ISSN:
1618-2650
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Summary A method is described for the determination of tetramethrin (neo-pynamin) by differential pulse voltammetry with a carbon paste electrode modified with 10% (w/w) sepiolite. Preconcentration was carried out under open circuit conditions in 0.01 mol/l acetic acid/potassium acetate medium at pH 5.3 over 10 min, recording the voltammogram in 0.01 mol/l of KH2PO4/K3PO4 at pH 12. This led to the appearance of a peak at −1.32 V against SCE at 40 mVs−1 and a pulse amplitude of 100 mV. Under these conditions determination limits of 45 ng ml−1 were achieved. The method was applied to the determination of tetramethrin in soil and water samples.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00483575
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