3m Innovative Properties Company

Minnesota Mining and Manufacturing Company

John Stephen Marhevka

Donald F Hagen

Yuri Cheburkov

Fred Lynn DeRoos

Mark Eugene Mueller

Venkateswarlu Pothapragada

Glenn Delmont Johnson

Fluoroalkene-nucleophile adducts for analysis and removal of fluoroalkenes

A method for removing one or more fluorinated alkenes from a fluid comprises the step of contacting the fluid with an N-, S-, or P-containing nucleophile for a time sufficient to form an N-, S-, or P-containing nucleophile-fluoroalkene adduct. The nucleophile, and therefore the adduct, can be covalently bonded, coated or sorbed to a particulate support which can be enmeshed in a porous, fibrous web. In a preferred embodiment the fluorinated alkene can have the formula ##STR1## wherein A=F or R.sub.f ; X=H, F, Cl, R.sub.f, or YR.sub.f ; Z=H, F, Cl, or R.sub.f ; and Y=O, N, or S; with the proviso that at least one A=F, and at most one of Z and X is H; wherein each R.sub.f is independently selected from the group consisting of highly fluorinated or perfluorinated alkyl groups; and a combination of any two R.sub.f groups can be linked to form a cyclic structure. The R.sub.f alkyl chains may contain from 1-20 carbon atoms, with 1-12 carbon atoms preferred. The R.sub.f alkyl chains may be straight, branched, or cyclic. Preferably, R.sub.f is CF.sub.3, C.sub.2 F.sub.5, or C.sub.3 F.sub.7.

Fluoroalkene-nucleophile adducts for analysis and removal of

An apparatus and method for analyzing a sample of an inorganic or organic material, wherein the sample is in a discharge tube within a plasma cavity interfaced to an analytical device and a high frequency-sustained radiation-induced excitation plasma is initiated and sustained in the plasma cavity, which plasma is capable of causing the sample to pyrolyze and emit radiation, which emitted radiation or resulting atomic and molecular constituents may be analyzed,

High frequency radiation-induced plasma analysis of volatile or

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Maplewood, MN, United States of America

John Stephen Marhevka