Triazine-Based Polymeric Network-Modified Magnetic Nanoparticles (NPs) as an Efficient Sorbent to Extract 1-Naphthylacetic Acid in Fruit and Vegetable Samples

• Published in: Chromatographia 2020-07, Vol.83 (7), p.863-871
• Main Authors: Moradi Shahrebabak, Sepideh, Faraji, Mohammad, Saber-Tehrani, Mohammad, Shabanian, Meisam, Aberoomand-Azar, Parviz
• Format: Article
• Language: English
• Subjects: Analytical Chemistry; Chemistry; Chemistry and Materials Science; Chromatography; Emission analysis; Field emission microscopy; Field emission spectroscopy; Fourier transforms; Fruits; Infrared analysis; Infrared spectroscopy; Laboratory Medicine; Linearity; Magnetic measurement; Nanoparticles; Original; Pharmacy; Proteomics; Sorbents; Thermogravimetric analysis; Vegetables
• ISSN: 0009-5893; 1612-1112
• DOI: 10.1007/s10337-020-03905-z

In this study, a triazine-based polymeric network-modified magnetic nanoparticles (TPN/MNPs) was synthesized and applied as adsorbent for extraction of 1-naphthylacetic acid (NAA) from the fruit and vegetable samples followed by HPLC determination. The synthesized TPN/MNPs were characterized by the vibrating sample magnetometry (VSM), Fourier-transform infrared spectroscopy (FT-IR), field emission-scanning electron microscopy (FE-SEM) and thermogravimetric analysis (TGA). The factors influencing the extraction efficiency including pH, sorbent amount, salt concentration, extraction time, sample volume and desorption conditions were studied and optimized. Under the optimal conditions, good linearity was obtained in the range of 1.0–500 µg L −1 . The limit of detection (LOD) and limit of quantification (LOQ) were 0.3 µg L −1 and 1.0 µg L −1 , respectively. The relative standard deviations (RSDs) of intra-day and inter-day were less than 9.5% at 10 and 100 µg L −1 of NAA. The method was successfully applied for extraction and determination of NAA in the fruit and vegetable samples including cucumber, tomato and apple and good recoveries were obtained (94.5–96.5%).