Sensitive spectrophotometric determination of tetraphenylboron and tetraphenylarsonium with ethidium bromide
โ Scribed by Tomihiko Higuti; Motoyo Ohnishi; Naokatu Arakaki; Setuko Nakasima; Makoto Yokota
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 244 KB
- Volume
- 92
- Category
- Article
- ISSN
- 0003-2697
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โฆ Synopsis
Tetraphenylboron and tetrdphenytarsonium ions have been determined spectrophotometritally by measuring the red shift i n the absorbance maximum of ethidium on its reaction with tetraphenylboron at neutral pH. The present method permits the determination of nanomole quantities of these ions.
๐ SIMILAR VOLUMES
The thermodynamical parameters (free energy, enthalpy, and entropy) of complex formation between ethidium bromide and single-stranded and double-stranded tetranucleotides of different base sequence [5-d(TpGpCpA), 5-d(ApCpGpT), and 5-d(ApGpCpT)] have been determined from the temperature dependencies