Method and equipment for the simulated distillation by means of

Details Method and equipment for the simulated distillation by means of Method and equipment for the simulated distillation by means of

1985-12-19

1988-07-12

Schor, Kenneth M.

Chemistry: analytical and immunological testing

Measurement of electrical or magnetic property or thermal...

Of an ionized gas

436161, 422 54, 422 89, 422 67, 55386, 585825, G01N 3002, G01N 2100

Patent

active

047570237

ABSTRACT:
The invention concerns a method and an equipment for the simulated distillation, by means of gas chromatography, of petroleum products, capable of characterizing also high boiling products, exceeding C55, over 600 C TBP. A chromatograph is used with a capillary column having a length less than or equal to 10 m, containing an immobilized non polar polydimethylsilicon gum stationary phase with a film thickness less than or equal to 0.2 .mu.m. The sample is introduced through a non vaporizing direct cold on-column injection and the eluted sample is detected by means of a FID detector. The column oven is operated in temperature programming conditions up to temperatures exceeding 400 (up to 430-450 C.).

REFERENCES:
patent: 3661527 (1972-05-01), Eggersten et al.
patent: 4135881 (1979-01-01), Bakx et al.
patent: 4376641 (1983-03-01), Nestrick et al.
Quantitative Gas Chrom Analysis of Hydros w/Capillary Columns and Flame Ioniz. Detector, Anal. Chem., 36, 3 p. 461, 1964.

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