- 作者: 林振霖
- 作者服務機構: Chemistry Department, National Taiwan College of Education, Changhua, Taiwan, R.O.C.
- 中文摘要: A procedure is described for the trace analysis of nickel using the liquid-liquid extraction of nickel acenaphthenequinone dioxime complex with molten naphthalene followed by solid-liquid separation. Nickel complex cannot be extracted into any non-aqueous organic solvents, but can be quantitatively extracted into molten naphthalene. It is very stable at high temperature and is dissolved in the mixed solvent (HNO/sub 3/-DMF). The absorbance of the solution was measured at 231.5nm against a reagent blank. Beer's law is followed in the concentration range of 5-100mg of nickle in 10ml of the final solution. The sensitivity for 1% absorption is 0.155mg/ml nickel. The relative standard deviation is 1.0% for ten replicate determinations of 60mg of nickel. The interference of various ions has been studied and the method has been applied to the determination of nickel in aluminium alloys.
- 英文摘要: --
- 中文關鍵字: Atomic absorption spectrophotometry; naphthalene extraction; acenaphthenequinone dioxime (ANDO); nickel analysis in alloys.
- 英文關鍵字: Atomic absorption spectrophotometry; naphthalene extraction; acenaphthenequinone dioxime (ANDO); nickel analysis in alloys.