Process for determining the alcohol content of a biological samp

Details Process for determining the alcohol content of a biological samp Process for determining the alcohol content of a biological samp

1994-08-25

1995-11-28

Housel, James C.

Chemistry: analytical and immunological testing

Oxygen containing

Hydroxyl containing

436127, 436132, 436169, 436172, 436178, 422 84, 422 85, 422 86, 422 87, G01N 3314

Patent

active

054707552

ABSTRACT:
Hemiacetals are disclosed which correspond to the following formula II ##STR1## in which R' is an aliphatic or cycloaliphatic residue,
Ar is an unsubstituted or substituted monocyclic or polycyclic aromatic or heteroaromatic residue and
X.sup.1, X.sup.2 and X.sup.3 are selected from the group consisting of hydrogen, alkyl, alkenyl, alkynyl, fluoro, chloro, bromo and nitro, wherein however at least one of said substituents has to be selected from the stated halo atoms or nitro. The hemiacetals are formed reversibly from an alcohol and a corresponding keto compound and the hemiacetals of formula II differ from the corresponding keto compounds as to their light absorption in the ultraviolet, visible or infrared range, or a fluorescence or luminescence is created or quenched when the keto compound is converted into the hemiacetal of formula II. Said reaction can be performed in sensors which are used for the optical determination of alcohols.

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