The determination of thiols with diphenylpicrylhydrazyl as a spectrophotometric reagent
Diphenylpicrylhydrazyl (DPPH), a stable, intensely purple free radical, is used as a reagent in the quantitative determination of various aromatic and aliphatic thiols by indirect spectrophotometric analysis. Plots of degree of reaction vs. time show that thiophenol and its derivatives react more qu...
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| Veröffentlicht in: | Talanta (Oxford) 1983-07, Vol.30 (7), p.475-480 |
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| container_title | Talanta (Oxford) |
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| creator | Hunsaker, Donald B. Schenk, George H. |
| description | Diphenylpicrylhydrazyl (DPPH), a stable, intensely purple free radical, is used as a reagent in the quantitative determination of various aromatic and aliphatic thiols by indirect spectrophotometric analysis. Plots of degree of reaction
vs. time show that thiophenol and its derivatives react more quickly than aliphatic thiols with DPPH. Calibration plots are linear over the concentration range 0.05–3.00 × 10
−5
M thiol. The average relative error is in the range 1–2% and the absolute standard deviations range up to 0.50 × 10
−6
M. |
| doi_str_mv | 10.1016/0039-9140(83)80113-1 |
| format | Article |
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vs. time show that thiophenol and its derivatives react more quickly than aliphatic thiols with DPPH. Calibration plots are linear over the concentration range 0.05–3.00 × 10
−5
M thiol. The average relative error is in the range 1–2% and the absolute standard deviations range up to 0.50 × 10
−6
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vs. time show that thiophenol and its derivatives react more quickly than aliphatic thiols with DPPH. Calibration plots are linear over the concentration range 0.05–3.00 × 10
−5
M thiol. The average relative error is in the range 1–2% and the absolute standard deviations range up to 0.50 × 10
−6
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vs. time show that thiophenol and its derivatives react more quickly than aliphatic thiols with DPPH. Calibration plots are linear over the concentration range 0.05–3.00 × 10
−5
M thiol. The average relative error is in the range 1–2% and the absolute standard deviations range up to 0.50 × 10
−6
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| fulltext | fulltext |
| identifier | ISSN: 0039-9140 |
| ispartof | Talanta (Oxford), 1983-07, Vol.30 (7), p.475-480 |
| issn | 0039-9140 1873-3573 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_733826247 |
| source | Elsevier ScienceDirect Journals |
| title | The determination of thiols with diphenylpicrylhydrazyl as a spectrophotometric reagent |
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