-
Categories
-
Pharmaceutical Intermediates
-
Active Pharmaceutical Ingredients
-
Food Additives
- Industrial Coatings
- Agrochemicals
- Dyes and Pigments
- Surfactant
- Flavors and Fragrances
- Chemical Reagents
- Catalyst and Auxiliary
- Natural Products
- Inorganic Chemistry
-
Organic Chemistry
-
Biochemical Engineering
- Analytical Chemistry
-
Cosmetic Ingredient
- Water Treatment Chemical
-
Pharmaceutical Intermediates
Promotion
ECHEMI Mall
Wholesale
Weekly Price
Exhibition
News
-
Trade Service
Solid-phase extraction (SPE) represents a suitable way to clean up and preconcentrate samples containing traces of chlorinated phenoxyacids. High selectivity levels may be obtained using columns packed with materials based on well-defined molecular recognition mechanisms, such as immunoaffinity columns. SPE procedures involving molecular imprinted polymers (MISPE, molecular imprinted solid-phase extraction) have been proposed as a valid substitute for immunoaffinity procedures because of their simplicity of preparation and high stability to extreme chemical conditions. Here, we describe the preparation and the use of a polymer obtained by imprinting with the herbicide 2,4,5-trichlorophenoxyacetic acid as a molecular imprinted SPE sorbent. The polymer will be useful for extracting and concentrating selectively several strictly related phenoxyacids (2,4,5-trichlorophenoxyacetic acid; 2,4-dichlorophenoxyacetic acid; (
R,S
)-2-(2,4,5- trichlorophenoxy)-propionic acid; (
R,S
)-2-(2,4-dichlorophenoxy)-propionic acid; 2-methyl- 4-chlorophenoxyacetic acid; and (
R,S
)-2-(2-methyl-4-chlorophenoxy)-propionic acid) from water samples before performing the analysis by capillary electrophoresis or high-performance liquid chromatography.
