Chemistry: electrical and wave energy – Processes and products – Vacuum arc discharge coating
Patent
1979-01-31
1980-08-05
Kaplan, G. L.
Chemistry: electrical and wave energy
Processes and products
Vacuum arc discharge coating
324425, 422 64, G01N 2746
Patent
active
042160693
ABSTRACT:
An improved galvanic detector for measuring trace amounts of tetralkyl lead in gasoline having a sample holder mounted in a turntable. A disc of dried porous material is placed in the holder and a small sample of gasoline placed on the porous material and allowed to evaporate for a pre-set time to flash off the olefins. The turntable is then rotated to pass the disc over the sensing electrode of the galvanic cell and the peak value of current signal produced by the galvanic cell is measured and recorded.
REFERENCES:
patent: 2768879 (1956-10-01), Hewson
patent: 2879141 (1959-03-01), Skeggs
patent: 3499733 (1970-03-01), Abbott et al.
patent: 3960690 (1976-06-01), Olson
Kaplan G. L.
Shell Oil Company
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