초록 ▼

A test means for determining the ionic strength or specific gravity of an aqueous test sample, the test means comprising a weakly acidic or weakly basic polyelectrolyte which is at least partially neutralized, and an indicator means capable of producing a detectable response to ion exchange between

A test means for determining the ionic strength or specific gravity of an aqueous test sample, the test means comprising a weakly acidic or weakly basic polyelectrolyte which is at least partially neutralized, and an indicator means capable of producing a detectable response to ion exchange between the polyelectrolyte and the sample. The test device comprises a carrier matrix incorporated with the test means, and the method for its use comprises contacting an aqueous test sample with the device and observing a detectable response.

대표청구항 ▼

A test means for determining the ionic strength or specific gravity of an aqueous test sample, said test means comprising a weakly acidic or weakly basic polyelectrolyte polymer, said polymer being at least about 50 percent neutralized, and indicator means capable of producing a detectable response

A test means for determining the ionic strength or specific gravity of an aqueous test sample, said test means comprising a weakly acidic or weakly basic polyelectrolyte polymer, said polymer being at least about 50 percent neutralized, and indicator means capable of producing a detectable response to ion exchange between said polyelectrolyte and said sample.