PPT-Potentiometry and Ion-Selective Electrodes

1 Lecture 2 If metals are the only useful materials for constructing indicator electrodes then there would be few useful applications of potentiometry In 1901 Haber Fritz discovered the existence of a change in potential across a glass membrane when its two sides are in solutions of different acidity The existence of this membrane potential led to the development of a whole new class of indicator electrodes called ionselective electrodes ISEs . Keri Brophy-Martinez. Designs in Instrumentation. Electrochemistry. Electrochemistry. Basic principle. Electrodes are used to selectively measure particular ions. Instruments utilizing electrodes measure the potential difference (charge) that builds up at an interface when two different . and Ion-Selective Electrodes. 1. Lecture 1. 2. Basic Concepts. 3. Oxidation - Reduction Reactions . (. Redox. . rxns. ) involve the transfer of electrons from one species of the reactants to another. This results in an increase in oxidation number (O.N.) of a specific species and a complementary decrease in oxidation number of another species. Example:. Announcements I. Homework Set 1.3 Solutions Posted (no problems will be collected). Exam 1. Mar. . . 7. th. Will review topics on Thursday. Will cover all electronics topics and electrochemistry (Ch. 13 most or all of Ch. 14). 1. Lecture 1. 2. Basic Concepts. 3. Oxidation - Reduction Reactions . (. Redox. . rxns. ) involve the transfer of electrons from one species of the reactants to another. This results in an increase in oxidation number (O.N.) of a specific species and a complementary decrease in oxidation number of another species. Example:. Selective Breeding o r Artificial Selection What is Selective Breeding? Selective breeding is the process of breeding plants and animals for particular traits. The term selective breeding is synonymous with artificial selection Hamilton SUS pH electrodes. Quality Declaration :. All sensors delivered with Quality Declaration. The Quality Declaration contains all information needed for start-up. Hamilton SUS pH electrodes. Quality Declaration . POTENTIOMETRIC ELECTRODES AND POTENTIOMETRY. Ch.13. In this chapter. Understand the concept of the various types of electrodes that can be used for measuring solution potentials.. How to select the proper one for measuring a given . What is Selective Mutism?. According to the American Speech-Language Hearing Association. Selective . Mutism “is a disorder that usually occurs during childhood. It is when the child does not to speak in at least one social setting. However, the child can speak in other situations. Selective mutism typically occurs before a child is 5 years old and is usually first noticed when the child starts school.”. Selective. . Goals, . Learning Objectives, and Logistics. Boston . University School of Medicine . BUSM Institutional Learning Objectives: . BU CARES. B. ehaves in a caring, compassionate and sensitive manner toward patients and colleagues of all cultures and backgrounds. (Patient Care and Professionalism). Good progress:. Identify why humans selectively breed plants and animals.. Describe the process of selective breeding and give examples.. Outstanding progress:. Explain the benefits and risks of selective breeding in plants and animals.. AND . ION SELECTIVE ELECTRODE. GROUP . 2 . Onokpe. Frances . OgheneFejiro. -Presenter. 15/Mhs06/051. Dandutse. . T. ijjani. . H. ajara. 15/MHS06/023. Ogunyemi. . T. osin. 15/MHS06/043. . cells. . are. . the. . cells. . which. . are. . subject. . to. . redox. . reactions. . . There. is a . need. . to. . electron. transfer . to. . redox. . reaction. . to. form . potential. ONS Business Surveys. Daniel Lewis. Overview. Introduction. Selective editing in ONS. The need to review selective editing. Threshold review. Process for maintaining selective editing. Next steps. Introduction. Assistant Professor,. ECE . Deptt.,UIET,CSJM. University. Introduction. In observing the measurement of ECG or the some other form of bioelectric potential, a conclusion could easily be reached that the measurement electrodes are simply electrical terminals or contact points from which the voltage can be obtained at the surface of the body..