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| Two Tetrapodal Schiff Bases Acting as Colorimetric Sensors for Iron in Environmental Water Samples |
| Author Name | Affiliation | E-mail | | WANG Ruo | College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China | | | JIANG Guang-Qi | State Key Laboratory Breeding Base of Green Pesticide and Agricultural Bioengineering, Key Laboratory of Green Pesticide and Agricultural Bioengineering, Ministry of Education, Guizhou University, Guiyang 550025, China
College of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China | gqjiang@163.com |
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| Abstract: Two colorimetric sensors, derived from pentaerythrityltetramine and salicylaldehyde (1) or o-vanillin (2), had been synthesized. Both sensors showed selective colorimetric sensing ability for Fe(Ⅱ) and Fe(Ⅲ) by changing color from light yellow to either orange or purple when immersed in water samples. The sensors coordinated to Fe(Ⅲ) with 1:1 stoichiometry, as has been confirmed from the results of LC-MS spectrometry and UV-Vis spectrum titration. The detection limits of sensors 1 (0.19 μmol·L-1) and 2 (0.21 μmol·L-1) are lower than the WHO guideline (5 μmol·L-1) in drinking water. |
| Keywords: Schiff base colorimetric sensor iron |
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| WANG Ruo,JIANG Guang-Qi.Two Tetrapodal Schiff Bases Acting as Colorimetric Sensors for Iron in Environmental Water Samples[J].Chinese Journal of Inorganic Chemistry,2017,33(5):881-889. |
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