Chiral Pesticides with Asymmetric Sulfur: Extraction, Separation, and Determination in Different Environmental Matrices

Separations

article

Rocío López-Cabeza¹  Antonio Francioso¹ 

[1] Departamento de Química Orgánica, Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna;Instituto de Recursos Naturales y Agrobiología de Sevilla;Dipartimento di Chimica Biologica “A. Rossi Fanelli”, Sapienza Università di Roma

关键词: chirality;    asymmetric sulfur;    enantioselectivity and stereoselectivity;    pesticides;    extraction methods;    chromatographic techniques;    capillary electrophoresis;    mass spectrometry;   

DOI  :  10.3390/separations9020029

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

Chiral pesticides with S atoms as asymmetric centers are gaining great importance in the search for new pesticides with new modes of action. As for the rest of the chiral pesticides, the determination of the stereoisomers separately has become crucial in the environmental risks assessment of these pesticides. Therefore, the development of suitable extraction and clean-up methods as well as efficient stereoselective analytical techniques for stereoisomers determination in environmental samples is essential. Currently, liquid/solid phase extraction, microextraction, and QuEChERS-based methods are most commonly used to obtain chiral pesticides from environmental samples. Gas, liquid, and supercritical fluid chromatography together with capillary electrophoresis techniques are the most important for the determination of the stereoisomers of chiral pesticides containing S atoms in its structure. In this study, all these techniques are briefly reviewed, and the advantages and disadvantages of each are discussed.

【 授权许可】

CC BY