DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김충현 | ko |
dc.contributor.author | Woo, Seong-Ihl | ko |
dc.contributor.author | 전성환 | ko |
dc.date.accessioned | 2013-03-02T23:40:31Z | - |
dc.date.available | 2013-03-02T23:40:31Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1999-01 | - |
dc.identifier.citation | 공업화학, v.10, no.4, pp.568 - 575 | - |
dc.identifier.issn | 1225-0112 | - |
dc.identifier.uri | http://hdl.handle.net/10203/76049 | - |
dc.description.abstract | Two different digestion procedures for the simultaneous determination of major and platinum-group element(PGE) in spent automobile catalysts containing PGE and silicates by inductively coupled plasma atomic emission spectrometry(ICP-AES) are compared. Combinations of mixed aids using HF, HNO3, HCl, HClO4, H2O2, and H3BO3 are utilized for the hot plate dissolution method and the closed-vessel microwave digestion method, The latter method has been shown to be relatively superior in terms of recovery, analysis time, and amount of aqua regia (3 parts HCl+ part HNO3 required to dissolve PGE in comparison with conventional open vessel hot-plate dissolution. The best results were drawn from the following conditions: In closed Teflon PFA vessels under microwave heating with temperature/pressure regulation, a 0.25 g portion of sample was digested in 2 mL of HF, 2 mL of HNO3 and 6 mL of HCl under the pressure of 200 psi(13.79 bar) at 180 ℃ for 1 hr, followed by a second digestion stage with 16 mL of 5 %(w/v) boric acid under the pressure of 20 psi(1.38 bar) at 100 ℃ for 10 min. After the microwave heating, the sample was post-treated with 10 mL of aqua regia twice by hot-plate heating. This condition gives the PGE recovery within 85-110 % and the relative standard deviations within 2 %. The method developed can therefore be regarded as an alternative method for routine analysis of spent automobile catalysts. | - |
dc.language | Korean | - |
dc.publisher | 한국공업화학회 | - |
dc.title | 백금족 금속과 규산염을 포함하는 모노리스형 자동차 폐촉매의 ICP - AES 분석을 위한 극초단파 분해 전처리 기법의 응용 | - |
dc.title.alternative | Application of Microwave Digestion Pretreatment Techniques for ICP - AES Analysis of Used Monolithic Automobile Catalysts Having Platinum Group - Metals and Silicates | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.citation.volume | 10 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 568 | - |
dc.citation.endingpage | 575 | - |
dc.citation.publicationname | 공업화학 | - |
dc.contributor.localauthor | Woo, Seong-Ihl | - |
dc.contributor.nonIdAuthor | 김충현 | - |
dc.contributor.nonIdAuthor | 전성환 | - |
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