| 摘要 |
PURPOSE:To melt perfectly by heating and to analyze concisely a rhodium phase in good accuracy, by melting a plated film of a rhodium-ruthenium alloy together with sodium peroxide or potassium peroxide by heating. CONSTITUTION:A plated film of a rhodium-ruthenium alloy is heated and is melted together with sodium peroxide or potassium peroxide in a nickel crucible. Quantity of the rhodium in the plated film of the rhodium-ruthenium alloy after fusion is found by an atomic absorption spectroscopy. By using said method, the plated film of the rhodium-ruthenium alloy is melted perfectly by heating and also an accurate measurement of rhodium concentration is performed because influences of sodium and potassium brought about an interference at the time of the atomic absorption spectroscopy, are eliminated by carrying out the simultaneous background correction. |
