polarography

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polarography

 [po″lar-og´rah-fe]
an electrochemical technique for identifying and estimating the concentration of reducible elements in an electrochemical cell by means of the dual measurement of the current flowing through the cell and the electrical potential at which each element is reduced. adj., adj polarograph´ic.

po·lar·og·ra·phy

(pō'lăr-og'ră-fē),
That branch of electrochemistry concerned with the variation in current flowing through a solution as the voltage is varied; this will vary with the ionic concentration of reducible substances so that polarography can be used in chemical analysis. Polarography is commonly employed in the form of a reduction at a dropping mercury electrode.
[Mod. L. polaris, polar, + G. graphō, to write]

polarography

/po·lar·og·ra·phy/ (po″lar-og´rah-fe) an electrochemical technique for identifying and estimating the concentration of reducible elements in an electrochemical cell by means of the dual measurement of the current flowing through the cell and the electrical potential at which each element is reduced.polarograph´ic

polarography

an electrochemical technique for identifying and estimating the concentration of reducible elements in an electrochemical cell by means of the dual measurement of the current flowing through the cell and the electrical potential at which each element is reduced.
References in periodicals archive ?
Methyl thymol blue is one of the important sulphothalein dyes generally used as an indicator and a reagent for the spectrophotometric estimation of metals the literature accounts for the Polarographic behaviour of methyl thymol blue.
These meters also have advanced features such as auto-recognizing polarographic or RDO optical dissolved oxygen probes, 2000 data point memory with time and date stamp, RS232 and USB interfaces and selectable settings to meet your needs for readings, response, accuracy and repeatability.
25D steps) Ultraviolet (UV) blocking >96% UVA 100% UV-B Class I UV blocker Inside-out indicator 1-2-3 inversion indicator Visibility tint Yes * Measured via polarographic method, edge and boundary corrected ** Compared to 100% with no lens wear, through lens centre, -3.
2], mm Hg) in the seawater was measured with a polarographic oxygen electrode (Radiometer A/S, Copenhagen, Denmark) mounted in a water-jacketed cuvette (maintained at the experimental temperature) and connected to a digital oxygen meter (Cameron Instruments Company, Port Aransas, TX).
The polarographic reduction of isonicotinic and picolinic acids was also studied (Jellinek, 1954 and Volke et al, 1955).
1919-1986), arrived at the University of New Brunswick in 1948, having received his RNDr at Charles University, Prague, in 1945 for his discovery of polarographic kinetic currents and their application for rate measurements of very fast reactions.
Polarographic determination of poly(acrylic acid), poly(acrylamide) and the corresponding copolymers.
Figures 1 (a) and (b) show pictures of a commercial polarographic unit and electrode assembly.
Mitochondrial respiritory control and the polarographic measurement of ADP:O ratios.
Polarographic oxygen analyzer response: The effect of instrument lag in the non-steady state reaeration test.
All of the U-20 series also incorporates a galvanic membrane in its DO sensor that is not effected by water movement giving it a faster and more stable response time than the polarographic DO Sensors.