Polarographic apparatus

Details Polarographic apparatus Polarographic apparatus

1977-07-12

1979-02-06

Tung, T.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2734

Patent

active

041383222

ABSTRACT:
A polarographic analysis cell is described for analysis of a continuously flowing stream of liquid using a dropping mercury cathode technique. In a cell having an inlet and an outlet for throughflow of liquid, a shielded dropping mercury cathode is mounted, the cathode shield having the configuration of a funnel having an upper cup portion and a lower stem portion, the lower extremity of the stem terminating in a laterally-directed orifice which prevents entry into the shield of gas bubbles issuing from a gas diffuser also provided in the cell to diffuse deoxygenating inert gas into the cell during use.

REFERENCES:
patent: 2500284 (1950-03-01), Hetrovsky
patent: 3410763 (1968-11-01), Capuano
patent: 3421989 (1969-01-01), Haagen-Smit
patent: 3871985 (1975-03-01), Crippen et al.
"Analytical Chemistry", vol. 28, No. 4, Apr. 1956, pp. 630, 636-637.
"Analytical Chemistry", vol. 26, No. 7, Jul. 1954, pp. 1121-1123.
"Analytical Chemistry", vol. 26, No. 8, Aug. 1954, pp. 1351-1354.
"Techlink", No. 1887, Feb. 24, 1976.
"Chemistry & Industry"; Jan. 17, 1948; pp. 37 & 38.

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