Analysis of phenolic compounds in the dissolved and suspended phases of Lake Balaton water by gas chromatography-tandem mass spectrometry

Faludi, T.; Balogh, Csilla; Serfözö, Zoltán; Molnár-Perl, I.

doi:10.1007/s11356-015-4734-x

Cited by 16 publications

(7 citation statements)

References 56 publications

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“…We were also determined to measure these endocrine disrupting compounds (EDCs) in Lake Balaton and in Central European rivers, because there is very limited data published about the occurrence of EE2 in the Carpathian basin (Aris et al 2014). As EDCs in waters can not only occur in dissolved form (Andrasi et al 2013, Faludi et al 2015, but associate with suspended particles also, we decided to measure the dissolved and suspended phases separately as well. In order investigate this phenomenon we have chosen an urban canal water sample and several freshwater samples and measured separately the estrogen content of their suspended and dissolved phase.…”

Section: Introductionmentioning

confidence: 99%

β-Estradiol and ethinyl-estradiol contamination in the rivers of the Carpathian Basin

Avar

Zrínyi²,

Maász

et al. 2016

Environ Sci Pollut Res

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17β-estradiol (E2) and 17α-ethinyl estradiol (EE2), which are environmental estrogens have been determined with LC-MS in freshwater. Their sensitive analysis needs derivatisation and therefore is very hard to achieve in multiresidue screening. We analysed samples from all the large and some small rivers (River Danube, Drava, Mur, Sava, Tisza and Zala) of the Carpathian Basin and from Lake Balaton. Freshwater was extracted on solid phase and derivatised using dansyl-chloride. Separation was performed on a Kinetex XB-C18 column. Detection was achieved with a benchtop orbitrap mass spectrometer using targeted MS analysis for quantification. Limits of quantification were 0.05 ng/L (MS1) and 0.1 ng/L (MS/MS) for E2, and 0.001 ng/L (MS1) and 0.2 ng/L (MS/MS) for EE2. River samples contained n.d.-5.2 ng/L E2 and n.d.-0.68 ng/L EE2. Average levels of E2 and EE2 were 0.61 and 0.084 ng/L respectively in rivers, water courses and Lake Balaton together, but not counting city canal water. EE2 was less abundant, but it was still present in almost all of the samples. In beach water samples from Lake Balaton we measured 0.076-0.233 E2 and n.d.-0.133 EE2. A relative high amount of EE2 was found in river Zala (0.68 ng/L) and in Hévíz-Páhoki canal (0.52 ng/L), which are both in the catchment area of Lake Balaton (Hungary). HighlightsMethod is proposed for simultaneous determination of 17β-estradiol and 17α-ethinyl estradiol. Derivatization is necessary to reach low LOQ. Low ng/L presence of estrogens in selected European Rivers has been detected.

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Section: Introductionmentioning

confidence: 99%

β-Estradiol and ethinyl-estradiol contamination in the rivers of the Carpathian Basin

Avar

Zrínyi²,

Maász

et al. 2016

Environ Sci Pollut Res

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“…The environmental article measured the levels of EDCs in a lake in Western Hungary. 58 Slovakia had three very good articles that investigated the mechanisms of bisphenol activity. The first article was published in 2005 and was followed up by the same team in 2009.…”

Section: Bisphenol Research In the Rest Of The Lesser Developed Eu Mementioning

confidence: 99%

The state of bisphenol research in the lesser developed countries of the EU: a mini-review

Thoene

Rytel

Nowicka

et al. 2018

Toxicology Research

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Bisphenol compounds are a class of chemical epoxy resins that are found throughout the world in food packaging, thermal paper products, dental materials, and more. These compounds were deemed to be safe until recently, when some studies noticed adverse effects at very low doses, due to the fact that bisphenol acts as an endocrine disruptor. Over the last ten years, studies have been performed to detect bisphenols (especially BPA) in serum and blood samples throughout the world. Essentially, the majority of the earth's population seems to have significantly measurable levels of bisphenol in their blood plasma or urine. However, the majority of the population is unaware that a potential danger may exist. The purpose of this mini-review is to report upon the state of bisphenol research in the lesser developed member-states of the European Union and to increase awareness of the exposure level and possible adverse health effects of this endocrine disruptor. The results show that only three of the most newly admitted members of the European Union have published research concerning the health effects and/or environmental exposure of EU citizens to bisphenol compounds. Those countries were Slovenia, Poland and the Czech Republic. The rest of the surveyed member-states had little or no published research in relation to bisphenol compounds. Furthermore, even the three nations referred to above still lagged far behind the more advanced EU member-states. The lack of research could translate into a lack of awareness amongst the citizenry of nearly half of the EU, and may be unnecessarily putting those EU citizens at an increased risk of exposure.

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“…It Corrodes steel, brass, copper and copper alloys. It is probably combustible (Faludi et al, 2015).…”

Section: Physical Properties Of Bio-oilmentioning

confidence: 99%

Conversion of cotton residues to bio-oil and chemicals through flash pyrolysis in a fluidised bed reactor

Madhu

Kanagasabapathy²,

Manickam³

2018

IJETP

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Pyrolysis process offers solution to utilise huge quantity of biomass to produce fuel for energy needs. This paper describes the development of a new model for waste cotton shell pyrolysis. This model calculates the minimum fluidisation velocity for various sand particles for better fluidisation. Cotton shell wastes were subjected to pyrolysis at atmospheric pressure under inert gas atmosphere in a fluidised bed setup to determine the effect of operation parameters. The sand particle size 0.71 mm offered better fluidisation and is more economical as it utilises low hydrogen flow rate. The maximum yield of bio-oil 51 wt% can be obtained under the operation parameters of 450ºC pyrolysis temperature, 1 mm particle size at sweep gas flow rate of 1.75 m 3 /h. In addition, the characterisation study of the bio-oil has been done for its physical and chemical analysis with gas chromatography mass spectroscopy. The elements and its derivatives found in the GC-MS analysis are used as a feed stock for chemical industries.

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Analysis of phenolic compounds in the dissolved and suspended phases of Lake Balaton water by gas chromatography-tandem mass spectrometry

Cited by 16 publications

References 56 publications

β-Estradiol and ethinyl-estradiol contamination in the rivers of the Carpathian Basin

β-Estradiol and ethinyl-estradiol contamination in the rivers of the Carpathian Basin

The state of bisphenol research in the lesser developed countries of the EU: a mini-review

Conversion of cotton residues to bio-oil and chemicals through flash pyrolysis in a fluidised bed reactor

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