Detecting trace lead in gasolines

Details Detecting trace lead in gasolines Detecting trace lead in gasolines

1978-05-22

1979-05-08

Tung, T.

Chemistry: electrical and wave energy

Processes and products

G01N 2746

Patent

active

041535170

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: 3653840 (1972-04-01), Silas
patent: 3960690 (1976-06-01), Olson
patent: 4012290 (1977-03-01), Olson
patent: 4012291 (1977-03-01), Olson et al.
patent: 4050995 (1977-09-01), Bredeweg

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