Mary L. Ketchersid

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Supercritical fluid extraction (SFE) with CO(2) has been successfully applied to herbicide extractions from soil. The objectives of this work were to compare extraction efficiency of atrazine from soil using different types and quantities of co-solvent modifiers under a specified set of SFE instrument conditions and to determine the ruggedness of an(More)
Supercritical fluid extraction (SFE) using CO(2) and solid-phase extraction (SPE) are two technologies recently discussed in the literature as alternatives to Soxhlet and liquid/liquid extraction (LLE). This research compared SFE and SPE extraction efficiency of two imidazolinone herbicides, AC263,222 and imazethapyr, from three soils. Recovery of the(More)
Phytotoxicity of metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] toward grain sorghum [Sorghum bicolor (L.) Moench] increased as soil moisture increased. This was found with both unprotected sorghum and sorghum protected with 1.25 g CGA-43089 [α([cyanomethoxy]imino)benzeneacetonitrile] per kg of seed. However, under(More)
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