Journal of chromatographic science, 46(9), 783-786 (2008-11-15)
A high-performance liquid chromatography method is presented for the enantioseparation and quantitation of tetramethrin. The separation is achieved on amylose 3,5-dimethylphenyl-carbamate CSP (Chiralpak AD-H column) using a mobile phase consisting of a mixture of n-hexane-ethanol-2-propanol (99:0.9:0.1, v/v/v). Baseline chiral separation
Type I and type II pyrethroids and dichlorodiphenyltrichloroethane (DDT) are known to modulate the sodium channel to cause the hyperexcitatory symptoms of poisoning in animals. However, since the degrees to which neuronal sodium channel parameters are altered differ, a question
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 69(4), 1165-1169 (2007-07-27)
The simultaneous determination of cypermethrin and tetramethrin mixtures by using spectrophotometric method is a difficult problem in analytical chemistry, due to spectral interferences. By multivariate calibration methods, such as partial least squares (PLS) regression, it is possible to obtain a
Type I and type II pyrethroids are known to modulate the sodium channel to cause persistent openings during depolarization and upon repolarization. Although there are some similarities between the two types of pyrethroids in their actions on sodium channels, the
The differential effects of the pyrethroid tetramethrin on tetrodotoxin-sensitive (TTX-S) and tetrodotoxin-resistant (TTX-R) single sodium channel currents in rat dorsal root ganglion (DRG) neurons were investigated using the outside-out configuration of patch-clamp technique. Channel conductances were 10.7 and 6.3 pS
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