Glass carbon electrode Imported glass carbon electrode 12mm glass carbon electrode Imported glass carbon teflon rod
Suggested Remarks: Try to avoid ultrasonic cleaning for glass carbon electrode. If the data is not correct, it can be repaired by polishing and grinding.
Product Description.
Product name: glass carbon electrode
Product features: mirror polished electrode, electrode can provide customized (tetrafluoro length are 80mm can be extended to customize)
Product size: 1) glass carbon core diameter 2mm, tetrafluoro outside diameter 6mm; copper column length 15mm, diameter 2mm
2）Glass carbon core diameter 3mm, teflon outer diameter 6mm; copper column length 15mm, diameter 2mm
(3) glass carbon core diameter 4mm, teflon outer diameter 8mm; copper column length 15mm, diameter 2mm
4）Glass carbon core diameter 5mm, teflon outer diameter 8mm; copper column length 15mm, diameter 2mm
5）Glass carbon inner core diameter 6mm, teflon outer diameter 10mm; copper column length 15mm, diameter 2mm
Glassy carbon electrode is one of the widely used working electrodes, it is a better inert electrode with good electrical conductivity, high hardness, high finish, high hydrogen over point position, wide polarization range and stable chemical properties, it can be used directly as inert electrode for anode dissolution, cathode and voltammetric determination of variable ions, and also can be used as chemical modification electrode. Glassy carbon electrode
3mm glassy carbon electrode, total length about 95mm, tetrafluoro outer tube diameter about 6mm, wiring post 15mm, tetrafluoro length 80mm
The peak potential difference of the electrode for measuring potassium ferricyanide is below 100mv, which is within the normal range.
glassy carbon electrode
Glassy carbon is a glassy carbon electrode, which is made by slowly heating polyacrylonitrile resin or phenolic resin in an inert atmosphere to a high temperature (up to 1800℃) to form an amorphous carbon with a glassy outer shape, and is suitable as an electronic conductor material for electrodes.
Glass carbon electrode is the abbreviation of glass carbon electrode.
The advantages of glassy carbon electrode are good conductivity, high chemical stability, small coefficient of thermal expansion, hard texture, good gas tightness, wide potential range (about from -1 to 1V, relative to the saturated glycogen electrode), can be made into cylindrical, disc and other electrode shapes, with it as a substrate can also be made into mercury film glassy carbon electrode and chemically modified electrodes. It is increasingly widely used in electrochemical experiments or electroanalytical chemistry.
Glassy carbon is a glassy carbon electrode, which is made by slowly heating polyacrylonitrile resin or phenolic resin in an inert atmosphere to a high temperature (up to 1800℃) to form an amorphous carbon with a glassy outer shape, and is suitable as an electronic conductor material for electrodes.
Glass carbon electrode is the abbreviation of glass carbon electrode.
The advantages of glassy carbon electrode are good conductivity, high chemical stability, small coefficient of thermal expansion, hard texture, good gas tightness, wide potential range (about from -1 to 1V, relative to the saturated glycogen electrode), can be made into cylindrical, disc and other electrode shapes, with it as a substrate can also be made into mercury film glassy carbon electrode and chemically modified electrodes. It is increasingly widely used in electrochemical experiments or electroanalytical chemistry.
Electrode characteristics:
Glassy carbon electrode is one of the widely used working electrodes, it is a better inert electrode with good conductivity, high hardness, high finish, high hydrogen overpotential, wide polarization range and chemical stability, it can be used directly as inert electrode for anode dissolution, cathode and voltammetry of variable ions, and also as chemical modification electrode.
Glassy carbon electrode is one of the widely used working electrodes, it is a better inert electrode with good conductivity, high hardness, high finish, high hydrogen overpotential, wide polarization range and chemical stability, it can be used directly as inert electrode for anode dissolution, cathode and voltammetry of variable ions, and also as chemical modification electrode.
Electrode treatment and maintenance:
It must be ensured that the surface of glassy carbon is mirror-like and clean. As the surface of glassy carbon is easily contaminated by some organic metal compounds, which seriously affects the measurement (no peak, miscellaneous peaks, non-reproducible), so the measurement must be cleaned before treatment, there are three main methods, chemical method 1. nitric acid soaking and scrubbing. 2.
Ammonia anhydrous ethanol or ethanol acetate 1:1 soak and scrub. 3. Alcohol can also be used after scrubbing and then soaked in 6NHCL or 4NHO3. Electrochemical treatment: that is, in +0.8V-(-1.8V (0.5MKcLPH7 in addition to O2I conditions) voltage range repeatedly polarized times (reset - scan) (anode - cathode to cathode at) If serious pollution and pockmarks, scratches can be mechanical treatment, MgO powder (more than 200 mesh) on a wet flannel, add a small amount of water polishing. Also can
According to the electrode situation, several methods can be used together. It is not suitable to immerse the electrode in strong acid and alkali and organic solvent for a long time.
Because the glass carbon electrode is inert electrode, so in the use of plating scanning material is scanning electrode, such as plating mercury, copper, gold is mercury film, copper film, gold film electrode. For example: anode dissolved mercury plating and gold plating, there are two kinds of glass carbon mercury plating: the first one is homogeneous mercury plating, that is, adding a certain amount of Hg+ (generally with mercury oxide and mercury nitrate) in the analyzed sample under the point of electrolytic enrichment to be ionized, while forming amalgam, after scanning dissolution, at a more positive potential, completely dissolve the ion to be measured or mercury film, you can also remove the electrode with filter paper to wipe the mercury film. To ensure the second analysis of the electrode surface is still the original state to ensure reproducibility, the general concentration of mercury ions is 500-1000 times the concentration of the ions to be measured, the second for the plating of mercury film, 1. If cu can be measured at -0.2V for a long time electroplating mercury film, and prevent the danger of electroplating cu,pb,cd,zn, this method is inefficient, long time. 2. under the condition of isotope plating mercury, electroplating production for a period of time, scanning dissolution, in the termination potential and then dissolve the general time, dissolve the ions to be measured, so enrichment - dissolution, repeated several times to get a layer of mercury film does not contain the ions to be measured.
Such as 0.5MKCL + 2×10-2MHg + a dozen drops of saturated NaSO3, stirring at -1.4V for 5-10 minutes to enrich, stirring state with 15 seconds to scan to -0.1V, continue to stir at -0.1V to dissolve for 30 seconds, then stir at reset state to enrich for 5-10 minutes, 15 seconds to stir to scan to -0.1V, then stir at -0.1V to dissolve for 30 seconds Remove the electrode after the solution is still, and rinse the electrode stub with water to prevent the plating layer from breaking. When plating mercury should pay attention to the bottom of the electrode can not be bubble absorption, otherwise the mercury layer is not uniform and plating on, short-term use can be soaked in 1:1 nitric acid electrode, when used to wash and plating, long-term use should be cleaned and dry mercury preservation. The basic principle of glass carbon gold plating is the same as mercury plating.
It must be ensured that the surface of glassy carbon is mirror-like and clean. As the surface of glassy carbon is easily contaminated by some organic metal compounds, which seriously affects the measurement (no peak, miscellaneous peaks, non-reproducible), so the measurement must be cleaned before treatment, there are three main methods, chemical method 1. nitric acid soaking and scrubbing. 2.
Ammonia anhydrous ethanol or ethanol acetate 1:1 soak and scrub. 3. Alcohol can also be used after scrubbing and then soaked in 6NHCL or 4NHO3. Electrochemical treatment: that is, in +0.8V-(-1.8V (0.5MKcLPH7 in addition to O2I conditions) voltage range repeatedly polarized times (reset - scan) (anode - cathode to cathode at) If serious pollution and pockmarks, scratches can be mechanical treatment, MgO powder (more than 200 mesh) on a wet flannel, add a small amount of water polishing. Also can
According to the electrode situation, several methods can be used together. It is not suitable to immerse the electrode in strong acid and alkali and organic solvent for a long time.
Because the glass carbon electrode is inert electrode, so in the use of plating scanning material is scanning electrode, such as plating mercury, copper, gold is mercury film, copper film, gold film electrode. For example: anode dissolved mercury plating and gold plating, there are two kinds of glass carbon mercury plating: the first one is homogeneous mercury plating, that is, adding a certain amount of Hg+ (generally with mercury oxide and mercury nitrate) in the analyzed sample under the point of electrolytic enrichment to be ionized, while forming amalgam, after scanning dissolution, at a more positive potential, completely dissolve the ion to be measured or mercury film, you can also remove the electrode with filter paper to wipe the mercury film. To ensure the second analysis of the electrode surface is still the original state to ensure reproducibility, the general concentration of mercury ions is 500-1000 times the concentration of the ions to be measured, the second for the plating of mercury film, 1. If cu can be measured at -0.2V for a long time electroplating mercury film, and prevent the danger of electroplating cu,pb,cd,zn, this method is inefficient, long time. 2. under the condition of isotope plating mercury, electroplating production for a period of time, scanning dissolution, in the termination potential and then dissolve the general time, dissolve the ions to be measured, so enrichment - dissolution, repeated several times to get a layer of mercury film does not contain the ions to be measured.
Such as 0.5MKCL + 2×10-2MHg + a dozen drops of saturated NaSO3, stirring at -1.4V for 5-10 minutes to enrich, stirring state with 15 seconds to scan to -0.1V, continue to stir at -0.1V to dissolve for 30 seconds, then stir at reset state to enrich for 5-10 minutes, 15 seconds to stir to scan to -0.1V, then stir at -0.1V to dissolve for 30 seconds Remove the electrode after the solution is still, and rinse the electrode stub with water to prevent the plating layer from breaking. When plating mercury should pay attention to the bottom of the electrode can not be bubble absorption, otherwise the mercury layer is not uniform and plating on, short-term use can be soaked in 1:1 nitric acid electrode, when used to wash and plating, long-term use should be cleaned and dry mercury preservation. The basic principle of glass carbon gold plating is the same as mercury plating.
package:1PC
warranty: 120 days
On May 29, 2023 at 00:06:38 PDT, seller added the following information: