General
Information
- MCPA or
2-methyl-4-chlorophenoxyacetic acid is a powerful, selective,
widely-used phenoxy herbicide. The pure compound is a brown-colored
powder.
- MCPA does not dissolve
well in water, but is soluble in organic (carbon-containing)
solvents. MCPA is usually sold commercially in solution with organic
solvents. Physical and toxicological properties are dependent on the
nature of the solvent used.
Process
- Capillary zone
electrophoresis (CZE) with diode array detection was successfully
used for the analysis of 2-methyl-4-chlorophenoxyacetic acid (MCPA)
herbicide in an aqueous commercial plant protection product.
- Plasmid pJP4 is an
80-kilobase, IncPl, broad-host-range coWugative plasmid of
Alckligenes eutrophus encoding resistance to mercuric chloride and
phenyl mercury acetate and degradation of 2,4-dichlorophenoxyacetic
acid, 2-methyl-4-chlorophenoxyacetic acid, and 3-chlorobenzoate.
- The mecoprop-degrading
community could also degrade 2,4-dichlorophenoxyacetic acid and
2-methyl-4-chlorophenoxyacetic acid but not
2,4,5-trichlorophenoxyacetic acid.
Application
& Report
-
2-Methyl-4-chlorophenoxyacetic acid (MCPA) is a widely used
phenoxyalkanoic acid herbicide and subject to aerobic microbial
degradation.
- Earthworms stimulate
both growth and activity of MCPA-degrading bacteria in soil.
- M.C.P.A.
(2-methyl-4-chlorophenoxyacetic acid) is one of the recently
developed hormone weed-killers and is freely available without
control.
- The mortality and
cancer incidence of employees at a company which has manufactured,
formulated, and sprayed 2 methyl-4 chlorophenoxyacetic acid (MCPA)
and other phenoxy acid herbicides.
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