Gravimetric monitoring of adsorption behavior of tetrakis(methylpyridiniumyl)porphyrin onto quartz crystal surface using an electrode-separated piezoelectric sensor

被引：1

作者：

Shen, DZ ^{[1
]}

Xie, QJ

Kang, Q

Xue, YH

机构：

[1] Shandong Univ, Coll Chem, Jinan 250100, Peoples R China

[2] Hunan Normal Univ, Dept Chem, Changsha 410081, Peoples R China

[3] Shandong Inst Min & Technol, Taian 270019, Peoples R China

来源：

MIKROCHIMICA ACTA | 1998年 / 128卷 / 3-4期

关键词：

porphyrin; adsorption; quartz; piezoelectric; sensor;

D O I：

10.1007/BF01243054

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The adsorption behavior of 5,10,15,20-tetrakis(4-N-methylpyridiniumyl)-porphyrin (H2TMPyP) from aqueous solutions onto a quartz crystal interface was investigated in situ using an electrode-separated piezoelectric sensor (ESPS). With H2TMPyP adsorbed onto quartz crystal surface of the ESPS, its oscillating frequency decreases linearly with increasing adsorption amount. The adsorption densities obtained in the ESPS method were greater than those determined in a solution depletion method. The influence of surface roughness of quartz crystal and bulk solution properties on the measurement of adsorption density in the ESPS method was discussed.

引用

页码：229 / 233

页数：5

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