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Tracer dyes are often used as surrogates to characterize pesticide spray drift and it is assumed that they accurately reflect analytical measurement of active ingredients; however, the validity of this assumption remains inconclusive. Consequently, the influence of measurement technique on the magnitude of deposition of spray drift was investigated using spray drift samples evaluated by traditional...
Coherent low frequency (100-125 cm -1 ) nuclear motion was detected in the cis → trans condensed phase isomerization of stilbene. A mode, associated with phenyl torsional motion, has a vibrational dephasing time of 100 fs and exhibits solvent-dependent wavepacket dynamics. Selective probe wavelengths (600, 650 and 690 nm) exhibit phase shifts for the wavepacket dynamics that are also...
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