PMID- 16458058
OWN - NLM
STAT- MEDLINE
DCOM- 20060908
LR  - 20161124
IS  - 1386-1425 (Print)
IS  - 1386-1425 (Linking)
VI  - 64
IP  - 4
DP  - 2006 Jul
TI  - Fluorescence quenching method for the determination of sodium carboxymethyl 
      cellulose with acridine yellow or acridine orange.
PG  - 817-22
AB  - In near neutral to weak basic media, sodium carboxymethyl cellulose (NaCMC) will 
      dissociate to become a macro polymeric anion, which can react with acridine 
      yellow (AY) or acridine orange (AO) to form an ion-association complex resulting 
      in fluorescence quenching of the acridine dyes. The maximum fluorescence 
      quenching wavelength is 505 nm (lambda(ex)=440 nm) for AY system and 530 nm 
      (lambda(ex)=493 nm) for AO system, respectively. The fluorescence quenching 
      values (DeltaF) are directly proportional to the concentrations of NaCMC and the 
      linear ranges are 20.0-4000 microg/L for AY system and 20.0-7000 microg/L for AO 
      system, separately. This method has high sensitivity and the detection limits for 
      NaCMC are 58.0 microg/L (AY system) and 157.2 microg/L (AO system). The effects 
      of coexistent substance have been investigated, and the results show that this 
      method has a relatively good selectivity. A fluorescence quenching method for the 
      determination of NaCMC based on the ion-association reactions of CMC polymeric 
      anion with a basic acridine dye was developed. The method is sensitive, simple 
      and fast.
FAU - Liu, Shao Pu
AU  - Liu SP
AD  - School of Chemistry and Chemical Engineering, Southwest China Normal University, 
      Chongqing 400715, China. liusp@swnu.edu.cn
FAU - Sa, Chen
AU  - Sa C
FAU - Hu, Xiao Li
AU  - Hu XL
FAU - Kong, Ling
AU  - Kong L
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20060202
PL  - England
TA  - Spectrochim Acta A Mol Biomol Spectrosc
JT  - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
JID - 9602533
RN  - 0 (Aminoacridines)
RN  - 0 (Fluorescent Dyes)
RN  - F30N4O6XVV (Acridine Orange)
RN  - K679OBS311 (Carboxymethylcellulose Sodium)
RN  - V0923J4F9K (acridine yellow)
SB  - IM
MH  - Acridine Orange/*pharmacology
MH  - Aminoacridines/*pharmacology
MH  - Carboxymethylcellulose Sodium/*chemistry
MH  - Fluorescent Dyes/*pharmacology
MH  - Models, Chemical
MH  - Sensitivity and Specificity
MH  - Spectrometry, Fluorescence/instrumentation/*methods
MH  - Time Factors
EDAT- 2006/02/07 09:00
MHDA- 2006/09/09 09:00
CRDT- 2006/02/07 09:00
PHST- 2005/04/20 00:00 [received]
PHST- 2005/08/04 00:00 [revised]
PHST- 2005/08/16 00:00 [accepted]
PHST- 2006/02/07 09:00 [pubmed]
PHST- 2006/09/09 09:00 [medline]
PHST- 2006/02/07 09:00 [entrez]
AID - S1386-1425(05)00470-1 [pii]
AID - 10.1016/j.saa.2005.08.009 [doi]
PST - ppublish
SO  - Spectrochim Acta A Mol Biomol Spectrosc. 2006 Jul;64(4):817-22. doi: 
      10.1016/j.saa.2005.08.009. Epub 2006 Feb 2.