Method of use of compositions of biocides and fluorescent indica

Details Method of use of compositions of biocides and fluorescent indica Method of use of compositions of biocides and fluorescent indica

1995-11-14

1997-12-30

Saucier, Sandra E.

Drug, bio-affecting and body treating compositions

Identification or warning feature

Color or color change feature

422 3, 422 28, 422 37, 422 40, 210745, A61K 4900, C02F 100

Patent

active

057026840

ABSTRACT:
A concentration of microbiocides added to fluid systems is monitored by a fluorescence emission method which is based upon the measurement of the fluorescence intensity of an inert fluorescent additive which is added to the microbiocide composition prior to its introduction into the fluid system. Optionally, the fluorescent additive may be metered separately into the fluid system in direct proportion to the amount of industrial microbiocide added. Biocide compositions containing inert fluorescent additives are also disclosed. Preferably the fluid system is an industrial aqueous system. Preferred combinations of biocide and fluorescent additive are glutaraldehyde/1,5-naphthalene disulfonic acid, glutaraldehyde/1,3,6,8-pyrene tetrasulfonic acid, isothiazolone/1,5-naphthalene disulfonic acid, isothiazolone/1,3,6,8-pyrene tetrasulfonic acid, glutaraldehyde/fluorescein, alkyl-dimethylbenzyl ammonium chloride quaternary/2-naphthalene sulfonic acid and 2-(decylthio)-ethanamine/2-naphthalene sulfonic acid.

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