Determinação de plastificantes em água potável utilizando cromatografia gasosa e espectrometria de massas

Souza, Renata Rodrigues de; Martins, Eliseu; Otomo, Juliana Ikebe; Furusawa, Helio A.; Pires, Maria Aparecida Faustino

doi:10.1590/s0100-40422012000700028

Cited by 13 publications

(5 citation statements)

References 12 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…As can be seen, the chromatograms are clear, which means that the extraction procedure is effective and that the peaks are sharp and well resolved. For a complete analytical characterization, a comparison was carried out between our main results and those reported in the literature; in particular, recoveries, LODs and LOQs were compared between different studies performed in the last decade for the simultaneous analysis of PAEs and BPA in food/beverage matrices [51][52][53][71][72][73][74][75][76][77][78] (Table 4). As can be seen, the main basic PAEs analyzed in most papers are DEP, DBP, and DEHP together with BPA, whereas only a few papers show a more complete PAE speciation.…”

Section: Analytical Protocol Parametersmentioning

confidence: 99%

A Method Validation for Simultaneous Determination of Phthalates and Bisphenol A Released from Plastic Water Containers

et al. 2019

View full text Add to dashboard Cite

Phthalates (or phthalate esters, PAEs) and bisphenol A (BPA) are widely used in various industries, particularly in the fields of cosmetics and packaging, and they increase the malleability and workability of materials. As a result of their use, some international health organizations have begun to study them. In this study, the authors developed a methodology for the simultaneous determination of dimethyl phthalate (DMP), diethyl phthalate (DEP), diisobutyl phthalate (DiBP); dibutyl phthalate (DBP), bis(2-ethylhexyl) phthalate (DEHP); di-n-octyl-phthalate (DnOP) and bisphenol A (BPA) from drinking and non-potable waters. The extraction of PAEs and BPA was performed using a solvent-based dispersive liquid–liquid microextraction (SB-DLLME) method. The analytical determination was performed using a gas chromatography–ion trap mass spectrometry (GC-IT/MS) analysis. The entire procedure was validated as recoveries were studied according to the volume and the extraction solvent used, pH, and ionic strength. Dynamic linearity ranges and linear equations of all the compounds were experimentally determined as well as the limit of detection (LOD) (1–8 ng mL−1) and the limit of quantification (LOQ) (5–14 ng mL−1), reproducibility, and sensitivity. The method was applied to 15 water samples (mineral water and tap water) for determining PAEs and BPA released from the plastic container. After the release simulation, four PAEs (i.e., DiBP, DBP, DHEP, and DnOP) were determined at very low concentrations (below 1.2 ng mL−1) in two water samples from (sport) bottles.

show abstract

Section: Analytical Protocol Parametersmentioning

confidence: 99%

A Method Validation for Simultaneous Determination of Phthalates and Bisphenol A Released from Plastic Water Containers

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The main source of DEPs found in surface water is the untreated or insufficiently treated sewage and industrial effluents discharged into water bodies. Another source of environmental contamination is the leaching from plastic waste disposed in open dumps or uncontrolled landfills, when the environmental conditions (pH, temperature, contact time among other conditions) are in favor of the leaching of phthalates once the plastics are in contact with water (Bošnir et al, 2007;Souza et al, 2012). surface water samples.…”

Section: Application In Real Samplesmentioning

confidence: 99%

Development and validation of an analytical method for detection and quantification of benzophenone, bisphenol A, diethyl phthalate and 4-nonylphenol by UPLC-MS/MS in surface water

Araujo

Bauerfeldt

Marques

et al. 2020

PeerJ Analytical Chemistry

View full text Add to dashboard Cite

Guandu River is the main water source for 9 million inhabitants in Rio de Janeiro city and some others included in the metropolitan region of the Rio de Janeiro State, Brazil. Here, the development of a chromatographic method and its application to assess the occurrence of 4-nonylphenol (4NP), benzophenone (BP), bisphenol A (BPA) and diethyl-phthalate (DEP), known as endocrine disruptors (EDs), is reported. Sample were prepared by solid phase extraction (SPE) with C18 cartridge and methanol as elution solvent. Validation of analytical method followed the United States Environmental Protection Agency protocol (USEPA 8000D guide) and selectivity, matrix effect, linearity, precision, accuracy, robustness, limit of detection (LOD) and limit of quantification (LOQ) were evaluated. The recovery was greater than 90%, accuracy was found between 80% and 115% and relative standard deviation (RSD) below 11.03%. LOQ ranged from 10.0 to 50.0 ng L−1, while the LOD ranged from 0.87 to 5.72 ng L−1. The coefficients of determination (R2) were greater than 0.99 for all compounds within a linear ranges of 10.0 to 500 ng L−1 for 4NP and BP and 50.0 to 500 ng L−1 for BPA and DEP. The method was therefore considered selective and robust for all micropollutants. Matrix effect was observed for BP, 4NP and DEP. The developed method was applied to analyze five samples collected monthly during 2018 at a selected sampling point of a river in Rio de Janeiro State. The maximum concentrations found for BPA, BP, DEP and 4NP were 182.04, 286.20, 2.56×103 and 13.48 ng L−1 respectively. These values are high enough to justify an investigation on the presence of these micropollutants in drinking water as well as to extend the monitoring for the search of similar pollutants and their metabolites.

show abstract

“…Phthalates are also found in thermal shielding formulations of rocket motors based on butadiene copolymer and acrylonitrile (NBR) [9] . However, due to their potential to interfere negatively with the hormonal systems of animals and humans since belonging to endocrine disruptors, exogenous substances that alter the functions of the endocrine system and cause adverse effects on health [10] , special attention has been given to these compounds in recent years. The migration of these compounds into packaging materials has become an important source of contamination for food [11] .…”

Section: Introductionmentioning

confidence: 99%

UATR and NIRA evaluation in the quantification of ATBC in NC blends

2018

View full text Add to dashboard Cite

The paint industry requires rapid and accurate methodologies of raw materials qualitiy controls. For example, the evaluation of the suitable ratio of binary mixtures of polymer/plasticizer such as nitrocellulose (NC)/acetyl tributyl citrate (ATBC) must be done, since this ratio is directly related to the performance of the final product. However, there is a small number of quantitative methodologies of such control in the literature. In this context, in this paper, the applicability of Infrared Fourier Transform Spectroscopy (FT-IR) techniques by using universal total attenuated reflection (UATR), in the middle infrared (MIR), and the reflectance analysis in the near infrared region (NIRA) is evaluated for the quantification of plasticizer ATBC in mixtures with NC. MIR and NIR methodologies presented good results such as: practicality of not requiring refined sample preparation, analysis time about 30 min and good accuracy, suitable data for using in the quality control laboratories of paint industry.

show abstract

Determinação de plastificantes em água potável utilizando cromatografia gasosa e espectrometria de massas

Cited by 13 publications

References 12 publications

A Method Validation for Simultaneous Determination of Phthalates and Bisphenol A Released from Plastic Water Containers

A Method Validation for Simultaneous Determination of Phthalates and Bisphenol A Released from Plastic Water Containers

Development and validation of an analytical method for detection and quantification of benzophenone, bisphenol A, diethyl phthalate and 4-nonylphenol by UPLC-MS/MS in surface water

UATR and NIRA evaluation in the quantification of ATBC in NC blends

Contact Info

Product

Resources

About