JoVE Logo

Войдите в систему

Chapter 10

Electrochemical Analyses and Redox Titration

Электрохимия: Обзор
Электрохимия: Обзор
Electrochemistry is the branch of chemistry that studies the relationship between electrical quantities and chemical reactions, particularly oxidation and ...
14549_Обзор_электродов
14549_Обзор_электродов
 Electrochemical measurements are conducted in an electrochemical cell composed of various components that control and measure the current and ...
Методы межфазной электрохимии
Методы межфазной электрохимии
Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that ...
Потенциометрия: Обзор
Потенциометрия: Обзор
Potentiometry is an analytical technique that measures the potential difference between two electrodes in an electrochemical cell without drawing any ...
Потенциометрия_Типы электродов
Потенциометрия_Типы электродов
Reference electrodes serve as a stable reference point for potentiometric measurements, while indicator and working electrodes react to variations in the ...
Потенциометрия: мембранные электроды
Потенциометрия: мембранные электроды
Membrane electrodes, also known as p-ion electrodes, use membranes that selectively interact with free analyte ions, generating a potential difference ...
Редокс-титрование: обзор
Редокс-титрование: обзор
Redox titration is a chemical analysis technique used to determine the concentration of an unknown substance by measuring the electron transfer in a redox ...
Редокс-титрование: йодометрия и йодиметрия
Редокс-титрование: йодометрия и йодиметрия
Iodometry and iodimetry are analytical methods used to determine the concentration of oxidizing or reducing agents using iodine. In iodometric titrations, ...
Редокс-титрование: другие окислители и восстановители
Редокс-титрование: другие окислители и восстановители
Besides iodine, other oxidizing or reducing agents can serve as titrants in redox titrations. Common oxidizing titrants include KMnO4, cerium(IV), and ...
Потенциометрическое титрование: обзор
Потенциометрическое титрование: обзор
Potentiometric titration is a quantitative analytical technique that determines the concentration of an analyte by measuring the potential difference ...
Прогнозирование конечной точки: график Грана
Прогнозирование конечной точки: график Грана
A Gran plot is used to predict the equivalence volume or endpoint of a potentiometric or acid-base titration without reaching the endpoint. Typically, ...
Электрогравиметрический анализ: обзор
Электрогравиметрический анализ: обзор
Electrogravimetric analysis measures the weight of an analyte deposited electrolytically onto a suitable working electrode. This method involves applying ...
Кулонометрия: Обзор
Кулонометрия: Обзор
Coulometry is one of the rapid, most accurate, and precise analytical techniques that determine the quantity of an analyte by measuring the electrical ...
Кулонометрия с контролируемым потенциалом: электролитический метод
Кулонометрия с контролируемым потенциалом: электролитический метод
Controlled-potential coulometry, also known as potentiostatic coulometry, employs a three-electrode system in which the working electrode's potential ...
Кулонометрия с контролируемым током: обзор
Кулонометрия с контролируемым током: обзор
Controlled current coulometry, also known as amperostatic coulometry, is a technique used in electrochemical analysis to measure the quantity of a ...
Управляемая токовая кулонометрия_Кулонометрическое титрование
Управляемая токовая кулонометрия_Кулонометрическое титрование
Coulometric titrations are a form of titrimetric analysis where the reagent is generated electrically, and its amount is evaluated based on current and ...
Вольтамперометрия: обзор
Вольтамперометрия: обзор
Voltammetry is an electroanalytical technique in which the current flowing through an electrochemical cell is measured as a function of applied potential, ...
Вольтамперометрия: факторы, влияющие на измерения
Вольтамперометрия: факторы, влияющие на измерения
A current produced due to the redox reactions of the analyte at the working and auxiliary electrodes is called a faradaic current. The reaction can be ...
Вольтамперограммы: обзор
Вольтамперограммы: обзор
Voltammograms are current plots as a function of applied potential, offering insights into electrochemical systems. The shape of a voltammogram depends on ...
Методы вольтамперометрии: линейное сканирование (E против времени)
Методы вольтамперометрии: линейное сканирование (E против времени)
Polarography is a classical voltammetric technique used to analyze electrochemical reactions. This method applies a linear potential sweep to a dropping ...
Методы вольтамперометрии: импульсная вольтамперометрия
Методы вольтамперометрии: импульсная вольтамперометрия
Differential-pulse voltammetry (DPV) is a type of voltammetry that involves applying a series of voltage pulses to an electrochemical cell while measuring ...
Методы вольтамперометрии: циклическая вольтамперометрия
Методы вольтамперометрии: циклическая вольтамперометрия
Cyclic voltammetry (CV) is an electrochemical technique used to investigate the redox properties of a chemical species. It involves measuring the current ...
Вольтамперометрия: методы десорбции
Вольтамперометрия: методы десорбции
Anodic Stripping Voltammetry (ASV), Cathodic Stripping Voltammetry (CSV), and Adsorptive Stripping Voltammetry (AdSV) are electrochemical techniques used ...
Амперометрия: обзор
Амперометрия: обзор
Amperometry is a technique commonly used to measure the concentration of specific analytes in a solution by monitoring the electric current generated ...
JoVE Logo

Исследования

Образование

О JoVE

Авторские права © 2025 MyJoVE Corporation. Все права защищены