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- W1932032180 abstract "요오드산 이온의 황이온의 산화에 의해 화학양론적으로 형성되는 요오드이온과 methylene green과의 이온쌍을 1,2-dichloroethane으로 추출하여 656㎚에서 분광광도법에 의해 황이온의 정량법을 확립하였다. 시료기질로부터 분리되어지는 황화수소는 pH 3.5 초산 완충용액과 요오드산 이온이 포함된 용액에 도입되어 완전히 전환되었다. 황이온의 정량범위는 3×1^(-7)~1.2×10^(-5)M (0.0096~0.384㎍/㎖) 였으며, 검출한계는 0.00324㎍/㎖였고, 몰흡광계수는 6.7×10⁴L mole-¹㎝-¹였다. 본 정량법을 하천수 중에 응용하였을 때 5×10^(-6)M 농도에서 상대표준편차는 1.59%로 미량에서 공존이온의 영향을 거의 받지 않고 재현성 있는 결과를 나타내므로 실시료 중에 효과적으로 응용할 수 있으리라 생각된다." @default.
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- W1932032180 date "1994-09-01" @default.
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- W1932032180 title "[화학]Spectrophotometric Determination of Trace Amount of Sulfide by Formation of Iodide and Its Solvent Extraction with Mehtylene Green" @default.
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