采用液膜电极的托马斯型微电极。

Microelectrode of the Thomas type using a liquid membrane electrode.

作者信息

Stokols M, Corona S K, Pucacco L R, Jacobson H R, Carter N W

机构信息

Department of Internal Medicine, University of Texas Health Science Center, Southwestern Medical School, Dallas 75235.

出版信息

Anal Biochem. 1987 Jun;163(2):530-4. doi: 10.1016/0003-2697(87)90258-2.

DOI:10.1016/0003-2697(87)90258-2

PMID:3662002

Abstract

By replacing the glass-based pH electrode (L. R. Pucacco, S. K. Corona, H. R. Jacobson, and N. W. Carter (1986) Anal. Biochem. 153, 251-261) with a liquid membrane-based pH electrode, a relatively easy-to-manufacture modified Thomas electrode has been developed. The liquid membrane-based modified Thomas electrode can be manufactured without the special equipment (forge) and materials (glass) required to make the glass membrane pH microelectrode (L. R. Pucacco and N. W. Carter (1976) Anal. Biochem. 73, 501-512). The sensitivity (57.4 +/- 0.22 mV/pH unit), response time (20.0 +/- 2.67 s), and electrical resistance (3.48 +/- 0.67 X 10(11) ohm) of this electrode are similar to those of the glass-based version.

摘要

通过用基于液膜的pH电极替代基于玻璃的pH电极（L.R.普卡科、S.K.科罗纳、H.R.雅各布森和N.W.卡特（1986年）《分析生物化学》第153卷，第251 - 261页），开发出了一种相对易于制造的改良型托马斯电极。基于液膜的改良型托马斯电极的制造无需制造玻璃膜pH微电极（L.R.普卡科和N.W.卡特（1976年）《分析生物化学》第73卷，第501 - 512页）所需的特殊设备（锻炉）和材料（玻璃）。该电极的灵敏度（57.4±0.22毫伏/单位pH）、响应时间（20.0±2.67秒）和电阻（3.48±0.67×10¹¹欧姆）与基于玻璃的版本相似。