- 作者: 孫炳榕; 潘貫; 游復熙; 黃德順
- 作者服務機構: Contribution from the Department of Chemistry, National Taiwan University
- 中文摘要:
Gallein was polarographically studied in 40% ethanol solutions containing sodium carbonate or poassium biphthalate buffers at varying pH's. A well-defined polarographic wave with E/sub 1/2/ ranging from -0.50 to -0.70 volt (S.C.E.) was observed in the pH region 2~6.6 while two waves with E1/2 at -1.2 and -1.5 volts (s. C. E.) were observed in the pH region of 8.3 to 10.2 at 25℃.
The former corresponds to a one-electron reversible reaction while the latter ones may be irreversible.
Gallein was polarographically determined in 40% ethanol solution over the concentration range of 3×10¯4 to 2×10¯5 molar. - 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --