A VOLTAMMETRIC STUDY OF COPPER-ION BINDING TO THE CELL-SURFACE OF THE MARINE ALGA PHAEODACTYLUM-TRICORNUTUM

被引：1
|
作者：
SCARANO, G
MORELLI, E
机构：
[1] Istituto di Biofisica, Consiglio Nazionale delle Ricerche, Pisa, 56127
来源：
CHEMICAL SPECIATION AND BIOAVAILABILITY | 1993年 / 5卷 / 04期
关键词：
VOLTAMMETRY; COPPER; SURFACE COMPLEXATION; DIATOM; PHAEODACTYLUM-TRICORNUTUM;
D O I：
10.1080/09542299.1993.11083213
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The binding of copper ion to the surfaces of the marine diatom Phaeodactylum tricornutum was studied in seawater pH 8. The cell wall complexing capacity and the average surface complex formation constant were determined by voltammetric titration curves. The presence of biotic particles at a concentration of 2.7 x 10(6) cells mL-1 does not hinder the measurement of stripping currents and the voltammetric fraction of non-reducible copper is the same as the copper bound to the cell surfaces as measured by atomic absorption spectrometry.
引用
收藏
页码：129 / 134
页数：6
相关论文
共 17 条
12