Solid phase extraction (SPE)

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Table of contents

Remerciements
Liste des publications et communications
Résumé
Abstract
Liste des abréviations
Introduction générale
PART I: BIBLIOGRAPHIC STUDY
Chapter I: Presence of organophosphorus pesticides in vegetable oils
I.1. Pesticides, generalities
I.2. Vegetable oils
I.2.1. Regulation of organophosphorus in vegetable oils
I.2.2. Organophosphorus pesticides
I.2.3. Physical and chemical properties
I.3. Extraction techniques of organophosphorus from vegetable oils
I.3.1. Liquid-liquid Extraction (LLE)
I.3.2. Solid phase extraction (SPE)
I.3.3. Dispersive Solid Phase Extraction (dSPE)
I.3.4. Matrix Solid Phase Dispersion (MSPD)
I.3.5. Solid Phase Microextraction (SPME)
I.4. Conclusions
References
Chapter II: Molecularly imprinted polymers for the determination of organophosphorus pesticides in complex samples
II. Review
II.1. Abstract
II.2. Introduction
II.3. Synthesis of MIPs
II.4. MIP characterization
II.5. MIP for selective extraction
II.5.1. MIP-SPE of OPPs
II.5.2. Other extraction methods
II.6. MIP used as sensors
II.7. Miscellaneous applications
II.8. Conclusions
References
PART II: EXPERIMENTAL
Chapter III: Synthesis and application of molecularly imprinted polymers for the selective extraction of organophosphorus pesticides from vegetable oil
III. Article 1
III.1. Abstract
III.2. Introduction
III.3. Materials and methods
III.3.1. Chemicals
III.3.2. Apparatus and analytical conditions
III.3.3. Synthesis of the MIPs
III.3.4. SPE procedure applied in pure media
III.3.5. Extraction of OPs from the vegetable oils
III.4. Results and discussions
III.4.1. Development of the LC-UV and LC-MS analyses
III.4.2. Screening of the synthesis conditions
III.4.3. Potential of the MIPs towards OPs
III.4.4. Study of the capacity of the MIP in pure media
III.4.5. Extraction of OPs from different oils
III.4.6. Optimization of the SPE procedure using almond oil
III.5. Conclusions
References
Chapter IV: Synthesis and characterization of molecularly imprinted silica for the selective extraction of organophosphorus pesticides from almond oil
IV. Article 2
IV.1. Abstract
IV.2. Introduction
IV.3. Materials and methods
IV.3.1. Chemicals
IV.3.2. Apparatus and analytical conditions
IV.3.3. Synthesis of molecularly imprinted silica sorbents
IV.3.4. Characterization of four MISs in pure medium
IV.3.5. MIS applied to almond oil extract
IV.4. Results and discussions
IV.4.1. Choice of conditions of synthesis of MISs
IV.4.2. Comparison of the synthesized MISs
IV.4.3. Repeatability of the extraction procedure
IV.4.4. Optimization of the extraction of OPs from almond oil
IV.4.5. Influence of a LLE step prior MISPE
IV.4.6. Sensitivity of the applied analytical method
IV.5. Conclusions
References
Chapter V: Reduction of matrix effects using molecularly imprinted silica applied to the extraction of organophosphorus pesticides from vegetable oils
V. Article 3
V.1. Abstract
V.2. Introduction
V.3. Materials and methods
V.3.1. Chemicals
V.3.2. Apparatus and analytical conditions
V.3.3. Synthesis of molecularly imprinted silica (MIS) sorbents
V.3.4. Solid phase extraction procedure in pure media
V.3.5. Extraction procedure of OPs from vegetable oils
V.4. Results and discussions
V.4.1. Repeatability of the MIS synthesis
V.4.2. Study of the capacity of the MIS in pure medium
V.4.3. Extraction of DMT and FSX from various vegetable oils
V.4.4. Evaluation of the matrix effects
V.4.5. Sensitivity of the applied method on the three vegetable oils
V.5. Conclusions
References