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Amperometric detection herbicides

Despite the high sensitivity of amperometric detection, its use in environmental applications has not been exploited accordingly. Nevertheless, a few examples include the MEKC analysis of herbicides in tap water and the CZE and MEKC analysis of aromatic amines in contaminated water samples. ... [Pg.920]

An amperometric immunosensor using sequential injection analysis techniques to detect the herbicide 2,4-D in water was described by Wilmer and Trau [102,103]. This rapid competitive EIA used an alkaline phosphatase-labelled monoclonal antibody directed against the herbicide and an immunoreactor with 2,4-D immobilized via BSA, either to Eupergit in a column or directly to the surface of a glass capillary. A detection limit of the immunosensor at 0.1 (jLg 2,4-D 1, without enrichment of the analyte, pointed to the feasibility of making automatic measurements of 2,4-D in drinking and ground water. [Pg.562]

Photosystem II (PSII) is part of the photosynthetic apparatus in cyanobacteria, algae and higher plants and catalyzes the light-induced transfer of electrons from water to plastoquinone via a set of delicately arranged cofiictors. It has a well known bindii site for diverse chemical compounds in its so-called D1 subunit and the ability to convert such a binding event into signals which can be easily detected by optical, potentiometric or amperometric systems. Due to these inherent properties PSII can be considered as a natural biosensor and has consequentially been used for the detection of herbicides and other pollutants in pilot studies. ... [Pg.46]

Pandard P, Rawson DM. An amperometric a al biosensor for herbicide detection employing a carbon cathode oxygen electrode. Environ Toxicol and Water Quality 1993 8 323-333. [Pg.82]

The reduction of benzyl bromide mediated by vitamin B12r, CoTSPc, and Co(salem) in a microemulsion under homogeneous conditions, resulted in products derived from the resulting radicals and anions . The reactions were mediated by Co species . Priyantha and Tambalo employed GCE coated with Co TPP or Ee TPP as electrocatalytic amperometric sensors for the detection of herbicides including 2,3-dichlorophenoxyacetic acid ... [Pg.319]


See other pages where Amperometric detection herbicides is mentioned: [Pg.68]    [Pg.45]    [Pg.143]    [Pg.45]    [Pg.124]    [Pg.214]    [Pg.71]    [Pg.410]    [Pg.157]    [Pg.57]    [Pg.148]    [Pg.48]    [Pg.48]    [Pg.2074]   
See also in sourсe #XX -- [ Pg.216 ]




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