Definition of polarography in English:

polarography

noun ˌpəʊləˈrɒɡrəfiˌpoʊləˈrɑɡrəfi

mass nounChemistry

A method of analysis in which a sample is subjected to electrolysis using a special electrode and a range of applied voltages, a plot of current against voltage showing steps corresponding to particular chemical species and proportional to their concentration.
Example sentencesExamples
- The states of the Mn complex reached after increasing periods of heating were investigated by oxygen polarography, EPR spectroscopy, and, in particular, by x-ray absorption spectroscopy.
- In electrochemical analysis by such methods as anodic stripping voltammetry, cyclic voltammetry, differential pulse polarography, and potentiometry, the anode always functions as the site of oxidation.
- He was a physical chemist who won the Nobel Prize in 1959 for his discovery of polarography and its use in analytic chemistry.

Derivatives

polarographic

adjective ˌpəʊlərəˈɡrafɪk

Chemistry

Most popular are the polarographic and the optical spectroscopic methods.
Example sentencesExamples
- The measurement of arterial PO 2 was revolutionized by the introduction of the polarographic oxygen electrode.
- Invasive techniques, such as polarographic oxygen microelectrodes, cannot be used in the lung because of the inaccessibility of the bronchial tree.
- A standard polarographic assay was used to measure oxygen consumption by the isolated mitochondria.
- Oxygen consumption rates were measured, after 1 hr acclimation, in a closed system using a Clark-type polarographic oxygen electrode.

Origin

1930s: from polarization (see polarize) + -graphy.

Definition of polarography in US English:

polarography

nounˌpōləˈräɡrəfēˌpoʊləˈrɑɡrəfi

Chemistry

A method of analysis in which a sample is subjected to electrolysis using a special electrode and a range of applied voltages, a plot of current against voltage showing steps corresponding to particular chemical species and proportional to their concentration.
Example sentencesExamples
- He was a physical chemist who won the Nobel Prize in 1959 for his discovery of polarography and its use in analytic chemistry.
- The states of the Mn complex reached after increasing periods of heating were investigated by oxygen polarography, EPR spectroscopy, and, in particular, by x-ray absorption spectroscopy.
- In electrochemical analysis by such methods as anodic stripping voltammetry, cyclic voltammetry, differential pulse polarography, and potentiometry, the anode always functions as the site of oxidation.

Origin

1930s: from polarization (see polarize) + -graphy.

单词	polarography
释义	Definition of polarography in English: polarography noun ˌpəʊləˈrɒɡrəfiˌpoʊləˈrɑɡrəfi mass nounChemistry A method of analysis in which a sample is subjected to electrolysis using a special electrode and a range of applied voltages, a plot of current against voltage showing steps corresponding to particular chemical species and proportional to their concentration. Example sentencesExamples The states of the Mn complex reached after increasing periods of heating were investigated by oxygen polarography, EPR spectroscopy, and, in particular, by x-ray absorption spectroscopy. In electrochemical analysis by such methods as anodic stripping voltammetry, cyclic voltammetry, differential pulse polarography, and potentiometry, the anode always functions as the site of oxidation. He was a physical chemist who won the Nobel Prize in 1959 for his discovery of polarography and its use in analytic chemistry. Derivatives polarographic adjective ˌpəʊlərəˈɡrafɪk Chemistry Most popular are the polarographic and the optical spectroscopic methods. Example sentencesExamples The measurement of arterial PO 2 was revolutionized by the introduction of the polarographic oxygen electrode. Invasive techniques, such as polarographic oxygen microelectrodes, cannot be used in the lung because of the inaccessibility of the bronchial tree. A standard polarographic assay was used to measure oxygen consumption by the isolated mitochondria. Oxygen consumption rates were measured, after 1 hr acclimation, in a closed system using a Clark-type polarographic oxygen electrode. Origin 1930s: from polarization (see polarize) + -graphy. Definition of polarography in US English: polarography nounˌpōləˈräɡrəfēˌpoʊləˈrɑɡrəfi Chemistry A method of analysis in which a sample is subjected to electrolysis using a special electrode and a range of applied voltages, a plot of current against voltage showing steps corresponding to particular chemical species and proportional to their concentration. Example sentencesExamples He was a physical chemist who won the Nobel Prize in 1959 for his discovery of polarography and its use in analytic chemistry. The states of the Mn complex reached after increasing periods of heating were investigated by oxygen polarography, EPR spectroscopy, and, in particular, by x-ray absorption spectroscopy. In electrochemical analysis by such methods as anodic stripping voltammetry, cyclic voltammetry, differential pulse polarography, and potentiometry, the anode always functions as the site of oxidation. Origin 1930s: from polarization (see polarize) + -graphy.
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