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| Content Provider | Springer Nature Link |
|---|---|
| Author | Gao, Shangfen Tan, Guangqun Yuan, Hongyan Xiao, Dan Choi, Martin M. F. |
| Copyright Year | 2006 |
| Abstract | A simple and green analytical procedure based on chlorophyll a is presented for the determination of Hg2+ ion. Chlorophyll a was extracted and purified from the leaves of pea and is employed as a reagent for analysis of Hg2+ ion. It displays remarkable fluorescence emission at 674 nm when excited at 412 nm. The emission intensity decreased significantly on exposure to various concentrations of Hg2+ ion. This forms the basis for the determination of Hg2+ ion. The proposed method was evaluated for sensitivity and selectivity. The linear concentration range was found to be 2.0–10 μM with r2 = 0.997 and the limit of detection for Hg2+ ion was 1.3 μM. Ions including Pb2+, Cd2+, Ag+, Zn2+, Co2+, Ni2+, Cu2+, Mg2+, Mn2+, Ru3+, Er3+, K+, Na+, NH4+, Cl−, NO3−, CH3COO− and SO42− did not interfere with the measurement of Hg2+ ion even at 500-fold excess. Since chlorophyll a is widely available in the leaves of most plants, and the extraction and purification process is simple, this technique can provide an alternative, sensitive and economical way to determine Hg2+ ion. |
| Starting Page | 159 |
| Ending Page | 162 |
| Page Count | 4 |
| File Format | |
| ISSN | 00263672 |
| Journal | Microchimica Acta |
| Volume Number | 153 |
| Issue Number | 3-4 |
| e-ISSN | 14365073 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2006-01-11 |
| Publisher Place | Vienna |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Inorganic Chemistry Physical Chemistry Monitoring/Environmental Analysis/Environmental Ecotoxicology Analytical Chemistry Characterization and Evaluation Materials |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry |
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