Rapid and reliable determination of p-nitroaniline in wastewater by molecularly imprinted fluorescent polymeric ionic liquid microspheres

Xing, Lidan; Yang, Yiwen; Zeng, Yanbo; Li, Lei; Wu, Xiaohua

doi:10.1016/j.bios.2017.07.041

Cited by 71 publications

(20 citation statements)

References 42 publications

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“…Recent studies showed that the preparation of MIMs using precipitation polymerisation has successfully led to different templates [ 55 , 56 , 58 , 59 , 60 , 61 , 90 , 91 , 92 , 93 , 94 ] and sensors [ 107 ], and extracted various analytes from natural ingredients [ 95 , 111 , 112 , 113 ], biological samples [ 62 , 63 , 64 , 65 , 108 ], foods [ 96 , 97 , 109 , 114 , 115 ] and wastewater [ 98 , 99 ]. As an easy, simple and commonly used strategy for producing MIMs, precipitation polymerisation has great potential for developing advanced strategies in combination with other approaches (molecularly imprinted solid phase extraction (MISPE), biochemical sensors, high performance liquid chromatography (HPLC), etc.)…”

Section: Preparation Of Molecularly Imprinted Microspheresmentioning

confidence: 99%

Microsphere Polymers in Molecular Imprinting: Current and Future Perspectives

et al. 2020

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Molecularly imprinted polymers (MIPs) are specific crosslinked polymers that exhibit binding sites for template molecules. MIPs have been developed in various application areas of biology and chemistry; however, MIPs have some problems, including an irregular material shape. In recent years, studies have been conducted to overcome this drawback, with the synthesis of uniform microsphere MIPs or molecularly imprinted microspheres (MIMs). The polymer microsphere is limited to a minimum size of 5 nm and a molecular weight of 10,000 Da. This review describes the methods used to produce MIMs, such as precipitation polymerisation, controlled/‘Living’ radical precipitation polymerisation (CRPP), Pickering emulsion polymerisation and suspension polymerisation. In addition, some green chemistry aspects and future perspectives will also be given.

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Section: Preparation Of Molecularly Imprinted Microspheresmentioning

confidence: 99%

Microsphere Polymers in Molecular Imprinting: Current and Future Perspectives

et al. 2020

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“…On the other hand, it may poison the blood of humans and even cause cancer. Lu et al [129] synthesized a molecularly imprinted polymeric ionic liquid (MIPIL) microsphere to detect p -NA from wastewater samples. The resultant sorbent had a high selective recognition force because the electron-rich group, alkenyl imidazole, in the IL functional monomer improved the π - π stacking, electronic, and hydrogen bonding between the p -NA and MIPIL.…”

Section: Applications Of Ionic Liquids As Sorbents Modifiersmentioning

confidence: 99%

Determination of Heavy Metal Ions and Organic Pollutants in Water Samples Using Ionic Liquids and Ionic Liquid-Modified Sorbents

Tian

Fang

Yan

et al. 2019

Journal of Analytical Methods in Chemistry

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Water pollution, especially by inorganic and organic substances, is considered as a critical problem worldwide. Several governmental agencies are listing an increasing number of compounds as serious problems in water because of their toxicity, bioaccumulation, and persistence. In recent decades, there has been considerable research on developing analytical methods of heavy metal ions and organic pollutants from water. Ionic liquids, as the environment-friendly solvents, have been applied in the analytical process owing to their unique physicochemical properties. This review summarizes the applications of ionic liquids in the determination of heavy metal ions and organic pollutants in water samples. In addition, some sorbents that were modified physically or chemically by ionic liquids were applied in the adsorption of pollutants. According to the results in all references, the application of new designed ionic liquids and related sorbents is expected to increase in the future

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“…An additional interest is that nitroanilines are a family of chemical compounds used in the manufacture of dyes, pharmaceuticals and pesticides [25], so it is important to characterise them from a quality control need as different isomers have different properties and reactivities. They also exhibit a high toxicity, particularly the [1, 4] isomer [26], so it is relevant to develop analytical methods for quick, selective and reliable identification for environmental purposes.…”

Section: Introductionmentioning

confidence: 99%

Selective Reagent Ion Mass Spectrometric Investigations of the Nitroanilines

Olivenza-León

Mayhew

González-Méndez

2019

J. Am. Soc. Mass Spectrom.

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This paper presents an investigation of proton and charge transfer reactions to 2-, 3- and 4-nitroanilines (C6H6N2O2) involving the reagent ions H3O+·(H2O)n (n = 0, 1 and 2) and O2+, respectively, as a function of reduced electric field (60–240 Td), using Selective Reagent Ion–Time-of-Flight–Mass Spectrometry (SRI–ToF–MS). To aid in the interpretation of the H3O+·(H2O)n experimental data, the proton affinities and gas-phase basicities for the three nitroaniline isomers have been determined using density functional theory. These calculations show that proton transfer from both the H3O+ and H3O+·H2O reagent ions to the nitroanilines will be exoergic and hence efficient, with the reactions proceeding at the collisional rate. For proton transfer from H3O+ to the NO2 sites, the exoergicities are 171 kJ mol−1 (1.8 eV), 147 kJ mol−1 (1.5 eV) and 194 kJ mol−1 (2.0 eV) for 2-, 3- and 4-nitroanilines, respectively. Electron transfer from all three of the nitroanilines is also significantly exothermic by approximately 4 eV. Although a substantial transfer of energy occurs during the ion/molecule reactions, the processes are found to predominantly proceed via non-dissociative pathways over a large reduced electric field range. Only at relatively high reduced electric fields (> 180 Td) is dissociative proton and charge transfer observed. Differences in fragment product ions and their intensities provide a means to distinguish the isomers, with proton transfer distinguishing 2-nitroaniline (2–NA) from 3- and 4-NA, and charge transfer distinguishing 4-NA from 2- and 3-NA, thereby providing a means to enhance selectivity using SRI–ToF–MS.

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Rapid and reliable determination of p-nitroaniline in wastewater by molecularly imprinted fluorescent polymeric ionic liquid microspheres

Cited by 71 publications

References 42 publications

Microsphere Polymers in Molecular Imprinting: Current and Future Perspectives

Microsphere Polymers in Molecular Imprinting: Current and Future Perspectives

Determination of Heavy Metal Ions and Organic Pollutants in Water Samples Using Ionic Liquids and Ionic Liquid-Modified Sorbents

Selective Reagent Ion Mass Spectrometric Investigations of the Nitroanilines

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