Multiresidue analysis of pollutants as their trimethylsilyl derivatives, by gas chromatography–mass spectrometry

Sebők, Anna; Vasanits-Zsigrai, A.; Helenkár, A.; Záray, Gy.; Molnár-Perl, I.

doi:10.1016/j.chroma.2009.01.056

Cited by 53 publications

(21 citation statements)

References 50 publications

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“…Hungarian scientists reported contamination in the River Danube earlier. In 2009 E2 was found neither in local WWTP effluents nor in River Danube (LOD: 8.6ng/L) (Sebok et al 2009), but there were 0-0.4 ng/L E2 and 0-1.16 ng/L EE2 found at nearby locations in 2010. This later study used derivatization in order to improve sensitivity (LODs not available) and the occurrence in the suspended phase was also studied.…”

Section: Discussionmentioning

confidence: 94%

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: Discussionmentioning

confidence: 94%

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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“…They were stored at 4 C in 4-mL tightly closed graded glass vials prior to analysis. were made accordingly to our previously developed method (Sebők et al, 2009). Briefly, on-column (a) injections were made at 100 ºC, and held at 100 ºC for 0.1 min, then heated to 300 ºC (200 ºC min −1 ), with a 3 min hold at 300 ºC; (b) column temperature started at 100 ºC, for 1 min, then heated up to 300 ºC with a heating ramp of 20 ºC min −1 , and a 5.5 min hold at 300 ºC.…”

Section: Sample Preparationmentioning

confidence: 99%

Study on the leaching of phthalates from polyethylene terephthalate bottles into mineral water

Keresztes

Tatár

Czégény

et al. 2013

Science of The Total Environment

163

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Carbonated and non-carbonated mineral water samples bottled in 0.5-L, 1.5-L and 2.0-L polyethylene terephthalate (PET) containers belonging to three different water brands commercialized in Hungary were studied in order to determine their phthalate content by gas chromatography -mass spectrometry. Among the six investigated phthalates, diisobutyl phthalate, di-n-butyl-phthalate, benzyl-butyl phthalate and di(2-ethyl-hexyl) phthalate (DEHP) were determined in non-carbonated samples as follows: 3

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“…Therefore, chlolesterol was detected at all sampling sites. Similar concentrations also were found in the Danube River (Sebok et al, 2009). …”

Section: Analysis Of Real Samplessupporting

confidence: 77%

Assessment of the Occurrence and Potential Effects of Pharmaceuticals and Personal Care Products in South Florida Waters and Sediments

Wang¹

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All rights reserved.iv DEDICATION It is not easy to start pursuing a Ph.D and it becomes even harder towards the end. It is a kind of job that makes me start to question myself; it is a period of time in my life that I am desperate to call for help. But I am indeed blessed.I dedicate this dissertation to my parents, without their understanding and support and most of all love, it is impossible for me to walk so far on my way of pursuing my dream. They not only gave me life but also taught me how to become a better person.I dedicate this dissertation to my husband, without him, I will never know the colorful and beautiful part of life. He lets me feel peaceful and powerful when I face difficulties. An ASE-SPE-GC-MS method was developed and applied to the analysis of the sediment and soil area where reclaimed water was used for irrigation. Most analytes were below detection limits, even though some of analytes were detected in the reclaimed water at relatively high concentrations corroborating the fact that PPCPs do not significantly partition to mineral phases.

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Multiresidue analysis of pollutants as their trimethylsilyl derivatives, by gas chromatography–mass spectrometry

Cited by 53 publications

References 50 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

Study on the leaching of phthalates from polyethylene terephthalate bottles into mineral water

Assessment of the Occurrence and Potential Effects of Pharmaceuticals and Personal Care Products in South Florida Waters and Sediments

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