Sensitive gas chromatographic–mass spectrometric method for the determination of phthalate esters, alkylphenols, bisphenol A and their chlorinated derivatives in wastewater samples

Ballesteros, O.; Zafra, Alberto; Navalón, Alberto; Vı́lchez, J.L.

doi:10.1016/j.chroma.2006.04.014

Cited by 113 publications

(60 citation statements)

References 25 publications

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“…4c and 5d); the MS fragmentation peaks characteristic of the BPA (357 and 372 m/z) were identical to those reported by other authors using similar experimental conditions Fig. 3 Ranges of the physico-chemical parameters measured in each of the sampling sites (S1 to S8) of the Mondego River estuary Environ Monit Assess (Ballesteros et al 2006;Silveira 2007). The analysis of the current data suggested that this pollutant was dumped in this estuary at or before the S8 sampling point by an occasional and/or deliberate discharge of a yet unknown industrial origin.…”

Section: Resultssupporting

confidence: 63%

“…The gas chromatographic system consisted in a Varian CP 3800 apparatus equipped with a VF-5ms type capillary column (30m×0.25 mm i.d., df: 0.25 μm) connected to an ion trap mass spectrometer (Varian Saturn 2200). The GC-MS analytical procedure used for the current estuarine water samples was based in several published protocols (Lee et al 2004;Ballesteros et al 2006;Shareef et al 2006) and was adjusted to the current samples accordingly to Silveira (2007). Thus, as the majority of the EDCs analysed (Fig.…”

Section: Chromatographic System and Main Methodological Characteristicsmentioning

confidence: 99%

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Distribution of endocrine disruptors in the Mondego River estuary, Portugal

Ribeiro

Pardal

Martinho

et al. 2008

Environ Monit Assess

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Recent studies in the Mondego River estuary demonstrated signs of pollution in the area, but the nature of the contamination remains unexplored. Because there seems to be any studies in that zone checking for the simultaneous presence of xenoestrogenic endocrine disrupting compounds, either of animal (estradiol and estrone), vegetal (daidzein, genistein and biochanin A), pharmaceutical (17α-ethynylestradiol) or industrial (bisphenol A, 4-octylphenol, 4-nonylphenol) origins, the main objective of this study was to investigate their presence, in every year season and at eight points along the estuarine gradient. For this propose, water samples (2 L) were collected in high and low tides, preconcentrated in the Oasis HLB cartridges and cleaned in silica cartridges before their analysis by HPLC-DAD and GC-MS. The current data showed the absence of contamination by animal or pharmaceutical estrogens and by alkylphenols, but demonstrated the presence of high levels of phytoestrogens (up to 1

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Section: Resultssupporting

confidence: 63%

Section: Chromatographic System and Main Methodological Characteristicsmentioning

confidence: 99%

Distribution of endocrine disruptors in the Mondego River estuary, Portugal

Ribeiro

Pardal

Martinho

et al. 2008

Environ Monit Assess

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“…The removal efficiency could be attributed to the sedimentation of solids and in the activated sludge which was not investigated. The level of phthalates detectable in the raw and effluent are higher than in other studies [20,21,23,24,25]. Throughout the three days sampling period, DEP concentration was higher than other phthalates investigated in the treatment plant.…”

Section: Occurrence and Removal Of Phthalates In The Wastewater Treatcontrasting

confidence: 59%

Analysis of Phthalate and Priority Phenols from a Wastewater Treatment Plant in Cape Town, South Africa

2017

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Continuous disposal of endocrine-disrupting chemicals (EDCs) into the environment can lead to serious human health problems and can affect aquatic organisms. A number of investigations suggested that final effluents of wastewater treatment plants are the main source of EDCs into the aquatic environment. A developed analytical method was used for the analysis of priority phenols as tert-butyl derivatives and phthalates in wastewater. Qualitative and quantitative analyses were performed by gas chromatography -mass spectrometry (GC-MS) using DB-5MS column. These compounds were evaluated using solid-phase extraction for raw and treated wastewater from a wastewater treatment plant. Concentrations of analytes ranged from below limit of detection to 570µgL -1 for phenols and below limit of quantification to 796µgL -1 for phthalates. Diethyl phthalate was the most prominent phthalate ester with pentachlorophenol for the corresponding phenol. The average percent removal varied from 52.63 to 100%. The result clearly shows that environmental endocrine disrupting chemicals are not completely removed from treated wastewater.

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“…Several methods have been developed to assess the content of polyphenols in foods and beverages including chromatographic methods [10,11], capillary electrophoresis [12], spectrophotometry [13] and electrochemical methods [14,15].…”

Section: Introductionmentioning

confidence: 99%

Advantages of the Biomimetic Nanostructured Films as an Immobilization Method vs. the Carbon Paste Classical Method

et al. 2012

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Tyrosinase-based biosensors containing a phthalocyanine as electron mediator have been prepared by two different methods. In the first approach, the enzyme and the electron mediator have been immobilized in carbon paste electrodes. In the second method, they have been introduced in an arachidic acid Langmuir-Blodgett nanostructured film that provides a biomimetic environment. The sensing properties of non-nanostructured and nanostructured biosensors towards catechol, catechin and phenol have been analyzed and compared. The enzyme retains the biocatalytic properties in both matrixes. However, the nanostructured biomimetic films show higher values of maximum reaction rates and lowest apparent Michaelis-Menten constants. In both types of sensors, the sensitivity follows the decreasing order catechol > catechin > phenol. The detection limits observed are in the range of 1.8-5.4 μM for Langmuir-Blodgett biosensors and 8.19-8.57 μM for carbon paste biosensors. In summary, it has been demonstrated that the Langmuir-Blodgett films provide a biomimetic environment and nanostructured biosensors show better performances in terms of kinetic, detection limit and stability. OPEN ACCESSCatalysts 2012, 2 518

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Sensitive gas chromatographic–mass spectrometric method for the determination of phthalate esters, alkylphenols, bisphenol A and their chlorinated derivatives in wastewater samples

Cited by 113 publications

References 25 publications

Distribution of endocrine disruptors in the Mondego River estuary, Portugal

Distribution of endocrine disruptors in the Mondego River estuary, Portugal

Analysis of Phthalate and Priority Phenols from a Wastewater Treatment Plant in Cape Town, South Africa

Advantages of the Biomimetic Nanostructured Films as an Immobilization Method vs. the Carbon Paste Classical Method

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