Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 192, Issue -, Pages 82-87Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2017.10.062
Keywords
Rhodamine 6G hydrazide; Chemiluminescence; Chromium(VI)
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Funding
- Natural Science Foundation of Education Department of Sichuan Province [15ZA0074]
- Chengdu University of Technology [JXGG201304]
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In present work, rhodamine B hydrazide and rhodamine 6G hydrazide were synthesized and the chemiluminescence performance has been investigated. Based on the chemiluminescence of rhodamine 6G hydrazide chromium(VI), a selective and sensitive method for the direct detection of chromium(VI) was developed. The chemiluminescence intensity was linearly related to the concentration of chromium(VI) in the range of 2.60 x 10(-8)-8.00 x 10(-6) mol/L with a correlation coefficient of r = 0.998 and a detection limit of 1.4 x 10(-8) mol/L (S/N = 3). The results indicated rhodamine 6G hydrazide was an excellent chemiluminescent probe for chromium(VI) without reduction of chromium(VI) to chromium(III). A possible mechanism of CL emission was also suggested. (C) 2017 Elsevier B.V. All rights reserved.
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