Browse > Article
http://dx.doi.org/10.7857/JSGE.2016.21.3.001

Determination of Mercury Ion in Contaminated Soil by Rhodamine B Hydrazide  

Kim, Kyungtae (Department of Civil & Environmental Engineering, Seoul National University)
Park, Junboum (Department of Civil & Environmental Engineering, Seoul National University)
Publication Information
Journal of Soil and Groundwater Environment / v.21, no.3, 2016 , pp. 1-5 More about this Journal
Abstract
Rhodamine B Hydrazide as a novel fluorescent and colorimetric probe exhibiting remarkably selective fluorescence enhancement toward Hg2+ ion over other 16 metal ions is herein introduced. The probe reacts with Hg2+ ion followed by its spirolactam ring-opening to give a remarkable enhancement of absorption maximum at 550 nm as well as an enhanced fluorescence intensity at 580 nm in aqueous media. Upon titration with Hg2+ ion in various concentration of 10~200 uM, we found that the probe shows a marked color change from colorless to pink, enabling naked-eye detection toward mercury ion. In addition, in the presence of Hg2+ ion, the probe gave rise to change from non-florescence to strong orange fluorescence (Off-On) with a good linearity of R2=0.97. This preliminary results demonstrate that the fluorescent chemosensor we herein introduced can open a new strategy for marked selective and sensitive detection of mercury ions in contaminated soil containing various metal ions.
Keywords
Mercury detection; Fluorescence chemosensor; Soil contamination; Extraction;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Long, F., Zhu, A., Shi, H., Wang, H., and Liu, J., 2013, Rapid on-site/in-situ detection of heavy metal ions in environmental water using a structure-switching DNA optical biosensor, Sci. Rep., 3.
2 Cui, X. and Zhang, H.M., 2014, Study on the construction and performance of a Hg(II)-sensing system having an “off–on” probe derived from rhodamine and an up-conversion excitation core, J. Lumin., 145, 539-546.   DOI
3 Darbha, G.K., Ray, A., and Ray, P.C., 2007, Gold nanoparticle-based miniaturized nanomaterial surface energy transfer probe for rapid and ultrasensitive detection of mercury in soil, water, and fish, Acs Nano, 1(3), 208-214.   DOI
4 Dujols, V., Ford, F., and Czarnik, A.W., 1997, A long-wave-length fluorescent chemodosimeter selective for Cu (II) ion in water, J. Am. Chem. Soc., 119(31), 7386-7387.   DOI
5 Ministry of Environment (MOE), 2009, Soil conservation basic Plan (#11-1480000-001048-01).
6 National Institute of Environmental Research (NIER), 2005, Evaluation and establishment of the soil pollution standards (II) (#11-1480083-000268-10).
7 Tessier, A., Campbell, P.G., and Bisson, M., 1979, Sequential extraction procedure for the speciation of particulate trace metals, Anal. Chem., 51(7), 844-851.   DOI
8 Yoon, J., 2009, Fluorescent Chemosensors, KBCS, 4(1), 3-6.