Aplicações de cromatografia líquida de alta eficiência para o estudo de poluentes orgânicos emergentes

Silva, Carla Grazieli Azevedo da

doi:10.1590/s0100-40422011000400020

Cited by 52 publications

(32 citation statements)

References 25 publications

(48 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[3][4][5][6] They are released continuously into the environment as a result of industrial processes, and discharges of commercial products or human or livestock sewage directly into water bodies, soil and sediments. [6][7][8] Estimates of worldwide total antibiotic consumption in livestock alone range from 60,000 to 240,000 tons annually. 9 Until 2030 in some countries, including Brazil, the consumption might increase by 67%.…”

Section: Introductionmentioning

confidence: 99%

“…10 Over the past few years, environmental regulatory agencies in developed countries have worked to establish regulatory guidelines to control harmful substances in the environment, and more specifically, to human health. [8][9][10] The main concern is that many emerging contaminants are not yet included in environmental legislation around the world. Currently, only a few isolated compounds have been regulated, although the vast majority still remain without legal definitions as their presence in different matrices.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Aqueous Ultrasound-Assisted Extraction for the Determination of Fluoroquinolones in Mangrove Sediment by High-Performance Liquid Chromatography and Fluorescence Detector

Neves¹,

Silva²,

Brito³

et al. 2017

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

A method for simultaneous analysis of ciprofloxacin (CIP), levofloxacin (LEV) and norfloxacin (NOR) in mangrove sediment was developed using aqueous ultrasound-assisted extraction (UAE), solid phase extraction (SPE) and high-performance liquid chromatography with fluorescence detection (HPLC-FD). The method showed excellent linear correlation coefficient for the three fluoroquinolones (r 2 > 0.999) using external calibration curve and good recovery in real sediment samples ranging from 73.73 to 88.85%. The precision showed a relative standard deviation lower than 20% and detection limits of 1.10, 3.33 and 0.26 µg kg -1 to CIP, LEV and NOR, respectively. There was no presence of interfering. After validation, the method was applied in the determination of pharmaceuticals in mangrove sediment in the Paciência River, Maranhão Island, Brazil. Only the CIP antibiotic was found in three of six samples analyzed, with values ranging 56.55-70.45 µg kg -1 .

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Aqueous Ultrasound-Assisted Extraction for the Determination of Fluoroquinolones in Mangrove Sediment by High-Performance Liquid Chromatography and Fluorescence Detector

Neves¹,

Silva²,

Brito³

et al. 2017

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

show abstract

“…Because of their chemical composition (the combination of lipophilic divinylbenzene and hydrophilic N-vinylpyrrolidone polymers), they are capable of extracting acidic, neutral and basic compounds at a wide range of pH values including neutral pH. 8,[21][22][23][24][25][26] EDTA was used as a chelating agent, it is recommended in the analysis of antibiotic residues in environmental samples. A chelating agent was added to water samples, prior to extraction, in order to chelate metals that are found in water, making possible to achieve good extraction efficiencies.…”

Section: Spe Proceduresmentioning

confidence: 99%

“…21,24 Such recoveries are similar to those achieved by other studies depending on the analyte. 8,[18][19][20][21][22][23] In both matrices, the relative standard deviation (RSD) obtained are less than 58% for all analytes for repetitivity and repeatability, which is lower than values reported by 30 The internal standard/surrogate recoveries and standard deviations for antibiotics in both SW and DW water are presented in Tables 6 and 7, respectively.…”

Section: Iprmentioning

confidence: 99%

Development and Validation of Liquid Chromatography-Tandem Mass Spectrometry Methods for Determination of Beta-Lactams, Macrolides, Fluoroquinolones, Sulfonamides and Tetracyclines in Surface and Drinking Water from Rio de Janeiro, Brazil

Monteiro¹,

Spisso²,

Ferreira³

et al. 2017

J. Braz. Chem. Soc.

View full text Add to dashboard Cite

Two analytical methods for determination of five antibiotics classes in surface water and drinking water samples were developed and validated based on solid phase extraction followed by high-performance liquid chromatography coupled to tandem mass spectrometry. Two distinct chromatographic gradients were used according to the polarity of the different pharmaceuticals. The methods were applied for the quantification of 46 analytes belonging to beta-lactams, macrolides, fluoroquinolones, sulfonamides and tetracyclines classes. Validation results showed recoveries above 75% for the studied analytes in water samples. The method limits of detection calculated for the surface water and drinking water samples were, respectively, from 1 to 12 ng L -1 and from 0.15 to 20 ng L -1 . The method limit of quantification ranged from approximately 3 to 38 ng L -1 for surface water samples and from 0.5 to 64 ng L -1 for drinking water samples. The methods showed to be linear over the range of 25 to 1000 ng L -1 with coefficients of determination greater than 0.94. Amoxicillin, cephalexin and sulfamethoxazole as high as 105 ng L -1 were found in surface water and erythromycin, azithromycin and clarithromycin up to 35 ng L -1 could also be found in surface water. Clarithromycin, cefaclor, oxacillin, sulfamethoxazole and troleandomycin were detected in the lower range up to 10 ng L -1 in drinking water.

show abstract

“…A presente revisão bibliográfica apresenta as características físico-químicas de poluentes orgânicos emergentes e seu potencial de sorção em lodo de esgoto. (HOSPIDO et al, 2010), compostos orgânicos traços (STEVENS-GARMON et al, 2011), poluentes ou contaminantes emergentes (KUSTER et al, 2008;LA FARRÉ et al, 2008;MUÑOZ et al, 2008;SILVA & COLLINS, 2011).…”

Section: Introductionunclassified

Sorção de poluentes orgânicos emergentes em lodo de esgoto

Bittencourt

Aisse

Serrat

et al. 2016

Eng. Sanit. Ambient.

View full text Add to dashboard Cite

show abstract

Aplicações de cromatografia líquida de alta eficiência para o estudo de poluentes orgânicos emergentes

Cited by 52 publications

References 25 publications

Aqueous Ultrasound-Assisted Extraction for the Determination of Fluoroquinolones in Mangrove Sediment by High-Performance Liquid Chromatography and Fluorescence Detector

Aqueous Ultrasound-Assisted Extraction for the Determination of Fluoroquinolones in Mangrove Sediment by High-Performance Liquid Chromatography and Fluorescence Detector

Development and Validation of Liquid Chromatography-Tandem Mass Spectrometry Methods for Determination of Beta-Lactams, Macrolides, Fluoroquinolones, Sulfonamides and Tetracyclines in Surface and Drinking Water from Rio de Janeiro, Brazil

Sorção de poluentes orgânicos emergentes em lodo de esgoto

Contact Info

Product

Resources

About