Guilong Xiao’s research while affiliated with Xihua University and other places

What is this page?


This page lists works of an author who doesn't have a ResearchGate profile or hasn't added the works to their profile yet. It is automatically generated from public (personal) data to further our legitimate goal of comprehensive and accurate scientific recordkeeping. If you are this author and want this page removed, please let us know.

Publications (1)


Single crystal structure of compound H2L.
The Uv(a) and fluorescence (b)responses of probe H2L (1.0×10⁻⁵ mol/L) in water system /DMSO (V/V=1 : 4) solution upon the addition of various metal ions (1.0×10⁻⁴ mol/L) (λex=420 nm), (c) Photographs of various ions and probes under ultraviolet light (365 nm).
(a) The UV response of probe L by adding Mg²⁺ and other metal ions into the mixed system; (b) Probe H2L Fluorescence response by adding Mg²⁺ and other metal ions in the mixed system (λex=420 nm);(final concentration of probe L: 1.0×10⁻⁵ mol/L; final concentration of metal ions: 1.0×10⁻⁴ mol/L)
(a)Fluorescence of H2L (1.0×10⁻⁵ mol/L) (b)Fluorescence Intensity of H2L (1.0×10⁻⁵ mol/L, λem=555 nm) in water system / DMSO (V/V=1 : 4) upon the addition of Mg²⁺ (λex=420 nm).
Linear relationship between fluorescence intensity of probe H2L and Mg²⁺ in the system mixture.

+11

Study of the Synthesis and Application of a Fluorescence‐Enhanced Mg Probe
  • Article
  • Publisher preview available

December 2021

·

18 Reads

·

9 Citations

Huizhen Wang

·

Songsong Xue

·

Guilong Xiao

·

[...]

·

A Schiff base fluorescent probe compound H2L (N′‐(4‐bromo‐2‐hydroxy‐benzylidene)‐3‐hydroxy‐2naphthohydrazide) was synthesized using 3‐hydroxy‐2‐naphthoic acid hydrazide as raw material. The structure of H2L was characterized by NMR, IR, MS, and XRD methods. The fluorescence performance of H2L was studied by UV and FS. The results show that in 1 : 4 water system /DMSO solution (water system: 20 % triethanolamine:0.1 mol/L L‐cysteamine acid=1 : 1), H2L can be used to quickly identify Mg²⁺ with an obvious fluorescence enhancement and redshift. A color change “light green→bright yellow” can be clearly observed with the naked eye. The Mg²⁺ concentration shows a good linear relationship in the range of 0–1.0×10⁻⁵ mol/L, with a detection limit of 1.77×10⁻⁷ mol/L with good stability and reversibility. The response mechanism was explored through Job's curve, NMR titration and MS, which showed that Mg²⁺ can form a 1 : 1 complex with H2L. A gel (SAL) was prepared by doping H2L into sodium alginate (SA). SAL was found to show good adsorption properties for Mg²⁺ and can be easily distinguished by the naked eye under ultraviolet light. The microscopic morphology and composition of SAL before and after Mg²⁺ adsorption were analyzed by SEM‐EDS. H2L can be used for the qualitative detection of Mg²⁺ in actual water samples without being affected by other common metal ions, and has potential application value in the field of environmental detection.

View access options