Abstract
Here we present a highly sensitive, rapid and simple electrochemical assay of RNase based on coupling magnetic separation of the enzymatically treated RNA with stripping potentiometric detection of the purine nucleobases. A detection limit of 1 × 10-8 U RNase (ca. 4 pg/mL) is obtained in connection to a 60 min enzymatic digestion. The attractive performance of this direct indicator-free electrochemical assay offers great promise for a wide range of molecular biology and water quality applications.
Original language | English (US) |
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Pages (from-to) | 919-922 |
Number of pages | 4 |
Journal | Electroanalysis |
Volume | 20 |
Issue number | 8 |
DOIs | |
State | Published - Apr 2008 |
Keywords
- Electrochemistry
- Guanine
- Ribonuclease
ASJC Scopus subject areas
- Analytical Chemistry
- Electrochemistry