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2 protocols using 1 4 dioxane

1

Synthesis and Characterization of Bioactive Gelators

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N-Boc-l-phenylalanine, l-phenylalanine methyl ester hydrochloride, d-phenylalanine
methyl ester hydrochloride, and 2-(naphthalen-2-yloxy)acetic acid
were obtained from Sigma-Aldrich; glucono-δ-lactone, 1,4-dioxane,
and lithium hydroxide were purchased from Alfa Aesar; diethyl ether, N-methylmorpholine, sodium hydroxide, and hydrochloric acid
were received from Honeywell; acetonitrile, chloroform, tetrahydrofuran,
and sodium chloride were acquired from Fisher Scientific; hydrogen
chloride (ca 4 mol/L in 1,4-dioxane) was obtained from Tokyo Chemical
Industry; magnesium sulfate, dichloromethane, trifluoroacetic acid,
and isobutyl chloroformate were purchased from VWR International,
Fluorochem, and Thermo Scientific, respectively. All chemicals were
used directly without further treatment. Deionized water was used
throughout this research.
Full synthetic protocols and characterization
data for the two gelators used here are described in the Supporting
Information (Figures S1–S18).
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2

Synthesis and Characterization of Zr-based MOF for PCA Detection

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All reagents used in this study were of analytical grade unless otherwise stated. 2-aminoterephthalic acid (ATA) (99%) and Zirconium chloride (ZrCl 4 ) (98%) were gained from Aladdin Reagent Co., Ltd. (Shanghai, China). Dimethylformamide (DMF) (99%) , tetrahydrofuran (THF), mesitylene (97%), acetonitrile (CAN)and 1,4-dioxane were gained from Tokyo Chemical Industry Co., Ltd. (Tokyo, Japan). 1,3,5-Tris (4-aminophenyl) benzene (TAPB) (97%) and 2,5-Divinylterephthalaldehyde (DVA) were obtained from Shanghai Macklin Biochemical Technology Co., Ltd., (Shanghai, China). Methanol, acetone, and glacial acetic acid (HAC) were achieved from Sinopharm Chemical Reagent Co., Ltd. (Shanghai, China). 4-chloro-2-methylphenoxy acetic acid (MCPA), 2,4-dichlorophenoxyacetic acid (2,4-D), 2,4Dichlorprop (2,4-DP), 2,4dichlorophenoxybutyric acid (2,4-DB), and 2-(2,4,5-trichlorophenoxy) propanoic acid (2,4,5-TP), were purchased from ANPEL Laboratory Technology Inc. (Shanghai, China). For the standard solution of 100 μg⋅L -1 , five kinds of PCAs were dissolved in a 100 mL volumetric flask with Methanol and stored in 4 • C. A series of working aqueous solutions were obtained by diluting the standard solution with pure water.
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