DETERMINATION OF THE DIFFUSION-COEFFICIENTS OF CATECHOLAMINES BY POTENTIAL STEP CHRONOAMPEROMETRY
DETERMINATION OF THE DIFFUSION-COEFFICIENTS OF CATECHOLAMINES BY POTENTIAL STEP CHRONOAMPEROMETRY
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DOI：
10.1021/je00057a002
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发表时间：
1989-07-01
期刊：
影响因子：
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通讯作者：
ANJO, DM
中科院分区：
文献类型：
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作者：
NOWINSKI, SA;ANJO, DM
本文用电位阶跃计时电流法测定了20 ℃时若干儿茶酚胺及其有关化合物在铂电极上的扩散系数。所有的化合物表现良好，没有聚合或成膜的迹象。扩散系数在0.6 × 10 - 5cm 2 s-1的范围内，这对于这种尺寸的分子是典型的。结果的平均变异系数为±6%。
The diffusion coefficients for a number of catecholamines and a related compound have been determined at20 C by use of potential step chronoamperometry at a planar platinum electrode. All of the compounds behaved well with no sign of polymerization or filming. The diffusion coefficients were In the region of 0.6 X 10™ 5 cm2 s~ 1, which Is typical for molecules of this size. The results had a±6% average coefficient of variation.