DETERMINATION OF THE SPECIFIC SURFACE-AREA OF SILICA-GEL BY ON-COLUMN TITRATION WITH HYDROCHLORIC-ACID

被引：8

作者：

TAKEUCHI, T

MIWA, T

机构：

[1] Faculty of Engineering, Gifu University, Gifu, 501-11

来源：

ANALYTICA CHIMICA ACTA | 1993年 / 282卷 / 03期

关键词：

LIQUID CHROMATOGRAPHY; TITRIMETRY; SILANOL GROUPS; SILICA GEL PACKINGS; SPECIFIC SURFACE AREA;

D O I：

10.1016/0003-2670(93)80121-Z

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Specific surface areas of silica gel packings could be determined by an on-column acid-base titration method. Silica gel materials packed in microcolumns were equilibrated with sodium hydrogencarbonate, followed by titration with hydrochloric acid. The effluents from the columns were monitored by an electrical conductivity detector and the end-points were determined from the breakthrough curves. The breakthrough volume was linearly dependent on the surface area per unit volume of the packings or on the total surface area of the column.

引用

页码：565 / 570

页数：6

共 13 条

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