Methyl Orange에 의한 Benzalkonium Chloride의 Ion Pair 抽出 吸光度定量 = Spectropohotometric Determination of Ion Pair Extraction of Benzalkonium Chloride with Methyl Orange

다국어 초록 (Multilingual Abstract)

Phthalein and azo dyes have been used by forming ion pair agents. Primary, secondary and tertiary amines in aliphatic amines have been fully examined, but aliphatic quaternary amines or their derivatives have not been researched satisfactorily until now.
In this thesis, the author investigated the application of extraction method of organic solvents in forming ion pair between quaternary ammonium salts, and methyl orange (MO).
In the process of laboratory work, MO and benzalkonium choride(BKC) were mixed and added the buffer solution to 10㎖, and then the solution was shaken for 5minutes.
The maximum absorption wavelength of the above stable solution which was extracted with dichloromethane was 420nm. The maximum absorption wavelength of MO aqueous solution was 464nm, and it shifted 44nm toward the long wavelength from 464nm.
In this experiment, the most suitable pH range was 2∼8.
Dichloromethane was the best of all other solvents as than 1.2-dichloroethane, chloroform, benzene, nitrobenzene and carbon tetrachloride in the extraction solvents of ion pair which was formed between MO and BKC.
However, MO has never been extracted with any kinds of solvents either.
By using the method of continuous variation, the author investigated that the mole ratio of reaction products formed between MO and BKC was 1:1 ratio.
When made the BKC calibration curve to MO in best experiment condition, the Lambert-Beer's law was obeyed in the range of BKC. concentration 3×10^-5∼1.0×10^-4 M.