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Dissolution of vanadium pentoxide using microwave digestion system for determination of vanadium by ICP-AES
Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
2010, v.23 no.6, pp.511-517
https://doi.org/10.5806/AST.2010.23.6.511
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(2010). Dissolution of vanadium pentoxide using microwave digestion system for determination of vanadium by ICP-AES. Analytical Science and Technology, 23(6), 511-517, https://doi.org/10.5806/AST.2010.23.6.511
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Abstract
황산 제조 및 그 외에 많은 유기화합물을 산화시키는 촉매제로 널리 이용되고 있는 공업용 오산화바나듐의 용해방법을 연구하였다. 오산화바나듐 시약은 왕수-H2O2-HF로 완전히 용해되었으나 판상모양의 오산화바나듐 시료는 혼합산에 완전히 용해되지 않아 시료 전처리 방법을 확립할 필요가 있다. 따라서 본 연구에서는 산 처리법과 용융법을 혼용한 방법 및 마이크로파 용해 장치를 이용한 용해법을비교 분석하여 바나듐화합물의 용해성을 조사하였다. 바나듐 화합물은 왕수, 플루오르화수소산 및 과산화수소의 혼합산으로 녹이는 것이 최적이었으며, 두 용해 방법 중 마이크로파 용해 장치를 이용한 용해법이 분석의 신속성을 고려하면 보다 유용한 방법으로 판단되었다. 마이크로파 용해 장치로 용해한 다음유도 결합 플라스마 원자방출분광법으로 측정한 결과 바나듐산화물(V2O5) 함량은 97.9±0.9%이었다.
- keywords
- Vanadium pentoxide, microwave digestion system, acid-fusion, ICP-AES
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