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. 2018 Jan 10;8:286. doi: 10.1038/s41598-017-18322-w

Figure 7.

Figure 7

Colorimetric detection of citrate against various anions with 1·EY (1/EY = 5:1, [EY]0 = 2 × 10−5 M) in water at pH 7.0. Top: visible light; Bottom: UV light at 365 nm. 10 equiv. of anion were added to the solution of 1·EY.