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US 2026/0210901 A1Published application
Sensor for measuring ionized magnesium
AssigneeInstrumentation Laboratory Company
InventorsAnahita Karimi, Sohrab Mansouri
Life of this patent
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Abstract
An example sensor includes a conductive electrode and an ion-selective membrane over the conductive electrode. The ion-selective membrane includes an ionophore that is selective for ionized magnesium (iMg) and at least two types of anionic lipophilic salts. The at least two types of anionic lipophilic salts may include one or more fluorinated borate salts and one or more chlorinated borate salts.
Claims21
1-20. (canceled)
A sensor comprising:
- a conductive electrode;
- an ion-selective membrane over the conductive electrode, the ion-selective membrane comprising:
- an ionophore that is selective for ionized magnesium (iMg);
- and
- anionic lipophilic salt;
- and
- a sample path adjacent to the ion-selective membrane.
4 more elements
A system comprising:
- a test instrument comprising a fluid path to deliver a test sample to a sensor, the sensor comprising:
- a conductive electrode;
- and
- an ion-selective membrane over the conductive electrode, the ion-selective membrane comprising:
- an ionophore that is selective for ionized magnesium (iMg);
- and
- anionic lipophilic salt.
- wherein the conductive electrode has an electrical potential that is based on an activity of iMg in a test sample;
- an electrical contact to measure the electrical potential;
- one or more processing devices to determine an amount of iMg in the test sample based on the electrical potential;
- and
- a display to display graphically at least the amount of iMg in the test sample.
9 more elements
A method for obtaining an ionized magnesium (iMg) measurement from a test sample, the method comprising
- receiving the test sample in a sample receptable of a test instrument;
- moving the test sample to a sample path of an iMg sensor of the test instrument;
- allowing Mg ions in the sample to form complexes with ionophores of a membrane of the iMg sensor;
- measuring an electrical potential of the membrane to obtain an electrical potential measurement;
- and
- processing the electrical potential measurement to obtain an iMg measurement.
3 more elements
Dependencies are inferred from the claim text.