The comparison of the oil pollution results in the sea water by two different UVF apparatus [İki degişik UVF aletinde petrol kirliligi sonuçlarının mukayesesi]

In this work was discussed the results of obtained by two different apparatus as Shimadzu RF 1501 and Jasco FP 6300. The measurements of oil pollution level in the sea waters were determined by using references of the Russian and Iraq crude oils and chrysene. It was found some differences between the results obtained by two apparatus. The error in the results of the references are in Russian crude oil between 01-4.4%, in Iraq crude oil 2% and in chrysene sample 5.8%. Based on these results it was suggested that the measurements must be made by the same apparatus

Oil pollution at Turkish Black Sea coast and input of oil from Turkey to the Black Sea in 2004-2007

In this work, we are reporting on the oil pollution in sea water and sediments of the Turkish coast, as well as the oil input calculated from Bosphorus undercurrent water into the Black Sea, between 2004-2007. The highest oil levels were found at the western part stations in the surface water at Terkos station (4), and in the sediments at Zonguldak station (13, 14). We suggest that the high pollution level is probably due to the pollution from Danube River, intensive ship traffic for the stations 1-6, the illegal discharge of ballast water from returning tankers, and also high tanker traffic for the stations 10-20 at the western part of the Turkish Black Sea. On the other hand, high pollution at the eastern coast is correlated with inputs from the neighboring petroleum loading stations. The calculated input of oil from undercurrent of Bosphorus was (in tons): 10422.0 (2004), 5153.10 (2005), 9385.10 (2006), and 6162.50 (2007), respectively. The oil input from the undercurrent of the Bosphorus to the Black Sea includes sewage of Istanbul and cities of the Sea of Marmara but also the pollution from Mediterranean/Aegean Sea. © by PSP

The correlation equations for the assays of heparin in metachromatic and thrombin time methods. I

PubMed ID: 6701834The subject of parallelism by metachromatic and biological assay results was examined. New correlation equations were proposed firstly between metachromatic and thrombin time assays with heparin units, secondly between metachromatic and thrombin time assays. © 1984

A chemical research on three red algae Gracilaria bursa-pastoris, Phyllophora crispa and Laurencia obtusa var. pyramidata

In this paper, the exogenic and endogenic compounds in three red algae Gracilaria bursa-pastoris, Phyllophora crispa and Laurencia obtusa var. pyramidata were reported. Exogenic compounds detected are oil components and other pollutants such as, saturated and unsaturated aliphatic, cyclic and aromatic hydrocarbons, BHT, nonyl phenol and halogenated compounds as hexachloroethane and 4-chlorophenol. Endogenic compounds were fatty acids and its esters, eicosane, squalene, phytol. The algae can be used for monitoring of the sea pollution. © 2014, Chemical Publishing Co. All rights reserved

Fractionation of agarose and Gracilaria verrucosa agar and comparison of their IR spectra with different agar

Agarose and Gracilaria verrucosa agar were fractionated by Sephadex G-25 and SPE columns (butyl, octadecyl, alumina and quaternary amine). IR spectrophotometric and metachromatic methods were used for the identification of the fractions. In contrary to findings of Tsuchiya and Hong, (1965) IR spectrum of agar and agarose were not the same. Agar showed different IR bands than agarose as at 505, 516, 534, 580, 617, 667 cm-1. Agar was not unique compound, after fraction various agars gave different IR spectra. However agar and agarose gave the same metachromatic ß band. Hence differenciation of agar and agarose is possible by IR spectra but not metachromatic method

Spectrophotometric determination of sodium cyclamate and saccharin sodium with astrazone pink FG

PubMed ID: 6207750[No abstract available

Hordenine in the marine alga, Gelidium crinale (Hare ex Turner) Gaillon

The alkaloid hordenine was firstly isolated from marine algae Phyllophora nervosa in 1969. In this work hordenine occurrence in Gelidium crinale collected from Şile is reported. The content of hordenine was 9.54 µg/g. This amount is lower than in the other hordenine containing algae. It is the first record of hordenine in Gelidium crinale

Alkaloids of marine macroalgae

Marine alkaloids have their origins from marine organisms including marine macroalgae. On the other hand, some marine algal alkaloids such as phenylethylamine derivatives were previously isolated from terrestrial plants. The other groups of alkaloids like indole derivatives and halogenated alkaloids are specific for algae. Most of the indole group alkaloids are concentrated in red algae. Green algae are rich of bromine- and chloride-containing alkaloids. These halogenated alkaloids of algae are not present in terrestrial plants and are specific for algae and sea organisms. Marine algae contain 44 alkaloids, consisting of 1 phenylethylamine, 41 indole, and 1 naphthyridine derivates. In the halogenated alkaloid group, there are 25 bromine-containing compounds, among which 7 have chlorine and 5 have sulfur, additionally. © Springer-Verlag Berlin Heidelberg 2013