Simultaneous determination of polycyclic aromatic hydrocarbons and benzene, toluene, ethylbenzene and xylene in water samples using a new sampling strategy combining different extraction modes and temperatures in a single extraction solid-phase microextraction-gas chromatography–mass spectrometry procedure

Bianchin, Joyce Nunes; Nardini, Giuliana; Merib, Josias; Dias, Adriana Neves; Martendal, Edmar; Carasek, Eduardo

doi:10.1016/j.chroma.2012.02.022

Cited by 77 publications

(22 citation statements)

References 26 publications

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“…In this context, higher LODs were obtained by Bianchin et al. in water samples (170‐320 ng/L) using SPME. On the contrary, lower LODs were obtained by Chen et al.…”

Section: Resultsmentioning

confidence: 88%

“…Comparing the present study with miniaturized extraction methods, the use of SPE as extraction method has allowed obtaining adequate and comparable (or even better in some cases) results to those obtained using the aforementioned miniaturized methodologies (Table 3). In this context, higher LODs were obtained by Bianchin et al [21] in water samples (170-320 ng/L) using SPME. On the contrary, lower LODs were obtained by Chen et al [19] in water using SPME (0.10-0.73 ng/L).…”

Section: Comparison With Existing Methodologiesmentioning

confidence: 87%

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Development and validation of a GC–MS/MS method for priority polycyclic aromatic hydrocarbons quantification in different types of water samples

Valera-Tarifa

López‐Martínez

Vidal

et al. 2018

Separation Science Plus

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A sensitive analytical method has been developed for the determination of polycyclic aromatic hydrocarbons in water, including priority pollutants according to the European Union, by gas chromatography coupled to triple quadrupole tandem mass spectrometry (GC‐QqQ‐MS/MS). The sample treatment was based on a solid‐phase extraction method which was validated in four different types of water: seawater, drinking water, untreated inland water and wastewater according to CD 2002/657/EC and SANTE/11813/2017 guidelines. Obtained recovery, studied at three concentration levels (1.7, 5.6 and 25.0 ng/L), was in the range 77–108%. Precision values were ≤ 17% and 22% for intra‐day and inter‐day precision, respectively. Linearity was studied in the range 1.4‐100 ng/L, and the obtained determination coefficients (R2) were ≥ 0.9962. Limits of detection were in the range from 1.0 to 3.0 ng/L, whereas limits of quantification were established from 1.4 to 5.0 ng/L. The validated method was successfully accredited according to ISO/IEC 17025 international standard (including calculation of uncertainty) and applied to routine analysis of real water samples.

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“…In this context, higher LODs were obtained by Bianchin et al. in water samples (170‐320 ng/L) using SPME. On the contrary, lower LODs were obtained by Chen et al.…”

Section: Resultsmentioning

confidence: 88%

Section: Comparison With Existing Methodologiesmentioning

confidence: 87%

Development and validation of a GC–MS/MS method for priority polycyclic aromatic hydrocarbons quantification in different types of water samples

Valera-Tarifa

López‐Martínez

Vidal

et al. 2018

Separation Science Plus

View full text Add to dashboard Cite

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“…In-tube SPME-HPLC-DAD 0.03-20 0.01-0.02 464-2923 PDMS/DVB SPME fiber [26] HS-SPME-GC-MS 0.6-10 0.17-0.32 -PDMS SPME fiber [27] DI-SPME-GC-MS 0.5-20 0.06-0.35 -PDMS SPME fiber [28] DI-SPME-GC-MS 0.05-100 0.08-0.44 -CP-Sil 19CB capillary column [29] In-tube SPME-HPLC-FLD 0.05-2 0.32-4.63 18-47 SE-54 capillary column [30] In-tube SPME-HPLC-FLD -0.05-0.6 -DAD, diode array detector. some PAHs.…”

Section: Pils Coating Extraction Tubementioning

confidence: 99%

Poly(ionic liquids)‐coated stainless‐steel wires packed into a polyether ether ketone tube for in‐tube solid‐phase microextraction

Feng

Wang

Tian

et al. 2017

J of Separation Science

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An in-tube solid-phase microextraction device was developed by packing poly(ionic liquids)-coated stainless-steel wires into a polyether ether ketone tube. An anion-exchange process was performed to enhance the extraction performance. Surface properties of poly(ionic liquids)-coated stainless-steel wires were characterized by scanning electron microscopy and energy dispersive X-ray spectrometry. The extraction device was connected to high-performance liquid chromatography equipment to build an online enrichment and analysis system. Ten polycyclic aromatic hydrocarbons were used as model analytes, and important conditions including extraction time and desorption time were optimized. The enrichment factors from 268 to 2497, linear range of 0.03-20 μg/L, detection limits of 0.010-0.020 μg/L, extraction and preparation repeatability with relative standard deviation less than 1.8 and 19%, respectively were given by the established online analysis method. It has been used to detect polycyclic aromatic hydrocarbons in environmental samples, with the relative recovery (5, 10 μg/L) in the range of 85.1-118.9%.

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“…Isto foi provavelmente devido à presença de carboxen (carvão activado), o qual é adequado para a absorção de moléculas pequenas (volátil), resultados semelhantes aos obtidos neste trabalho são encontrado na literatura. 30 A extração foi efetuada no modo headspace em frasco de vidro de 20 mL com tampa de rosca em aço inoxidável, septo de PTFE/ silicone de 11 mm e Holder manual. Para alcançar maior eficiência de extração alguns parâmetros foram avaliados: temperatura de extração, força iônica, pH, tempo de extração, tempo de dessorção e formas de agitação da amostra.…”

Section: Desenvolvimento Do Método Hs-spme/gc-ms/ms Para Btex Em áGuaunclassified

Métodos para análises de HPA e BTEX em águas subterrâneas de postos de revenda de combustíveis: um estudo de caso em Campo Grande, MS, Brasil

Gebara¹,

Ré-Poppi²,

Nascimento³

et al. 2013

Quím. Nova

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Recebido em 11/9/12; aceito em 5/3/13; publicado na web em 6/5/13 METHODS FOR ANALYSIS OF PAH AND BTEX IN GROUNDWATER FROM GAS STATIONS: A CASE STUDY IN CAMPO GRANDE, MS, BRAZIL. Two methods using headspace solid-phase microextraction and gas chromatography-mass spectrometry were developed for the determination of polycyclic aromatic hydrocarbons (PAH) and BTEX. Best results were obtained using DVB/CAR/PDMS fiber, with 10 min extraction at 25 °C and 0.15 min desorption at 260 °C (BTEX), and PDMS/DVB fiber, with 60 min extraction at 90 °C, 10% NaCl and 5 min desorption at 270 °C (PAH). LOD intervals were 3x10 -2 -5x10 -2 µg L -1 (BTEX) and 1.6x10 -3 -1.4 µg L -1 (PAH). The methods were applied to forty-five groundwater samples from monitoring wells of gas stations and only benzene level exceeded the limit established by Brazilian regulations.Keywords: groundwater; aromatic hydrocarbons; HS-SPME/GC-MS/MS. INTRODUÇÃONo Brasil existem 38.491 postos revendedores de combustíveis automotivos sujeitos ao monitoramento segundo dados de julho de 2012 da Agência Nacional do Petróleo, Gás Natural e Biocombustíveis (ANP).1 Com uma média de quatro tanques por posto, estima-se 154.000 tanques subterrâneos em todo o território brasileiro. Muitos destes tanques foram instalados no início da década de 70, e como possuem média de vida útil de 25 anos, supõe-se que eles já estejam comprometidos.2 Considera-se que toda instalação e sistemas de armazenamento de derivados de petróleo e outros combustíveis configuram-se como empreendimentos potencialmente poluidores e geradores de acidentes ambientais, e segundo Resolução CONAMA nº 273/2000 devem passar por todas as etapas do Licenciamento Ambiental.3 Uma das etapas é a análise química da água subterrânea dos postos de combustíveis para determinar as concentrações de hidrocarbonetos policíclicos aromáticos (HPA) e de benzeno, tolueno, etilbenzeno e xilenos (BTEX), a fim de verificar contaminações por gasolina, diesel e óleo lubrificante. 4 Órgão como o CONAMA dispõe sobre a classificação e diretrizes ambientais para o enquadramento das águas subterrâneas, bem como os valores máximos permitidos em água para o consumo humano (VMP) para substâncias como os HPA e BTEX. O município de Campo Grande, MS, não dispõe de um programa bem estruturado de monitoramento da qualidade das águas subterrâ-neas em postos de revenda de combustíveis automotores, e por isso torna-se de extrema relevância a determinação destas substâncias nestes locais.A técnica mais utilizada para determinação de BTEX e HPA em água é a cromatografia a gás, no entanto esta necessita de uma etapa de extração e pré-concentração destes analitos para que sejam alcançados os baixos limites de determinação exigidos e para eliminar os constituintes que possam danificar o sistema cromatográfico. Diversas técnicas de extração e pré-concentração de BTEX têm sido reportadas na literatura, como a extração headspace (HS), purga e trapeamento (purge and trap), microextração em gota única (single drop microextration: SDME), microextração em...

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Cited by 77 publications

References 26 publications

Development and validation of a GC–MS/MS method for priority polycyclic aromatic hydrocarbons quantification in different types of water samples

Development and validation of a GC–MS/MS method for priority polycyclic aromatic hydrocarbons quantification in different types of water samples

Poly(ionic liquids)‐coated stainless‐steel wires packed into a polyether ether ketone tube for in‐tube solid‐phase microextraction

Métodos para análises de HPA e BTEX em águas subterrâneas de postos de revenda de combustíveis: um estudo de caso em Campo Grande, MS, Brasil

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