Using silica coated magnetite nanoparticles modified with anionic surfactant aggregates as a solid phase microextraction adsorbent for determination of fluoroquinolones in egg samples by spectrofluorimetry

Abstract

We developed a simple microextraction method for extraction and pre-concentration of trace amounts of fluoroquinolones as polar model drugs in egg samples using an ionic surfactant. The present method, based on the use of silica-magnetite nanoparticles modified with anionic surfactant aggregates, was applied for determination of fluoroquinolones. The target analytes were converted into their ion pair complexes with dodecyl benzene sulphonic acid sodium (SDBS) and then extracted into an organic solvent. The factors influencing the extraction were investigated and optimized. Under optimum extraction conditions, a limit of detection (LOD) as small as 0.0029 mg L À1 and a linear dynamic range of 0.0083-0.166 mg L À1 were obtained for enrofloxacin in egg samples. The obtained results indicate that the proposed method is efficient, fast and inexpensive for extraction and determination of fluoroquinolones in real samples. a Linear dynamic range. b Correlation coefficient. c Limit of detection. d Limit of quantication. e Relative standard deviation (n ¼ 3). f Relative recovery. g Y and X are uorescence emission and concentration of the analytes (mg mL À1 ).This journal is

Advances in Solid Phase Microextraction and Perspective on Future Directions

“…Optimization of various parameters such as sample pH and ionic strength, amount of surfactant, sorbent, donor phase volume, extraction time, and desorption conditions was carried out for the development of a robust method that not only showed comparable performance to other approaches previously reported in the literature but also involved a simpler and greener analytical routine. 280 As a food matrix of animal origin, while honey does not have significant nutritional value, it is nonetheless a valuable food commodity often used as a sweetener, with its distinctive flavor making it a worldwide, highly commercialized product for human consumption. As honey is produced by bees from the sugary secretions of plants, it can possess characteristic aroma bouquets related to the region and plants of production but also concentrate various contaminants present in the secretions of said plants.…”

“…Extraction was carried out by formation of ion-pair complexes with surfactants. Optimization of various parameters such as sample pH and ionic strength, amount of surfactant, sorbent, donor phase volume, extraction time, and desorption conditions was carried out for the development of a robust method that not only showed comparable performance to other approaches previously reported in the literature but also involved a simpler and greener analytical routine …”

High-Throughput and High-Efficient Micro-solid Phase Extraction Based on Sulfonated-Polyaniline/Polyacrylonitrile Nanofiber Mats for Determination of Fluoroquinolones in Animal-Origin Foods

“…For further evaluation, the comprehensive comparison of the proposed method with the reported methods in the literature for the determination of FQs in food samples is shown in Table S4. − The proposed method could be applied to a wide range of food matrices including animal muscle, liver, kidney, milk, and egg samples. The extraction solvents of most of the existing methods were organic solvents.…”

Nano‐structured gemini‐based supramolecular solvent for the microextraction of cyhalothrin and fenvalerate

“…Surfactants, conventionally composed mainly of a polar head group and a long hydrophobic tail‐group, have increasing applications in analytical chemistry . In 2007, Pérez‐Bendito et al.…”

“…Surfactants, conventionally composed mainly of a polar head group and a long hydrophobic tail-group, have increasing applications in analytical chemistry [11][12][13]. In 2007, Pérez-Bendito et al introduced a new microextraction method based on supramolecular solvents (SUPRASs), which is based on analyte partitioning between an alkyl carboxylic acid-based self-assembled nano-structured solvent and an aqueous sample solution [14].…”