Insecticides and herbicides in soils 69
Figure 3.3 Peak Height of 60 ng Atrazine standard versus concentration of ammonium nitrate.
Reprinted from F. Cotterill, Analyst, 1979, 104, 878 © 1979, Royal Society of Chemistry,[46].
Table 3.3 Miscellaneous methods for the determination of triazine herbicides in soil extracts.
Extraction
Triazine Herbicide
method
Comments
Reference
Atrazine, Simazine
–
Capillary, isotachoelectrophoresis
61
Atratone, Prometryn,
Limit of detection: 10 µg/kg soil
Desmetryn, Methoprotryne
Atrazine
–
Enzyme immunoassay
62
(tube system)
Cyanazine,Atrazine
–
Enzyme immunoassay. Limit of
63, 64
detection: 0.2 µg/kg
Atrazine
–
Enzyme immunoassay, Limit of
65, 66
detection: 3.5 µg/kg
Anachlor,Atrazine,
Solid phase
Enzyme immunoassay
67, 68
Capton, Carbofuran,
microextraction
Metolachlor, 2,4-D
Atrazine, Chlorpyrifos, Diuron –
Derivative spectrophotometry
69
Atrazine
–
Thin-layer chromatography,
70, 71
followed by UV absorption by
scanning at 222 nm
Triazine herbicides
–
Sorption behaviour in reference soils 72
Source: Author’s own files.
It was shown that in every instance the peak height was increased while the peak
area remained constant. All of the columns used for this study were aged by repeated
sample injections, but had not deteriorated to the point where they would normally be
replaced. Miscellaneous Methods for Determination of triazine-herbicide are reviewed
in Table 3.3.