4-(2-Pyridylazo)-resorcinol에 의한 Gallium 및 Indium의 흡광 광도정량 = Spectrophotometric Determination of Gallium and Indium with 4-(2-Pyridylazo)-resorcinol

다국어 초록 (Multilingual Abstract)

Several condition for the spectrophotometric determination of gallium and indium with 4-(2-Pyridylazo)-resorcinol [PAR] have been studied.
The color solution of gallium-PAR, indium-PAR shows a maximum absorption at 504nm, 510nm, and follow Beer's law over a range of a to 15㎍/25ml, 2 to 30㎍/25ml of gallium and indium
The molar extinction coeffecient at 504nm, 510nm are estimated to be 102,000, 86, 400. The absorbancy of the solution is kept constant for 20hrs and is not affected by temperature between 13~35℃.
Since iron(Ⅲ), cobalt, copper, bismuth, zinc. cadmium, aluminium interfere more or less, the seperation of gallium and indium from some of the above ions by means of ether extraction has been studied.
the constitution of the complex examined by continuous variation method is that the molar ratio of gallium:PAR, indium-PAR are 1:2.

목차 (Table of Contents)

• 1. 서론
• 2. 시약 및 장치
• 2-1. 시약
• 2-2. 장치
• 3. 실험방법
• 3-1. 표준용액 및 완충용액 조제
• 3-2. 조작법
• 4. 결과 및 고찰
• 4-1. 흡수곡선.
• 4-2. pH의 영향.
• 4-3. 시약 농도의 영향
• 4-4. 온도의 영향
• 4-5. 呈色의 안정성.
• 4-6. 검량선.
• 4-7. 조성비의 검토
• 4-8. 방해 이온에 관해서
• 5. 결론