METHOD OF PREPARING OIL SAMPLE FOR GAS CHROMATOGRAPHIC ANALYSIS OF LOW-VOLATILE POLAR SUBSTANCES Russian patent published in 2019 - IPC G01N1/28 G01N1/00 G01N30/00 B01D11/00 B01D11/02

Abstract RU 2688513 C1

FIELD: physics.

SUBSTANCE: invention relates to gas-chromatographic methods of analysing oil-soluble low-volatile polar compounds and can be used in oil and other industries for their quantitative determination. Low-volatile polar substances are extracted from oil in two stages. At the first stage low-volatile polar substances are extracted using a water-alcohol extracting agent (3:1). On the second one, they are concentrated using calcium chloride and pentanol-1, which in quantitative gas-chromatographic analysis simultaneously serves as an internal standard.

EFFECT: disclosed is a gas chromatographic method of analysing oil-soluble low volatile polar compounds.

1 cl, 1 dwg, 1 tbl

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RU 2 688 513 C1

Authors

Nechaev Sergej Aleksandrovich

Onuchak Lyudmila Artemovna

Arutyunov Yurij Ivanovich

Dates

2019-05-21—Published

2018-05-03—Filed