Voltammetric behavior of cysteine and metallothionein on cobalt (II) tetrasulfonated phthalocyanine modified glassy carbon electrodes
- Limson, Janice L, Nyokong, Tebello
- Authors: Limson, Janice L , Nyokong, Tebello
- Date: 1997
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/293346 , vital:57077 , xlink:href="https://doi.org/10.1002/elan.1140090314"
- Description: Cysteine, and rat Cd, Zn-metallothionein (Cd, Zn-MT) have been studied electrochemically at glassy carbon electrodes modified with cobalt(II) tetrasulfonated phthalocyanine, [CoIITSPc]4−, where Pc(2-) = phthalocyanine dianion. The electrode was modified by electrodeposition of [CoIITSPc]4−. The anodic currents for the oxidation of cysteine on these electrodes are observed at 0.82 V (vs. Ag/AgCl) in acidic media. The anodic currents for the oxidation of Cd, Zn-MT are observed at 0.90 V at pH 8.4 (Tris buffer).
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- Authors: Limson, Janice L , Nyokong, Tebello
- Date: 1997
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/293346 , vital:57077 , xlink:href="https://doi.org/10.1002/elan.1140090314"
- Description: Cysteine, and rat Cd, Zn-metallothionein (Cd, Zn-MT) have been studied electrochemically at glassy carbon electrodes modified with cobalt(II) tetrasulfonated phthalocyanine, [CoIITSPc]4−, where Pc(2-) = phthalocyanine dianion. The electrode was modified by electrodeposition of [CoIITSPc]4−. The anodic currents for the oxidation of cysteine on these electrodes are observed at 0.82 V (vs. Ag/AgCl) in acidic media. The anodic currents for the oxidation of Cd, Zn-MT are observed at 0.90 V at pH 8.4 (Tris buffer).
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WCED causes crisis in education
- SADTU
- Authors: SADTU
- Date: 1997
- Subjects: SADTU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/162052 , vital:40752
- Description: On 15 December 1997 the WCED tabled a proposal in the ELRC. This would effectively terminate the contracts of 3333 temporary educators who were filling vacant substantive posts that were created after 1 July 1996 as a result of the rationalisation process. Not only will temporary educators be dismissed, but the posts that they occupy will be frozen. This means that the teachers who remain behind at schools will have increased workloads and will have to manage bigger class sizes
- Full Text:
- Authors: SADTU
- Date: 1997
- Subjects: SADTU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/162052 , vital:40752
- Description: On 15 December 1997 the WCED tabled a proposal in the ELRC. This would effectively terminate the contracts of 3333 temporary educators who were filling vacant substantive posts that were created after 1 July 1996 as a result of the rationalisation process. Not only will temporary educators be dismissed, but the posts that they occupy will be frozen. This means that the teachers who remain behind at schools will have increased workloads and will have to manage bigger class sizes
- Full Text: