hence removal) of the metal binder components during corrosion, for each of the cermet systems, while the TiC is essentially unaffected. It is also notable that the O content increases significantly, from essentially nothing in the as-fabricated cermets, confirming the formation of a surface oxide during corrosion [34][35][36]. These analyses confirm that there is selective dissolution of the binder, supporting the ICP-OES data presented in Figures 9 and 10, and the prior SEM observations (Figures 7 and 8).…”

Section: Post-corrosion Chemical Analysissupporting

confidence: 77%

“…To determine the concentrations of various elemental species released from the cermets during testing, the solutions remaining after the electrochemical tests were examined using inductively coupled plasma optical emission spectroscopy (ICP-OES; Varian Vista Pro (Radial View), Varian Inc., Mulgrave, Australia) [35][36][37]. The post-test solutions were filtered using a Millipore vacuum filtration system (with a 1.0-µm pore size), to separate any fine particulate material released from the corroding surfaces, which could then be analysed independently from any dissolved elemental species.…”

Section: Electrochemical Testingmentioning

confidence: 99%

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The Aqueous Electrochemical Response of TiC–Stainless Steel Cermets

Onuoha

Russell

Kipouros

et al. 2018

Metals

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A family of TiC-stainless steel ceramic-metal composites, or cermets, has been developed in the present study, using steel grades of 304 L, 316 L, or 410 L as the binder phase. Melt infiltration was used to prepare the cermets, with the steel binder contents varying between 10-30 vol. %. The corrosion behaviour was evaluated using a range of electrochemical techniques in an aqueous solution containing 3.5 wt. % NaCl. The test methods included potentiodynamic, cyclic, and potentiostatic polarisation. The corroded samples were subsequently characterised using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDS), while the post-corrosion solutions were analysed using inductively coupled plasma optical emission spectroscopy (ICP-OES) to determine the residual ionic and particulate material removed from the cermets during electrochemical testing. It was demonstrated that the corrosion resistance was enhanced through decreasing the steel binder content, which arises due to the preferential dissolution of the binder phase, while the TiC ceramic remains largely unaffected. Increasing corrosion resistance was observed in the sequence TiC-304 L > TiC-316 L > TiC-410 L.

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Section: Post-corrosion Chemical Analysissupporting

confidence: 77%

Section: Electrochemical Testingmentioning

confidence: 99%

The Aqueous Electrochemical Response of TiC–Stainless Steel Cermets

Onuoha

Russell

Kipouros

et al. 2018

Metals

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“…Total contents of heavy metals in raw/pretreated fly ASH Total content of heavy metal was determined by treating 0.2 g sample with HNO 3 /HClO 4 /HF acid mixture digestion method at about 120°C until the digested solution was clear (Sun et al, 2001). Reagent blanks and analytical duplicates were included to ensure the accuracy and precision of analysis.…”

Section: Chemical Analysismentioning

confidence: 99%

Can washing-pretreatment eliminate the health risk of municipal solid waste incineration fly ash reuse?

Wang

Zhang

Yang

et al. 2015

Ecotoxicology and Environmental Safety

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“…Samples (approximately 0.2 g of sediment) were leached with nitric acid (HNO 3 ), hydrofluoric acid (HF) and hydrogen peroxide (H 2 O 2 ) under microwave action following the procedures tested by Sun et al (2001). Element contents were determined by optical emission spectrometry with inductively coupled plasma (ICP-OES/Varian 710ES) at the Oceanographic Institute of University of São Paulo (Brazil).…”

Section: Major Elementsmentioning

confidence: 99%