共 50 条
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- [38] Hydrogen peroxide in the colorimetric determination of iron by thiocyanate INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1939, 11 : 0502 - 0503
- [40] Colorimetric determination of silica in the presence of phosphates and iron INDUSTRIAL AND ENGINEERING CHEMISTRY-ANALYTICAL EDITION, 1930, 2 : 0276 - 0283