PMID- 25025314
OWN - NLM
STAT- MEDLINE
DCOM- 20150709
LR  - 20221207
IS  - 1873-3557 (Electronic)
IS  - 1386-1425 (Linking)
VI  - 134
DP  - 2015 Jan 5
TI  - Enhanced fluorescence quenching in an acridine orange - alizarin red system 
      through matrine and its analytical application.
PG  - 413-8
LID - S1386-1425(14)01014-2 [pii]
LID - 10.1016/j.saa.2014.06.115 [doi]
AB  - This study shows that alizarin red (AR) only slightly quenched fluorescence for 
      acridine orange (AO) in an AR/AO mixed solution at pH=5-6. The reduced 
      fluorescent signal was closely and linearly associated with the level of MT added 
      to the system, which is the basis for a new quantitative MT assay method using 
      the fluorescence quenching reaction in the AO-AR system. The results show that 
      under optimal conditions, this method had a 14.9-43.5 mg L(-1) linear detection 
      range with a 1.38 mg L(-1) detection limit and 1.24% precision. In addition, this 
      method was used to determine the MT levels in the commercially available 
      MT-containing pesticides and suppositories, which showed a 96.6-103% recovery. 
      Therefore, this method has multiple advantages, including simple and fast 
      operation, high accuracy and low cost. Moreover, herein, we investigated the 
      underlying mechanism in-depth using an ultraviolet (UV) spectroscopic technique.
CI  - Copyright (c) 2014 Elsevier B.V. All rights reserved.
FAU - Wei, Xiaoling
AU  - Wei X
AD  - College of Chemistry and Chemical Engineering, Guangxi University, Nanning 
      530004, China.
FAU - Wang, Xiaojun
AU  - Wang X
AD  - College of Chemistry and Chemical Engineering, Guangxi University, Nanning 
      530004, China.
FAU - Gong, Qi
AU  - Gong Q
AD  - College of Chemistry and Chemical Engineering, Guangxi University, Nanning 
      530004, China.
FAU - Wang, Lisheng
AU  - Wang L
AD  - College of Chemistry and Chemical Engineering, Guangxi University, Nanning 
      530004, China. Electronic address: wxl2558@163.com.
FAU - Zhou, Shiwu
AU  - Zhou S
AD  - College of Chemistry and Chemical Engineering, Guangxi University, Nanning 
      530004, China.
LA  - eng
PT  - Evaluation Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20140627
PL  - England
TA  - Spectrochim Acta A Mol Biomol Spectrosc
JT  - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
JID - 9602533
RN  - 0 (Alkaloids)
RN  - 0 (Anthraquinones)
RN  - 0 (Fluorescent Dyes)
RN  - 0 (Quinolizines)
RN  - 60MEW57T9G (alizarin)
RN  - F30N4O6XVV (Acridine Orange)
RN  - 0 (Matrines)
SB  - IM
MH  - Acridine Orange/*chemistry
MH  - Alkaloids/*analysis
MH  - Anthraquinones/*chemistry
MH  - Fluorescence
MH  - Fluorescent Dyes/*chemistry
MH  - Limit of Detection
MH  - Quinolizines/*analysis
MH  - Spectrometry, Fluorescence/methods
MH  - Matrines
OTO - NOTNLM
OT  - Acridine orange (AO)
OT  - Alizarin red (AR)
OT  - Energy transfer
OT  - Fluorescence quenching
OT  - Matrine
EDAT- 2014/07/16 06:00
MHDA- 2015/07/15 06:00
CRDT- 2014/07/16 06:00
PHST- 2013/11/21 00:00 [received]
PHST- 2014/06/16 00:00 [revised]
PHST- 2014/06/18 00:00 [accepted]
PHST- 2014/07/16 06:00 [entrez]
PHST- 2014/07/16 06:00 [pubmed]
PHST- 2015/07/15 06:00 [medline]
AID - S1386-1425(14)01014-2 [pii]
AID - 10.1016/j.saa.2014.06.115 [doi]
PST - ppublish
SO  - Spectrochim Acta A Mol Biomol Spectrosc. 2015 Jan 5;134:413-8. doi: 
      10.1016/j.saa.2014.06.115. Epub 2014 Jun 27.