- 作者: 何武雄 ; 林碧
- 作者服務機構: 中興大學化學系
- 中文摘要: Ion pairs formed from suitable cationic dye and anionic surfactant in water were separated by solvent extraction. The extracts were used subsequently for spectrophotometric determinations. The extraction of ion pairs with various combinations is described. Of the dyes and solvents examined, ethyl violet and p-xylene are the most useful combination as the cationic dye and extraction solvent. The extracts are determined spectrophotometrically at 611.5nm; the molar absorptivity is 1.01*10/sup 5 //M-cm. The detection limit is 1.4ppb in water. The method is simple, rapid and sensitive. It can also be applied to the determination of anionic surfactants in sea water.
- 英文摘要: --
- 中文關鍵字: Anionic Surfactant; Ion Pair; Extraction; Spectrophotometry; Molar Absorption Coefficient; Detection Limit
- 英文關鍵字: 陰離子界面活性劑;離子對;萃取;分光光度學;莫爾吸收係數;偵測極限