title: [Studies on the interaction between RNA with neutral red and determination of RNA by spectrophotometry].
abstract: An analytical method for the determination of ribonucleic acid by spectrophotometry was established. At the maximum absorption wavelength for neutral red in B-R buffer solution, and under the best conditions, the decrease in the absorbance was linear with the amount of ribonucleic acid. The linearity range was 0.0-9.0 microg x mL(-1), the detection limit was 0.52 microg x mL(-1), and the correlation coeffient was 0.999 8. This method was simple, rapid, and selective. So its application to the determination of ribonucleic acid was satisfactory. The reaction mechanism was that the electrostatic interaction leads to molecular association of RNA with neutral red, resulting in anti-ion permutation and bonding reaction.
authors.affiliation: Suzhou Agriculture College, Suzhou 215008, China. swh@mail.szai.com
authors.forename: Wen-Hui
authors.initials: WH
authors.lastname: Si
mesh_terms: D001665:Binding Sites; D006863:Hydrogen-Ion Concentration; D009499:Neutral Red / Q000737:chemistry*; D012313:RNA / Q000032:analysis / Q000737:chemistry* / Q000592:standards; D012331:RNA, Fungal / Q000032:analysis / Q000737:chemistry; D012015:Reference Standards; D015203:Reproducibility of Results; D013053:Spectrophotometry; D013056:Spectrophotometry, Ultraviolet; D015003:Yeasts / Q000235:genetics
chemical_list: D012331:RNA, Fungal; D009499:Neutral Red; D012313:RNA