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Title: Terbium metal organic framework: Microwave synthesis and selective sensing of nitrite
Authors: Pimchanok Tapangpan
Kitt Panyarat
Chaiyos Chankaew
Kate Grudpan
Apinpus Rujiwatra
Keywords: Chemistry
Materials Science
Issue Date: 1-Jan-2020
Abstract: © 2019 Elsevier B.V. The rapid and facile microwave method has been employed to synthesize [Tb2(TTHA)(H2O)4]·9H2O (I; H6TTHA = 1,3,5-triazine-2,4,6-triaminehexaacetic acid) microcrystals. Based on the photoluminescent emission of I, which can be selectively turned off upon the coordination of nitrite, the selective determination of nitrite in water was developed without the use of Griess reagents. With the use of smartphone camera as a detector, the quantitative analysis of nitrite was conducted within the CIELAB colorimetric space, revealing the relative standard deviation of less than 5% for the working range of 3–12 μg. Sensitivity, detection limit and quantification limit of the measurements were evaluated, providing the values of 0.732 (Lcontrol/Lsample)·μg−1, 1 μg and 3 μg, respectively.
ISSN: 13877003
Appears in Collections:CMUL: Journal Articles

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