Contamination text

Details Contamination text Contamination text

1995-04-24

1998-11-10

Noori, Max H.

Measuring and testing

Sampler, sample handling, etc.

With constituent separation

736114, 436 29, G01N 100

Patent

active

058346554

ABSTRACT:
A method for testing petroleum hydrocarbon contamination in which method a sample is mixed with an alkyl halide extraction solvent. Subsequently the solvent extraction phase is separated, and a Friedel-Crafts Lewis acid catalyst is added thereby obtaining a colored reaction product in the solvent extraction phase, the color of which being indicative of the petroleum hydrocarbon contamination.

REFERENCES:
patent: 2312271 (1943-06-01), Smith
patent: 2367664 (1945-01-01), Campbell et al.
patent: 3790345 (1974-02-01), Mansfield et al.
patent: 3917945 (1975-11-01), Sma et al.
patent: 4324907 (1982-04-01), Senior et al.
patent: 4992379 (1991-02-01), Hanby
patent: 5527667 (1996-06-01), Ijzerman et al.

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