CE ÎNSEAMNĂ POLAROGRAPHY ÎN ENGLEZĂ?
polarografia
Polarografia este o subclasă de voltammetrie în care electrodul de lucru este un electrod de mercur scăzut sau un electrod static de mercur, care este util pentru gamele catodice largi și suprafețele regenerabile. A fost inventat de Jaroslav Heyrovský, pentru care a câștigat premiul Nobel în 1959.
Definiția polarography în dicționarul Engleză
Definiția polarografiei în dicționar este o tehnică pentru analizarea și studiul ionilor în soluție prin utilizarea unei celule electrolitice cu un catod foarte mic și obținerea unui grafic al curentului în raport cu potențialul de a determina concentrația și natura ionilor. Deoarece catodul este mic, are loc polarizarea și fiecare tip de anion este evacuat la un potențial diferit. Aparatul folosește în mod obișnuit un catod cu picurare-mercur.
CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «POLAROGRAPHY»
Descoperă întrebuințarea
polarography în următoarea selecție bibliografică. Cărți în legătură cu
polarography și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Introduction to
Polarography and Allied Techniques
1.1 INTRODUCTION AND BASIC PRINCIPLES Polarography is the branch of
voltammetry in which a dropping mercury electrode is used as the indicator
electrode. It is the electroanalytical technique that deals with the effect of the
potential of ...
2
Modern Methods of Pharmaceutical Analysis, Second Edition
RELATED POLAROGRAPHIC AND VOLTAMMETRIC TECHNIQUES Although
DME polarography is the oldest polarographic technique, it is not always the
technique of choice. Some of the limitations previously mentioned include
complex ...
3
Electroanalysis: Theory and Applications in Aqueous and ...
TABLE 3.1 NEWER METHODS (NON-CONVENTIONAL) OF POLAROGRAPHY (
MOSTLY WITH A CONTROLLED DROP TIME) I. Controlled-potential techniques
ll. Controlled-current techniques' Advanced DC polarography AC polarography ...
4
Basic Concepts Of Analytical Chemistry
Polarography is exclusively carried out with a DME. The voltage ramp is linear if
the drop time is suitably controlled. The range of a DME is 0 -2V against a SCE.
Over potential is caused by the electrochemical reaction. Anodic currents are ...
5
Modern Polarographic Methods in Analytical Chemistry
chose attributed to polarography in analytical laboratories which still retained
ideas formulated from the use of conventional dc polarography. The relative
decline in the routine use of polarography, compared with the upsurge in interest
of ...
6
Instrumentation Reference Book
Polarography is an electrochemical technique; a specific polarographic sensor
for the on-stream determination of oxygen in gas streams is described in Chapter
25. However, there are also many laboratory polarographic instruments; these ...
7
Introduction to Voltammetric Analysis: Theory and Practice
1 Diffusion currents 1.4.2 Kinetic and catalytic currents 10 1.4.3 Capacitive
currents 1.4.4 Adsorption currents References 2 Techniques 18 2.1 Direct current
polarography 18 2.1.1 The diffusion current 19 2.1.2 Reversible processes: the ...
Francis Thomas, Gunter Henze,
2001
8
Instrumental Methods in Metal Ion Speciation
11.1.1 POLAROGRAPHY Polarography was developed by J. Heyrovsky in 1 922,
and the current versus voltage curves are called polarograms. One oxidation
state is electrochemically active, while the other is inactive under the applied ...
Imran Ali, Hassan Y. Aboul-Enein,
2006
9
The Chemical Analysis of Water: General Principles and ...
200 mV is required for adequate resolution, but the use of such variants as
differential pulse polarography permits reactions having even closer E\ values to
be resolved satisfactorily. Additionally, some control of the problem may also be ...
D. T. E. Hunt, Anthony Leslie Wilson,
1986
10
A Guide to Materials Characterization and Chemical Analysis
Polarography and voltammetry are electrochemical techniques that provide
quantitative and qualitative information about redox active (capable of oxidation
or reductionl components. In certain cases the technique can be extremely
sensitive ...
ȘTIRI NOI CARE INCLUD TERMENUL «POLAROGRAPHY»
Află ce ziare naționale și internaționale au scris despre și cum este întrebuințat termenul
polarography în contextul următoarelor știri.
Scientists Find New Method to Determine Anti-Depression Drug in …
Therefore, the application of this method is much easier and results in less pollution than polarography method that uses enormous amount of ... «Nanotechnology News, Apr 15»
Understanding the Different Methods to Electrochemical Analysis
The various combinations of working electrodes and parameters make for a long list of techniques, including polarography, voltammetry, cyclic ... «Azom.com, Feb 14»
Food safety test for harmful dye
'Currently, the determination of Orange II uses techniques such as chromatography-mass spectrometry and polarography,' says Tian Gan at ... «Chemistry World, Apr 13»
Clarkson University Professor Emeritus Petr Zuman Recalls Nobel …
The special issue commemorates the 90th anniversary of the invention of the technique of polarography, which is an electrochemical technique ... «Clarkson University News, Sep 12»
Multi-Mode Electrode pro – the Proven Electrode for Polarography …
Ever since it was first introduced, the Multi-Mode Electrode (MME) has been the most reliable electrode for polarography. Now its successor ... «Labmate Online, Iun 12»
The National Museum presents Czech inventors and inventions
... famous Czech inventor professor Jaroslav Heyrovsky who won the Nobel Prize for inventing the polarograph and polarography in general.”. «Radio Prague, Nov 11»
Tsarigradsko Chaussee to become Sofia's main business centre by …
Next week, the European Trade Centre is due to open, which will be followed by Megapark and the Polarography Business Centre by the end ... «Sofia Echo, Apr 10»