Determination for micro amounts of nucleic acids by a resonance light scattering technique with dequalinium chloride.
Talanta
; 55(4): 669-75, 2001 Oct 31.
Article
em En
| MEDLINE
| ID: mdl-18968413
ABSTRACT
Based on the strong enhancement effect of nucleic acids on resonance light scattering of dequalinium chloride, the determination method for micro amounts of nucleic acids has been developed. Under the experimental conditions (5.0x10(-5) mol l(-1) dequalinium, pH 7.0, at room temperature) the linear range of this assay is 0.04-10.0 mug ml(-1) for calf thymus DNA and fish sperm DNA, and 0.04-35.0 mug ml(-1) for yeast RNA. The detection limits (3sigma) are 6.2 ng ml(-1) for calf thymus DNA, 7.4 ng ml(-1) for fish sperm DNA, and 7.0 ng ml(-1) for yeast RNA, respectively. Almost no interference can be observed from ionic strength, proteins, nucleoside, and most of the metal ions. Six synthetic samples were determined satisfactorily.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2001
Tipo de documento:
Article