Advances in stir bar sorptive extraction for the determination of acidic pharmaceuticals in environmental water matrices

Silva, Ana Rita M.; Portugal, Fátima C.M.; Nogueira, J.M.F.

doi:10.1016/j.chroma.2008.08.103

Cited by 125 publications

(28 citation statements)

References 25 publications

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“…These polymers are produced by the reaction of polyisocyanate with polyoils and water in the presence of specific catalyst [29]. Through this reactional synthesis, a very versatile material is obtained, whose degree of rigidity depends on the desired application [29], making this type of material a very attractive polymeric phase for SBSE, as it has been demonstrated by Neng et al [34] and Fatima et al [35][36][37].…”

Section: Polyurethane Foams (Pufs)mentioning

confidence: 99%

“…Fatima et al [35][36][37] applied polyurethane foams for stir bar sorptive extraction of different types of compounds in water matrices. PU foams were applied for stir bar sorptive extraction of five triazinic metabolites (desethyl-2-hydroxyatrazine-OH-DEA, desisopropylatrazine-DIA, desethylatrazine-DEA, 2-hydroxyatrazine-OH-ATR, and desethylterbuthylazine-DTBZ) in water matrices, followed by liquid desorption and highperformance liquid chromatography with diode array detection (SBSE(PU)-LD/HPLC-DAD) [35].…”

Section: Polyurethane Foams (Pufs)mentioning

confidence: 99%

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Advances in stir bar sorptive extraction coating: A review

Rykowska¹,

Wasiak²

2013

Acta Chromatographica

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Summary. Stir bar sorptive extraction (SBSE) is an extraction technique for enrichment of organic compounds from aqueous and gaseous matrices. This technique is based on sorptive extraction, whereby the solutes are extracted into a polymer coating on magnetic stirring rod. SBSE has been used in various types of analytical procedures and wide variety of matrices. However, a limitation of SBSE lies in the fact that only polydimethylsiloxane (PDMS)-coating material is commercially available and that PDMS predominantly extracts non-polar compounds with K o/w higher than 10. In this survey, a review on non-PDMS stir bar sorptive extraction coatings and their applications to the analysis of environmental, food, and biomedical samples is given.

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Section: Polyurethane Foams (Pufs)mentioning

confidence: 99%

Section: Polyurethane Foams (Pufs)mentioning

confidence: 99%

Advances in stir bar sorptive extraction coating: A review

Rykowska¹,

Wasiak²

2013

Acta Chromatographica

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“…Moreover, the TD mode does not offer the opportunity of multiple injections, which is an important issue in many studies during validation purposes. More recently, we proved that SBSE-LD is a remarkable alternative presenting interesting features to overcome these limitations [20,21,26]. In this approach, the analytes are trapped followed by removal through back-extraction with a small volume (typically microliters) of a convenient organic solvent prior to GC-MS analysis.…”

Section: Introductionmentioning

confidence: 99%

Potentialities of two solventless extraction approaches—Stir bar sorptive extraction and headspace solid-phase microextraction for determination of higher alcohol acetates, isoamyl esters and ethyl esters in wines

Perestrelo

Nogueira

2009

Talanta

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a b s t r a c tA stir bar sorptive extraction with liquid desorption followed by large volume injection coupled to gas chromatography-quadrupole mass spectrometry (SBSE-LD/LVI-GC-qMS) was evaluated for the simultaneous determination of higher alcohol acetates (HAA), isoamyl esters (IsoE) and ethyl esters (EE) of fatty acids. The method performance was assessed and compared with other solventless technique, the solidphase microextraction (SPME) in headspace mode (HS). For both techniques, influential experimental parameters were optimised to provide sensitive and robust methods. The SBSE-LD/LVI methodology was previously optimised in terms of extraction time, influence of ethanol in the matrix, liquid desorption (LD) conditions and instrumental settings. Higher extraction efficiency was obtained using 60 min of extraction time, 10% ethanol content, n-pentane as desorption solvent, 15 min for the back-extraction period, 10 mL min −1 for the solvent vent flow rate and 10• C for the inlet temperature. For HS-SPME, the fibre coated with 50/30 m divinylbenzene/carboxen/polydimethylsiloxane (DVB/CAR/PDMS) afforded highest extraction efficiency, providing the best sensitivity for the target volatiles, particularly when the samples were extracted at 25• C for 60 min under continuous stirring in the presence of sodium chloride (10% (w/v)). Both methodologies showed good linearity over the concentration range tested, with correlation coefficients higher than 0.984 for HS-SPME and 0.982 for SBES-LD approach, for all analytes. A good reproducibility was attained and low detection limits were achieved using both SBSE-LD (0.03-28.96 g L −1 ) and HS-SPME (0.02-20.29 g L −1 ) methodologies. The quantification limits for SBSE-LD approach ranging from 0.11 to 96.56 g L − and from 0.06 to 67.63 g L −1 for HS-SPME. Using the HS-SPME approach an average recovery of about 70% was obtained whilst by using SBSE-LD obtained average recovery were close to 80%. The analytical and procedural advantages and disadvantages of these two methods have been compared.Both analytical methods were used to determine the HAA, IsoE and EE fatty acids content in "Terras Madeirenses" table wines. A total of 16 esters were identified and quantified from the wine extracts by HS-SPME whereas by SBSE-LD technique were found 25 esters which include 2 higher alcohol acetates, 4 isoamyl esters and 19 ethyl esters of fatty acids. Generally SBSE-LD provided higher sensitivity with decreased analysis time.

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“…Tyto pěny se mohou stát vhodnou alternativou k běžné PDMS fázi pro extrakci polárních analytů v stopových koncentracích. Také zlepšují extrakci triazinových herbicidů ve vodě [20][21][22].…”

Section:  5 Nové Fáze -Další Vývoj Sbseunclassified

“…These foams seem to be a convenient alternative to PDMS phase for the extraction of polar analytes in the trace level. The extraction of triazinic herbicides in water is also enhanced [20][21][22].…”

Section:  5 New Phases -Another Developments Of Sbsementioning

confidence: 99%