Ion test means having a porous carrier matrix

Details Ion test means having a porous carrier matrix Ion test means having a porous carrier matrix

G - Physics

01

N

150/19, 150/7

G01N 21/78 (2006.01) G01N 33/52 (2006.01) G01N 33/84 (2006.01)

Patent

CA 1253057

ABSTRACT OF THE DISCLOSURE A test means for determining the presence of an ion in an aqueous test sample is disclosed, as well as a test device incorporating the test means, a method for preparing it and a method for using it. The test means comprises a porous carrier matrix incorporated, substantially uniformly, with a homogeneous hydro- phobic composition and with a buffering substance capable of providing a pH in the range of from about 5 to 10. The homogeneous hydrophobic composition con- tains an ionophore capable of forming a complex with the ion, a hydrophobic vehicle and a reporter sub- stance capable of interacting with the complex of ionophore and ion to produce a detectable response. In a preferred embodiment the homogeneous hydrophobic composition also contains a hydrophobic polymer. Other components such as wetting substances and an interferent removal system can be added to the test means. The method for preparing the test means comprises forming a homogeneous first mixture of the hydrophobic composition and an organic solvent; forming a homo- geneous second mixture of a buffering substance capable of providing a pH in the range of from about 5 to 10 and water or a water-miscible solvent or mixtures thereof; incorporating one of the first or second mixture with a porous carrier matrix; drying the incorporated matrix; incorporating the other of the first or second mixture with the dried matrix; and drying the doubly incorporated matrix. The test device comprises an elongated support member having an upper substantially flat face, the test means being affixed to the flat face of the support member.

462493

Affiliated with

Also associated with

Rating

Ion test means having a porous carrier matrix does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ion test means having a porous carrier matrix, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ion test means having a porous carrier matrix will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1221277