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    • 1. 发明授权
    • Method of electrically measuring the concentration of acids
    • 电测量酸浓度的方法
    • US4988418A
    • 1991-01-29
    • US323534
    • 1989-03-14
    • Fritz BeckHolger KrohnRainer WagnerEberhard Nann
    • Fritz BeckHolger KrohnRainer WagnerEberhard Nann
    • G01N27/416
    • G01N27/416
    • In a method for the electrical measurement of the concentration of acids a measurement electrode (11) consisting at least predominantly of crystalline graphite is arranged in an acid (12) having anions which form graphite intercalation compounds with graphite. The measurement electrode (11) is then intercalated by generating in the measurement electrode (11), at a variable positive potential, a current of such a size that the anions of the acids (12) can from graphite intercalation compounds with the graphite. The current is maintained until the intercalation compounds have formed at the surface. The potential at the measurement electrode (11) is then measured and used as a measure for the acid concentration. The measurement electrode (11) is subsequently deintercalated again.
    • 在用于电测量酸浓度的方法中,至少主要由结晶石墨构成的测量电极(11)被布置在具有与石墨形成石墨插层化合物的阴离子的酸(12)中。 然后通过在测量电极(11)中以可变的正电位产生如下尺寸的电流来插入测量电极(11),该电流的大小使得酸(12)的阴离子可以与石墨插入化合物。 保持电流直到在表面形成插层化合物。 然后测量测量电极(11)的电位,并将其用作酸浓度的量度。 测量电极(11)随后再次脱嵌。