Eleanor V. Crabtree

Fluorescence Detection of Specific Insecticides, Rodenticides, Herbicides and Fungicides

Abstract It has been found that certain insecticides, rodenticides, herbicides and fungicides on solid state supports give fluorescence when sprayed with solutions containing 2-diphenylacetyl-1,3-indandione-1-imine derivatives. Compounds that give high fluorescence include DDT, Chlordane, Heptachlor, Toxaphene, Methoxychlor, Diazinon, Carbophenothion, DDVP, Warfarin, phenoxyacetic acid, methyl l-naphthaleneacetate, Chloranil, Dichlone, and 1,4,5,6,7,7-hexachloro-N-(ethylmercuri)-5-norbornene-2,3-dicarboximide. The effect is based on fluorescence enhancement of the 2-diphenylacetyl-1,3-indandione-l-imine derivatives as a result of molecular complexation with the compound detected.

Reagents for the Detection of α-Hydroxy Acid Esters

Abstract A simple, specific, and direct test for α-hydroxy acid esters is described. It is based on enhancing the fluorescence of 2-diphenylacetyl-1, 3-indandione-1-imine derivatives through molecular complexes with the α-hydroxy acid esters in the solid state.

Chemical Detection Of Selected Hallucinogens In Water

Abstract A specific and non-destructive test for basic esters of benzilic and α-glycolic acids in water is described. The compounds are collected on a glass fiber filter as water insoluble complexes with sodium tetraphenylboron. The filter is dried and sprayed with a 2-diphenylacetyl-l, 3-indandione-l-imine derivative. A positive test is the visual observation of fluorescence.

A multicyclic catalytic scheme for the vapor detection of organophosphorus compounds

Abstract A multicyclic catalytic scheme for the vapor detection of the organophosphorus compound isopropyl methylphosphonofluoridate, GB, is described. A detector tube containing silica gel impregnated with 1-phenyl-1,2,3-butanetrione 2-oxime, o-dinitrobenzene, and p-nitrobenzaldehyde detected 0.12 and 0.3 μg of GB in 5 and 3 minutes, respectively.

MICROCHEMICAL DETECTION OF ELECTROPHILIC CHEMICALS

Abstract N-Alkylformamides are shown to be useful in the detection of electrophiles by the formation of isocyanides. Down to 0.2 μ of tosyl chloride is detectable by combining the formamide dehydra...