PMID- 15300351
OWN - NLM
STAT- MEDLINE
DCOM- 20051207
LR  - 20160512
IS  - 1618-2642 (Print)
IS  - 1618-2642 (Linking)
VI  - 380
IP  - 1
DP  - 2004 Sep
TI  - The fluorescence enhancement effect of the Tb-Gd-guanosine-5'-triphosphate-phen 
      system and its analytical application.
PG  - 104-7
AB  - It has been found that Tb(3+) can react with guanosine-5'-triphosphate (GTP) and 
      o-phenanthroline (phen), resulting in the intrinsic fluorescence of Tb(3+). This 
      fluorescence can be enhanced by adding La(3+), Gd(3+), Lu(3+), Sc(3+), Y(3+), and 
      so on, among which Gd(3+) produces the greatest enhancement. These are new 
      co-luminescence systems. The experiments indicate under optimum conditions, the 
      fluorescence intensity of the Tb-Gd-GTP-phen system is proportional to the 
      concentration of GTP over the range 1x10(-9) to 3x10(-5) mol/l. The detection 
      limit is 3.1x10(-10) mol/l. The proposed method provides the most sensitive 
      fluorimetry of GTP so far. The mechanism of the Tb-Gd-GTP-phen system has also 
      been studied. The data indicates that there is a large congeries of 
      Tb-Gd-GTP-phen, and the fluorescence enhancement of the Tb-Gd-GTP-phen system is 
      considered to originate from intramolecular and intermocular energy transfers, 
      and the energy-insulating sheath of the Gd complex.
FAU - Zhao, Zongshan
AU  - Zhao Z
AD  - Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School 
      of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, P.R. 
      China.
FAU - Yang, Jinghe
AU  - Yang J
FAU - Wu, Xia
AU  - Wu X
FAU - Su, Benyu
AU  - Su B
FAU - Sun, Changxia
AU  - Sun C
FAU - Liu, Shufang
AU  - Liu S
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20040806
PL  - Germany
TA  - Anal Bioanal Chem
JT  - Analytical and bioanalytical chemistry
JID - 101134327
RN  - 0 (Organometallic Compounds)
RN  - 0 (Phenanthrolines)
RN  - 06SSF7P179 (Terbium)
RN  - 86-01-1 (Guanosine Triphosphate)
RN  - AU0V1LM3JT (Gadolinium)
RN  - W4X6ZO7939 (1,10-phenanthroline)
SB  - IM
MH  - Gadolinium/*chemistry
MH  - Guanosine Triphosphate/*chemistry
MH  - Organometallic Compounds/*chemistry
MH  - Phenanthrolines/*chemistry
MH  - Sensitivity and Specificity
MH  - Spectrometry, Fluorescence/methods
MH  - Terbium/*chemistry
EDAT- 2004/08/10 05:00
MHDA- 2005/12/13 09:00
CRDT- 2004/08/10 05:00
PHST- 2004/01/08 00:00 [received]
PHST- 2004/05/12 00:00 [revised]
PHST- 2004/05/25 00:00 [accepted]
PHST- 2004/08/10 05:00 [pubmed]
PHST- 2005/12/13 09:00 [medline]
PHST- 2004/08/10 05:00 [entrez]
AID - 10.1007/s00216-004-2690-2 [doi]
PST - ppublish
SO  - Anal Bioanal Chem. 2004 Sep;380(1):104-7. doi: 10.1007/s00216-004-2690-2. Epub 
      2004 Aug 6.