Asymmetric sandwich membrane system having reduced ascorbate int

Details Asymmetric sandwich membrane system having reduced ascorbate int Asymmetric sandwich membrane system having reduced ascorbate int

1991-04-30

1992-11-03

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

210641, 210490, 422 56, B01D 6900

Patent

active

051604361

ABSTRACT:
Disclosed is a diagnostic test device which comprises a fluid permeable structural support member having on one side thereof a layer of a macroporous membrane comprising polyethyleneimine impregnated with iodate ion and on the other side of the support member having a layer of a microporous membrane having dispersed therein a chromogenic indicator capable of providing a colored response upon being oxidized.
The intensity of the colored response is less subject to ascorbate interference due to the activity of the iodate ion.

REFERENCES:
patent: 3966439 (1976-06-01), Vennos
patent: 4169014 (1979-09-01), Goldberg
patent: 4774192 (1988-09-01), Terminiello et al.
patent: 4824639 (1989-04-01), Hildenbrand et al.
patent: 5039421 (1991-08-01), Linder et al.

Affiliated with

Also associated with

Rating

Asymmetric sandwich membrane system having reduced ascorbate int does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Asymmetric sandwich membrane system having reduced ascorbate int, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Asymmetric sandwich membrane system having reduced ascorbate int will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2048480