Abstract
The polarographic behaviour of 1-(4-methoxyphenyl)-3-methyltriazene in a mixed aqueous-methanolic medium was investigated by last polarography and differential pulse polarography at a dropping mercury electrode, constant-potential coulometry at a large area mercury electrode and cyclic voltammetry at a hanging mercury drop electrode. A mechanism has been proposed for its polarographic reduction and optimal conditions have been found for its determination by last polarography in the concentration range 2-100 μmol l-1 and by differential pulse polarography at a dropping mercury electrode, differential pulse voltammetry at a hanging mercury drop electrode and linear scan voltammetry at a hanging mercury drop electrode in the concentration range 0.2-100 μmol l-1. The sensitivity of the determination can be further improved through adsorptive accumulation of the test substance on the surface of the hanging mercury drop electrode; fifteen-second accumulation in stirred solution allows determination in the range 0.01-0.1 μmol l-1.
| Original language | English |
|---|---|
| Pages (from-to) | 107-119 |
| Number of pages | 13 |
| Journal | Collection of Czechoslovak Chemical Communications |
| Volume | 61 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 1 Jan 1996 |
| Externally published | Yes |
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Keywords
- 1-(4-Methoxyphenyl)-3-methyltriazine
- Adsorptive stripping voltammetry
- Differential pulse polarography
ASJC Scopus subject areas
- Chemistry(all)
Cite this
Polarographic and voltammetric determination of 1-(4-methoxyphenyl)-3-methyltriazene. / Barek, Jiří; Pertileová, Eva; Mejstřík, Viktor; Moreira, Josino C.; Zima, Jiří.
In: Collection of Czechoslovak Chemical Communications, Vol. 61, No. 1, 01.01.1996, p. 107-119.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Polarographic and voltammetric determination of 1-(4-methoxyphenyl)-3-methyltriazene
AU - Barek, Jiří
AU - Pertileová, Eva
AU - Mejstřík, Viktor
AU - Moreira, Josino C.
AU - Zima, Jiří
PY - 1996/1/1
Y1 - 1996/1/1
N2 - The polarographic behaviour of 1-(4-methoxyphenyl)-3-methyltriazene in a mixed aqueous-methanolic medium was investigated by last polarography and differential pulse polarography at a dropping mercury electrode, constant-potential coulometry at a large area mercury electrode and cyclic voltammetry at a hanging mercury drop electrode. A mechanism has been proposed for its polarographic reduction and optimal conditions have been found for its determination by last polarography in the concentration range 2-100 μmol l-1 and by differential pulse polarography at a dropping mercury electrode, differential pulse voltammetry at a hanging mercury drop electrode and linear scan voltammetry at a hanging mercury drop electrode in the concentration range 0.2-100 μmol l-1. The sensitivity of the determination can be further improved through adsorptive accumulation of the test substance on the surface of the hanging mercury drop electrode; fifteen-second accumulation in stirred solution allows determination in the range 0.01-0.1 μmol l-1.
AB - The polarographic behaviour of 1-(4-methoxyphenyl)-3-methyltriazene in a mixed aqueous-methanolic medium was investigated by last polarography and differential pulse polarography at a dropping mercury electrode, constant-potential coulometry at a large area mercury electrode and cyclic voltammetry at a hanging mercury drop electrode. A mechanism has been proposed for its polarographic reduction and optimal conditions have been found for its determination by last polarography in the concentration range 2-100 μmol l-1 and by differential pulse polarography at a dropping mercury electrode, differential pulse voltammetry at a hanging mercury drop electrode and linear scan voltammetry at a hanging mercury drop electrode in the concentration range 0.2-100 μmol l-1. The sensitivity of the determination can be further improved through adsorptive accumulation of the test substance on the surface of the hanging mercury drop electrode; fifteen-second accumulation in stirred solution allows determination in the range 0.01-0.1 μmol l-1.
KW - 1-(4-Methoxyphenyl)-3-methyltriazine
KW - Adsorptive stripping voltammetry
KW - Differential pulse polarography
UR - http://www.scopus.com/inward/record.url?scp=33747902044&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33747902044&partnerID=8YFLogxK
U2 - 10.1135/cccc19960107
DO - 10.1135/cccc19960107
M3 - Article
AN - SCOPUS:33747902044
VL - 61
SP - 107
EP - 119
JO - Collection of Czechoslovak Chemical Communications
JF - Collection of Czechoslovak Chemical Communications
SN - 0010-0765
IS - 1
ER -