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Qualitative analysis and estimation of content of phenolic acids from fruit of Hacquetia epipactis [Scop] DC. by chromatographic methods

100%

Bartnik M., Stolarczyk A., Glowniak P., Burczyk J., Glowniak K.

Herba Polonica

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2003

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tom 49

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nr 3-4

Hacquetia epipactis (Scop.) DC. (Umbelliferae) is the only species of the genus Hacquetia growing mainly in Poland. In presented work extracts from fruits of this plant were investigated on the presence of phenolic acids. Free phenolic acid fractions and fractions obtained from the acid and alkaline hydrolyses were analysed by 2D TLC on cellulose layers. Chromatograms were observed in UV light (366 nm) before and after treatment with ammonia vapour and in daylight after derivatisation with 3% FeCI3 or diazotized sulphanilic acid. RP-HPLC analysis was performed using mobile phase methanol-water (20:80) with 1% acetic acid (v/v). Before HPLC samples had been purified using SPE method. The contents of phenolic acids in extract from fruits of Hacquetia (in ng/g of dry mass) were as follows: 47.69 - caffeic, 34.00 - p-coumaric, 15.35 - protocatechuic, 9.03 - p-hydroxybenzoic, 7.31 - ferulic and 6.22 - vanillic acid.

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Fatty acid profile of raw materials and chocolate milk mass depending on temperature and time of mixing

84%

Urbanska B., Kowalska H., Derewiaka D., Kowalska J.

Zeszyty Problemowe Postępów Nauk Rolniczych

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2020

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tom 601

3

Properties and determination of polycyclic aromatic hydrocarbons [PAHs] using chromatographic methods

84%

Gadzala R. M., Buszewski B.

Polish Journal of Environmental Studies

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1995

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tom 04

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nr 1

In this paper physical, chemical and toxical properties of the polycyclic aromatic hydrocarbons (PAHs) have been described. Different methods for isolation of these compounds from air, water and soil were presented. Various chromatographic methods such as gas chromatography (GC and CGC/MS), high performance liquid chromatography (HPLC) with UV-Vis, diode array and fluorescence detection, thin-layer chromatography (TLC) and supercritical fluid chromatography (SFC) were applied for PAH determination.

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Oznaczanie HCH, DDT i jego metabolitów w jajach kurzych metodą chromatografii cienkowarstwowej

67%

Zimak J., Zero M.

Roczniki Państwowego Zakładu Higieny

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1970

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tom 21

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nr 1

Ograniczanie wyników

1 Herba Polonica

1 Polish Journal of Environmental Studies

1 Roczniki Państwowego Zakładu Higieny

1 Zeszyty Problemowe Postępów Nauk Rolniczych

1 Bartnik M.

1 Burczyk J.

1 Buszewski B.

1 Derewiaka D.

1 Gadzala R. M.

1 Glowniak K.

1 Glowniak P.

1 Kowalska H.

1 Kowalska J.

1 Stolarczyk A.

1 Urbanska B.

1 Zero M.

1 Zimak J.

1 2020

1 2003

1 1995

1 1970

Qualitative analysis and estimation of content of phenolic acids from fruit of Hacquetia epipactis [Scop] DC. by chromatographic methods

Fatty acid profile of raw materials and chocolate milk mass depending on temperature and time of mixing

Properties and determination of polycyclic aromatic hydrocarbons [PAHs] using chromatographic methods

Oznaczanie HCH, DDT i jego metabolitów w jajach kurzych metodą chromatografii cienkowarstwowej