2013 Fiscal Year Final Research Report
Development of onsite multi analysis system for ions in aquatic samples based on novel fluoroionophores
| Project/Area Number |
23686074
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (A)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Civil and environmental engineering
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
SATOH Hisashi 北海道大学, 工学(系)研究科(研究院), 准教授 (80326636)
|
|---|
| Project Period (FY) |
2011-04-01 – 2014-03-31
|
| Keywords | センサ |
|---|
| Research Abstract |
Fluorescence spectroscopy has great potential for on-site and real-time monitoring of pollutants in aquatic environments; however, its application to environmental aquatic samples has been extremely limited. In this study, a novel fluoroionophore based on a BODIPY-terpyridine conjugate was developed and applied to determine Zn concentrations in urban runoff. The fluoroionophore selectively bound to Zn2+ in water. Zn concentrations could be quantified using the ratio of fluorescence intensities, and the detection limit was 9 ug/L, which is sufficiently low for environmental aquatic samples. To demonstrate applicability of the method to environmental samples, we measured Zn concentrations in urban runoff samples with a complex matrix. The total and dissolved fractions of Zn in the samples could be determined by fluorescence spectroscopy and its relative error was estimated to be less than 30% by inductively coupled plasma-atomic emission spectroscopy analysis.
|
