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1

The composition of pigments in relation to seasonal blooms of phytoplankton in the Gulf of Gdansk

100%
Lotocka M., Falkowski L.
Oceanological Studies
|
1994
|
issue 67/10
65-72
EN
Carotenoid pigments have been identified anf qualified in samples collected during phytoplankton blooms in teh Gulf of Gdansk.The qualitative and quantitative determination of pigments have been performed by HPLC technique.The results were compared with those obtained by conventional, spectrophotometric methods applied to the same smples.
2

Determination of free fatty acids in marine environment by means of High Performance Liquid Chromatography (applying their UV absorbing and fluorescent esters)

100%
Pazdro K., Falkowski L.
Oceanological Studies
|
1994
|
issue 67/10
15-26
EN
High performance liquid chromatography was applied for identification and quantitative determination of fatty acids in marine environment, after theirtransformation into UV absorbing or emmiting derivatives.The following esters have been prepared and their chromatographic properties examined: p-nitrobenzyl, 4-methyl-7-metaxocoumaryl and 9-methyl-antranyl.Very low detection limit and efficient separation have been revealed.Reversal phase HPLC has been used for separation and identification of individual fatty acids in marine organisms and selected components of the marine environment, whereas their total concentration has been determined using normal phase chromatography.
3

The effect of siderophores and cooper on the rate of photosynthesis in unicellular algae

100%
Kossakowska A., Falkowski L.
Oceanological Studies
|
1994
|
issue 67/10
7-13
EN
The paper presents the results of studies on the influence of cooper, in the presence of siderophores, on the rate of carbon-14 incorporation into the algae cells.Axenic strains of unicellular algae:Scenedesmus microspina (Martens and Pankow), Anacystis nidulans (Nagelli) and natural populations of phytoplankton from the Gulf of Gdansk have been tested.
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