NDLI: Development and comparison of four methods for the extraction of antibiotics from a vegetative matrix.

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Development and comparison of four methods for the extraction of antibiotics from a vegetative matrix.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Sallach, J. Brett Snow, Daniel Hodges, Laurie Li, Xu Bartelt-Hunt, Shannon
Description	Country affiliation: United States Author Affiliation: Sallach JB ( University of Nebraska-Lincoln Department of Civil Engineering, Lincoln, Nebraska, USA.); Snow D ( University of Nebraska-Lincoln Water Sciences Laboratory, Lincoln, Nebraska, USA.); Hodges L ( University of Nebraska-Lincoln Department of Agronomy and Horticulture, Lincoln, Nebraska, USA.); Li X ( University of Nebraska-Lincoln Department of Civil Engineering, Lincoln, Nebraska, USA.); Bartelt-Hunt S ( University of Nebraska-Lincoln Department of Civil Engineering, Lincoln, Nebraska, USA.)
Abstract	Studies have shown the potential for antibiotic uptake into food crops from irrigation water and soils containing pharmaceuticals. The objective of the present study was to develop and compare methods quantifying uptake of antibiotics in food crops. Four methods were evaluated: freeze-and-thaw cell lysing, mechanical maceration, tissue sonication, and microwave-assisted solvent extraction. Four antibiotics (ciprofloxacin, lincomycin, oxytetracycline, and sulfamethoxazole) were tested representing 4 classes of antibiotics. The methods were evaluated based on method detection limits, analyte recoveries, and sample preparation time. The 2 most viable methods, freeze-and-thaw lysing and mechanical maceration, were used on replicate lettuce (Lactuca sativa) samples grown using irrigation water spiked with 3 of the antibiotic contaminants. Only lincomycin and sulfamethoxazole were detected in lettuce samples at concentrations as high as 1757 ng/g and 425 ng/g, with detection limits of 57 ng/g and 35 ng/g, respectively. Freeze-and-thaw cell lysing provided the highest level of extraction efficiency on environmental samples and required the least amount of sample preparation while providing adequate detection limits and reproducible analyte recovery.
File Format	HTM / HTML
ISSN	07307268
Issue Number	4
Volume Number	35
e-ISSN	15528618
Journal	Environmental Toxicology and Chemistry
Language	English
Publisher	Wiley
Publisher Date	2016-04-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Research Support, U.s. Gov't, Non-p.h.s. Environmental Monitoring Comparative Study Discipline Environmental Health Isolation & Purification Discipline Toxicology Anti-bacterial Agents Freezing Journal Article Limit Of Detection Tandem Mass Spectrometry Chemistry Lettuce Chromatography, Liquid Discipline Chemistry Crops, Agricultural Methods
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Health, Toxicology and Mutagenesis

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Development and comparison of four methods for the extraction of antibiotics from a vegetative matrix.

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Development and comparison of four methods for the extraction of antibiotics from a vegetative matrix.