Home  About us  Contact
 

Chemiluminescent Reaction (chemiluminescent + reaction)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

Chemiluminescent Reactions Induced by Gold Nanoparticles.

CHEMINFORM, Issue 23 2005
Hua Cui
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Flow-injection,chemiluminescence method for the determination of penicillin G potassium

LUMINESCENCE: THE JOURNAL OF BIOLOGICAL AND CHEMICAL LUMINESCENCE, Issue 4-5 2005
Wei Cao
Abstract The degradation product of penicillin G potassium can react with potassium permanganate in acidic medium and produce chemiluminescence, which is greatly enhanced by formaldehyde. The optimum conditions for this chemiluminescent reaction were studied in detail using a flow-injection system. The experiments indicated that under optimum conditions, the chemiluminescence intensity was linearly related to the concentration of penicillin G potassium within the range 1.0 × 10,7,1.0 × 10,5 g/mL, with a detection limit (3,) of 7 × 10,8 g/mL. The relative standard deviation was 1.0% for 4.0 × 10,7 g/mL penicillin G potassium solution (n = 11). This method has the advantages of simple operation, fast response and high sensitivity. The method was successfully applied to the analysis of penicillin G potassium in raw medicines. Copyright © 2005 John Wiley & Sons, Ltd. [source]

Flow injection,chemiluminescence determination of amoxycillin using potassium permanganate and formaldehyde system

LUMINESCENCE: THE JOURNAL OF BIOLOGICAL AND CHEMICAL LUMINESCENCE, Issue 1 2005
Wei Cao
Abstract It was found that amoxycillin can react with potassium permanganate in an acidic medium to produce chemiluminescence, which is greatly enhanced by formaldehyde. The optimum conditions for this chemiluminescent reaction were studied in detail using a flow-injection system. The experimental results indicate that, under optimum conditions, the chemiluminescence intensity is linearly related to the concentration of amoxycillin in the range 5.48 × 10,8,2.74 × 10,6 mol[sol ]L, with a detection limit (3,) of 4.1 × 10,8 mol[sol ]L. The relative standard deviation was 1.0% at 1.1 × 10,6 mol[sol ]L amoxycillin (n = 11 measurements). This method has the advantages of high sensitivity, fast response and ease of operation. The method was successfully applied to the determination of amoxycillin in raw medicines and capsules. Copyright © 2005 John Wiley & Sons, Ltd. [source]

Detection of Texas red-labelled double-stranded DNA by non-enzymatic peroxyoxalate chemiluminescence

LUMINESCENCE: THE JOURNAL OF BIOLOGICAL AND CHEMICAL LUMINESCENCE, Issue 3 2001
F. Javier Alba
Abstract We have found previously that different fluorescent dyes cannot be efficiently excited by the bis(2,4,6-trichlorophenyl)oxalate (TCPO),H2O2 reaction when they are intercalated between the DNA bases or bound to the minor groove of the double helix. Here we show that the fluorescent dye Texas red, covalently bound to the 3, ends of double-stranded DNA molecules, exhibits a high emission intensity when excited by the TCPO,H2O2 reaction. In this case, the charge transfer between the intermediate produced in the peroxyoxalate chemiluminescent reaction and Texas red can take place because this fluorophore is not buried inside the DNA structure. We describe the application of this chemiluminescent reaction to the detection of blotted DNA on nylon membranes. Copyright © 2001 John Wiley & Sons, Ltd. [source]

Chemiluminescence inhibition assay for folic acid using flow injection analysis

PHYTOCHEMICAL ANALYSIS, Issue 4 2003
Zhenghua Song
Abstract A new flow injection method for the determination of folic acid is described. A fast oxidation reaction occurred when folic acid was mixed with potassium ferricyanide generating ferrocyanide which then inhibited the chemiluminescent reaction of ferricyanide and luminol in alkaline medium. The decrease of chemiluminescence intensity was correlated with the folic acid concentration in the range 0.1,21,µg/mL; the detection limit for the assay was 0.03,µg/mL (3,). A complete analysis of folic acid, including sampling and washing, could be performed within 2,min with a relative standard deviation of less than 4.0%. The proposed method has been applied successfully to the determination of folic acid in pharmaceutical preparations Copyright © 2003 John Wiley & Sons, Ltd. [source]