Determination of Sunscreen Compounds in Water Samples by Silicone Rod Extraction

Giordano, Ady; Richter, Pablo; Leiva, Kritsye; Ascar, Loreto

doi:10.4067/s0717-97072013000200022

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…Previously reported desorption´s conditions were used [21], 2 mL methanol with 30 min back-extraction time. There was no carry over effect and a cleaning step pervious to the reuse of the stir bar consistent in 1 hour stirring with 10 mL of fresh methanol.…”

Section: Sbse Extractionmentioning

confidence: 99%

Pharmaceutical Compounds Determination in Water Samples: Comparison Between Solid Phase Extraction and Stir Bar Sorptive Extraction

Suazo

Vásquez

Retamal

et al. 2017

J. Chil. Chem. Soc.

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A variety of organic compounds and their metabolites used in pharmaceutical and personal care products (PPCP´s) are continuously introduced into the environment by domestic or industrial wastewater. Solid phase extraction (polymeric dinivylbenzene cartridge) and stir bar sorptive extraction (polydimethylsiloxane phase) methodologies were optimized for the determination of some selected PPCP´s in aqueous matrices. Carbamazepine, β estradiol, 3-(4-methylbenzylidene) champhor, benzophenone-1 and ibuprofen were extracted from aqueous samples and methanol was used as conditioning/eluting solvent. The variables involved in the extraction of the analytes in the original sample were studied, pH between 3 and 6 and sample volume between 50 and 500 mL were considered. Three concentration levels were extracted at the optimal conditions of pH 5 and 500 mL of sample volume with a recovery up to 89%. The determination was performed in a GC-MS, and a derivatization step using BSTFA+TMCS (99:1) was needed previous to the injection. Real samples from Maipo River and Villarrica Lake were analyzed with the optimized method, and concentrations below the detection limit were detected.

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Section: Sbse Extractionmentioning

confidence: 99%

Pharmaceutical Compounds Determination in Water Samples: Comparison Between Solid Phase Extraction and Stir Bar Sorptive Extraction

Suazo

Vásquez

Retamal

et al. 2017

J. Chil. Chem. Soc.

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Environmental Applications of Solid Phase Microextraction Techniques

Montesdeoca-Esponda

Torres-Padrón

Sosa‐Ferrera

et al. 2015

Analytical Separation Science

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Miniaturization is a strategy employed in sample preparation that has gained much prominence in recent years due to the need to develop more efficient procedures that consume less solvent and time. The analysis of important families of contaminants, such as pesticides or polycyclic aromatic hydrocarbons ( PAH s), in liquid samples has traditionally been conducted using conventional techniques, such as liquid–liquid extraction ( LLE ) and solid‐phase extraction ( SPE ). Although SPE uses much less amount of solvent than LLE , the volume can still be significant, making both techniques expensive and environment‐unfriendly procedures. The miniaturization of sample preparation processes has led to a new generation of techniques with improved characteristics. Different solid‐phase microextraction ( SPME ) techniques, including fibers, stir bar sorptive extraction ( SBSE ) and thin‐film microextraction ( TFME ), and automated techniques, such as in‐tube solid‐phase microextraction ( IT ‐ SPME ), have allowed the determination of different families of contaminant compounds, including emerging compounds in complex environmental waters, such as seawater, groundwater, or superficial water. The emerging compounds are relatively unknown compounds that are not covered by the existing regulations; they are frequently detected in different environmental compartments in very low concentrations. For this reason, their analysis requires extraction, purification and preconcentration from the matrix and subsequent separation and detection systems that can measure these concentration levels. In this chapter, we review the most recent applications of microextraction techniques based on solid phase coupled to liquid chromatography ( LC ) for the determination of different emerging contaminants in several water environmental matrices.

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Effects of Commercial Sunscreens on Survival, Reproduction and Embryonic Development of the Aquatic Snail Biomphalaria glabrata (SAY, 1818)

Costa

Oliveira-Filho

2023

Bull Environ Contam Toxicol

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Determination of Sunscreen Compounds in Water Samples by Silicone Rod Extraction

Cited by 3 publications

References 14 publications

Pharmaceutical Compounds Determination in Water Samples: Comparison Between Solid Phase Extraction and Stir Bar Sorptive Extraction

Pharmaceutical Compounds Determination in Water Samples: Comparison Between Solid Phase Extraction and Stir Bar Sorptive Extraction

Environmental Applications of Solid Phase Microextraction Techniques

Effects of Commercial Sunscreens on Survival, Reproduction and Embryonic Development of the Aquatic Snail Biomphalaria glabrata (SAY, 1818)

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