Method and composition for halohydrocarbon detection

Details Method and composition for halohydrocarbon detection Method and composition for halohydrocarbon detection

1993-06-25

1994-10-25

Redding, David A.

Chemistry: analytical and immunological testing

Halogen containing

436165, 436167, 436169, 436172, 436902, 25218311, G01N 2178, G01N 2164

Patent

active

053588754

ABSTRACT:
A sensing chemistry for halogenated hydrocarbons includes pyridine or a pyridine derivative and a strong organic alkoxide base. The sensing chemistry may be in a nonaqueous organic solvent or in a solid state matrix. The base reacts with the halohydrocarbon to produce a carbene intermediate reaction product, which in the absence of water preferentially reacts with the pyridine to form a colored and/or fluorescent product.

REFERENCES:
patent: 4847428 (1989-07-01), Gu
patent: 5051513 (1991-09-01), Jelich
patent: 5227560 (1993-07-01), Clement et al.

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