Application of matrix solid-phase dispersion in the analysis of priority polycyclic aromatic hydrocarbons in fish samples

Pensado, L.; Casais, M.C.; Mejuto, M.C.; Cela, R.

doi:10.1016/j.chroma.2005.04.087

Cited by 74 publications

(34 citation statements)

References 31 publications

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“…29 However, Florisil can't retain the lipids totally from biotic samples during MSPD process, which must be associated with other adsorbent, such as octadecylsilane (C18). 18 MSPD process was completed under ambient temperature generally. With the temperature ascending, Florisil's retaining ability for lipids became weaker, 15 susceptive for the temperature.…”

Section: Study Of Adsorption For Matrix Components Of Acid Alumina Anmentioning

confidence: 99%

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Matrix Solid Phase Dispersion‐Accelerated Solvent Extraction for Determination of OCP Residues in Fish Muscles

Shen

Yuan

Zhang

et al. 2011

J Chinese Chemical Soc

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A rapid, sensitive and accurate matrix solid phase dispersion-accelerated solvent extraction (MSPD-ASE) method for selective determination of sixteen organochlorine pesticide (OCP) residues in fish samples has been developed and validated. 2 g fresh fish muscle was dispersed with 10 g anhydrous sodium sulfate and 2 g acid alumina thoroughly, and loaded into the stainless-steel extraction cell containing 6 g of acid alumina and 10 g anhydrous sodium sulfate. The temperature 60°C and two extraction cycles of 5 min gave adequate extraction efficiency using DCM-hexane (3:7, v/v) mixture as solvent. Not only the lipids, but also other co-extracts, which peaks mostly located in the forepart of chromatograms and maybe interfere the identification or quantitation of analytes, were eliminated exhaustively, while analytes were extracted selectively. Sixteen OCPs were identified by retention time of standards and quantified using mirex as internal standards. These detected OCPs were confirmed by GC-MS in real samples. The performance of proposed method was evaluated and validated: the detection limits were 0.008-0.05 ng g -1 , relative standard deviations were 1.9-5.0%, and recoveries were 91.0-104.1% spiked at 10 ng g -1 level. The accuracy and precision of proposed method were equal to or better than that of traditional Soxhlet extraction method.

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Section: Study Of Adsorption For Matrix Components Of Acid Alumina Anmentioning

confidence: 99%

“…[5][6][7] MSPD is also applied, 13,18 which uses similar separation mechanisms to solid phase extraction (SPE). [19][20][21][22] The MSPD-ASE method integrates the relative merits of MSPD and ASE to achieve the selective determination of analytes with correct adsorbent.…”

Section: Mechanisms Of Mspd-asementioning

confidence: 99%

Matrix Solid Phase Dispersion‐Accelerated Solvent Extraction for Determination of OCP Residues in Fish Muscles

Shen

Yuan

Zhang

et al. 2011

J Chinese Chemical Soc

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“…Several authors have compared a range of extraction techniques, such as Soxhlet extraction (Janska, Tomaniova, Hajslova, & Koco-urek, 2006), ultrasonic extraction (Janska et al, 2006), supercritical fluid extraction, pressurised liquid extraction (Duedahl-Olesen & Ghorbani, 2008), matrix solid-phase dispersion (Pensado, Casais, Mejuto, & Cela, 2005) and microwave-assisted extraction (MAE) (Akpambang et al, 2009;El-Saeid, 2006;Pena et al, 2006;Soclo, Budzinski, Garrigues, & Matsuzawa, 2008). The ability to rapidly heat the sample-solvent mixture is inherent to MAE and the main advantage of this technique.…”

Section: Introductionmentioning

confidence: 99%

Analysis of polycyclic aromatic hydrocarbons in fish: Optimisation and validation of microwave-assisted extraction

et al. 2012

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An accurate and sensitive method for determination of 18 polycyclic aromatic hydrocarbons (PAHs) (16 PAHs considered by USEPA as priority pollutants, dibenzo [a,l]pyrene and benzo[j]fluoranthene) in fish samples was validated. Analysis was performed by microwave-assisted extraction and liquid chromatog-raphy with photodiode array and fluorescence detection. Response surface methodology was used to find the optimal extraction parameters. Validation of the overall methodology was performed by spiking assays at four levels and using SRM 2977. Quantification limits ranging from 0.15-27.16 ng/g wet weight were obtained. The established method was applied in edible tissues of three commonly consumed and commercially valuable fish species (sardine, chub mackerel and horse mackerel) originated from Atlantic Ocean. Variable levels of naphthalene (1.03-2.95 ng/g wet weight), fluorene (0.34-1.09 ng/g wet weight) and phenanthrene (0.34-3.54 ng/g wet weight) were detected in the analysed samples. None of the sam-ples contained detectable amounts of benzo[a]pyrene, the marker used for evaluating the occurrence and carcinogenic effects of PAHs in food.

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“…Pelos resultados da Tabela 3 conclui-se que as proporções 1:1 e 2:1 de adsorvente:amostra (m/m) não influenciam significativamente na porcentagem de recuperação dos quatro agrotóxicos pela DMFS, ao nível de 95% de probabilidade pelo teste t. Alguns autores, 25,35 no entanto, relatam que o aumento da proporção do adsorvente contribui para o aumento da porcentagem de recuperação de alguns agrotóxicos.…”

Section: Otimização Da Técnica Dispersão Da Matriz Em Fase Sólida (Dmunclassified

Análise de resíduos de agrotóxicos em tomates empregando dispersão da matriz em fase sólida (DMFS) e cromatografia gasosa

Pinho¹,

Neves²,

Queiroz³

2009

Quím. Nova

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Application of matrix solid-phase dispersion in the analysis of priority polycyclic aromatic hydrocarbons in fish samples

Cited by 74 publications

References 31 publications

Matrix Solid Phase Dispersion‐Accelerated Solvent Extraction for Determination of OCP Residues in Fish Muscles

Matrix Solid Phase Dispersion‐Accelerated Solvent Extraction for Determination of OCP Residues in Fish Muscles

Analysis of polycyclic aromatic hydrocarbons in fish: Optimisation and validation of microwave-assisted extraction

Análise de resíduos de agrotóxicos em tomates empregando dispersão da matriz em fase sólida (DMFS) e cromatografia gasosa

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