Apparatus for automatically determining the amount of one or mor

Details Apparatus for automatically determining the amount of one or mor Apparatus for automatically determining the amount of one or mor

1978-11-27

1980-09-02

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2734

Patent

active

042205158

ABSTRACT:
A method for automatically determining the amount of one or more substances by stripping voltammetry, said amount ranging from 10.sup.-9 to 10.sup.-5 mol/l (0.1-1000 microgrammes per liter) according to an automatically repeating programme is carried out continuously, not batch-wise, for a time span of a month or more. An apparatus implementing said method preferably comprises a hanging drop electrode and means to renew the hanging drop at the start of each determination. Pretreatment of a physical and/or chemical nature is carried through continuously outside the stripping range. (FIG. 1).

REFERENCES:
patent: 3922205 (1975-11-01), McLean et al.
patent: 4138322 (1979-02-01), Barnes et al.
M. D. Booth et al., Talanta, 17, 1059-1065, (1970).

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