Simultaneous determination of drug active compound, hormones, pesticides, and endocrine disruptor compounds in wastewater samples by GC-MS with direct calibration and matrix matching strategies after preconcentration with dispersive liquid-liquid microextraction

Koçoğlu, Elif Seda; Sözüdoğru, Onur; Komesli, Okan Tarık; Yılmaz, Alper Erdem; Bakırdere, Sezgin

doi:10.1007/s10661-019-7676-9

Cited by 10 publications

(3 citation statements)

References 18 publications

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“…These solutions are water, pH-adjusted water, or in a few cases methanol-water (5:95, v/v). The wash was followed by cartridges air-drying by vacuum or pressure to remove the remaining water, although in few cases, the cartridges can be dried with nitrogen instead of air [37,48,55,61,63].…”

Section: Spe Activation Washing and Elutionmentioning

confidence: 99%

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Sample Preparation to Determine Pharmaceutical and Personal Care Products in an All-Water Matrix: Solid Phase Extraction

Sadutto

Picó

2020

Molecules

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Pharmaceuticals and personal care products (PPCPs) are abundantly used by people, and some of them are excreted unaltered or as metabolites through urine, with the sewage being the most important source to their release to the environment. These compounds are in almost all types of water (wastewater, surface water, groundwater, etc.) at concentrations ranging from ng/L to µg/L. The isolation and concentration of the PPCPs from water achieves the appropriate sensitivity. This step is mostly based on solid-phase extraction (SPE) but also includes other approaches (dispersive liquid-liquid microextraction (DLLME), buckypaper, SPE using multicartridges, etc.). In this review article, we aim to discuss the procedures employed to extract PPCPs from any type of water sample prior to their determination via an instrumental analytical technique. Furthermore, we put forward not only the merits of the different methods available but also a number of inconsistencies, divergences, weaknesses and disadvantages of the procedures found in literature, as well as the systems proposed to overcome them and to improve the methodology. Environmental applications of the developed techniques are also discussed. The pressing need for new analytical innovations, emerging trends and future prospects was also considered.

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Section: Spe Activation Washing and Elutionmentioning

confidence: 99%

“…The microextractions, both solid and liquid, are an attractive alternative to SPE. The Dispersive Liquid-liquid Microextraction (DLLME) [37,47] has benefits related to a quick, easy cleaning and highly efficient pre-concentration procedure. Moreover, the sample volume required was very small, reducing the wastes.…”

Section: Other Extraction Approachesmentioning

confidence: 99%

Sample Preparation to Determine Pharmaceutical and Personal Care Products in an All-Water Matrix: Solid Phase Extraction

Sadutto

Picó

2020

Molecules

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“…Electrical conductivity (EC), temperature, and pH measurements were performed using a multimeter (WTW mult340i multimeter). In this study, EDCs were simultaneously preconcentrated using the sensitive and precise dispersive liquid-liquid microextraction (DLLME) method developed by Kocoglu et al (2019) and quantitative measures of EDCs were performed with the GC-MS system [43]. COD and EDCs removal efficiencies were determined by Equation (7).…”

Section: Analytical Techniquesmentioning

confidence: 99%

The Experimental Design Approach to Removal of Endocrine Disrupting Compounds from Domestic Wastewater by Electrooxidation Process

Sözüdoğru

Koçoğlu

Yılmaz

et al. 2023

Preprint

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In this study, the treatment performance of the process in the removal of Endocrine Disrupting Compounds (EDCs) from domestic wastewater by a laboratory-scale electrooxidation process using Ti/IrO₂/RuO₂ electrodes as an anode was evaluated using response surface method (RSM). The effect of pH, current density, and flow rate on the electrochemical treatment of 17α-ethinylestradiol, β-estradiol, triclosan, and estrone, which are often present in wastewater, has been studied. Using Box-Behnken Design (BBD), the parameters influencing the removal efficiencies were optimized for the Electrooxidation process (EOP), and the models created essential second-order quadratic models for the EOP process. The Response Surface Method yielded results that reasonably agreed with the measured values. The maximum removals of triclosan, 17α-ethinylestradiol, and β-estradiol were attained at 92,90%, 97,76%, and 95,36% respectively, under experimental conditions optimized pH= 3,68, current density= 20 A and flow rate= 8,83 mL/min for EOP. Removal efficiencies have achieved their maximum levels at low pH, high current density, and low flow rate. At the same time, the electrooxidation method could not completely remove the estrone.

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Novel ferrofluid based on hydrophobic deep eutectic solvents for separation and analysis of trace estrogens in environmental water and urine samples

Li,

Duan,

Shi

et al. 2024

Anal Bioanal Chem

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Simultaneous determination of drug active compound, hormones, pesticides, and endocrine disruptor compounds in wastewater samples by GC-MS with direct calibration and matrix matching strategies after preconcentration with dispersive liquid-liquid microextraction

Cited by 10 publications

References 18 publications

Sample Preparation to Determine Pharmaceutical and Personal Care Products in an All-Water Matrix: Solid Phase Extraction

Sample Preparation to Determine Pharmaceutical and Personal Care Products in an All-Water Matrix: Solid Phase Extraction

The Experimental Design Approach to Removal of Endocrine Disrupting Compounds from Domestic Wastewater by Electrooxidation Process

Novel ferrofluid based on hydrophobic deep eutectic solvents for separation and analysis of trace estrogens in environmental water and urine samples

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