Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-12-7
pubmed:abstractText
Based on the enhancement of the resonance light scattering (RLS) of Congo Red (CR) by nucleic acid, a new quantitative method for nucleic acid is developed. In the Tris-HCl buffer (pH 10.5), the weak light scattering of CR is greatly enhanced by addition of nucleic acid and CTMAB, the maximum peak is at 560 nm and the enhanced intensity of RLS is in proportion to the concentration of nucleic acid. The linear range is 1.0 x 10(-9) to 1.0 x 10(-6) g ml(-1), 7.5 x 10(-8) to 1.0 x 10(-6) g ml(-1) and 7.5 x 10(-8) to 2.5 x 10(-6) g ml(-1) for herring sperm DNA, calf thymus DNA and yeast RNA, and the detection limits are 0.019, 0.89 and 1.2 ng ml(-1) (S/N = 3), respectively. Actual biological samples were satisfactorily determined.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1386-1425
pubmed:author
pubmed:issnType
Print
pubmed:day
14
pubmed:volume
61
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
361-6
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2005
pubmed:articleTitle
Determination of nucleic acids at nanogram level using resonance light scattering technique with Congo Red.
pubmed:affiliation
Key Laboratory for Colloid and Interface Chemistry of Education Ministry, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, Shandong, PR China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't