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Questions and Answers
What is the primary function of an ion selective electrode?
What is the primary function of an ion selective electrode?
What type of membrane is used in glass membrane electrodes?
What type of membrane is used in glass membrane electrodes?
What is the principle behind the operation of an ion selective electrode?
What is the principle behind the operation of an ion selective electrode?
What is an advantage of using ion selective electrodes?
What is an advantage of using ion selective electrodes?
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What is the name of the machine used for Arterial Blood Gas Analysis?
What is the name of the machine used for Arterial Blood Gas Analysis?
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What is measured by an Arterial Blood Gas Analyzer?
What is measured by an Arterial Blood Gas Analyzer?
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What is calculated by an Arterial Blood Gas Analyzer?
What is calculated by an Arterial Blood Gas Analyzer?
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What type of ions can be sensed using glass membrane electrodes?
What type of ions can be sensed using glass membrane electrodes?
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Study Notes
Ion Selective Electrode
- An ion selective electrode (ISE) is a membrane electrode that senses ions in various clinical or research samples, converting the activity of a specific ion into an electrical potential.
- ISEs generate potential in response to the presence of a solution of a specific ion, detecting specific ions only, making them sensors.
- The principle of ISE involves a thin membrane that allows only the specific ion to be transported, creating a potential difference through selective binding with sites within the membrane.
Glass Membrane Electrode
- Glass membrane electrodes are used for sensing univalent cations such as H+, Na+, etc.
Applications of Ion Selective Electrode
- ISEs are used to determine ions like Ca++, K+, Na+, Cl–, etc. in body fluids like plasma, serum, and sweat.
Advantages of Ion Selective Electrode
- Simple, low-cost, and easy to handle
- Can be used for the analysis of a continuous flow system
Arterial Blood Gas Analysis
- Arterial Blood Gas Analysis measures blood gas tension, arterial partial pressure of oxygen (PaO2) and carbon dioxide (PaCO2), pH, and oxygen saturation (SaO2)
- The machine used for analysis aspirates blood from a syringe and measures pH and the partial pressures of oxygen and carbon dioxide
- Bicarbonate concentration is also calculated
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Description
Learn about ion selective electrodes, a crucial tool in analytical chemistry used to detect specific ions in clinical and research samples.
