Patents Assigned to GUANGZHOU QUALITY SUPERVISION AND TESTING INSTITUTE
  • METHOD FOR DETECTING UREA-FORMALDEHYDE RESIN IN MELAMINE-FORMALDEHYDE MATERIALS
    Publication number: 20240319150
    Abstract: A method for detecting urea-formaldehyde resin in melamine-formaldehyde materials is provided. The method includes the following steps: washing samples to be tested with hydrochloric acid solution, placing it at 110° C.±5° C. for hydrolysis for 60 min±5 min, passing through a polyethersulfone filter membrane to obtain the test solution, and detecting the test solution through high-performance liquid chromatography-mass spectrometry.
    Type: Application
    Filed: September 27, 2023
    Publication date: September 26, 2024
    Applicant: GUANGZHOU QUALITY SUPERVISION AND TESTING INSTITUTE
    Inventors: Yiguang CHEN, Wenshu ZHANG, Peilin ZHANG, Guoshan HE, Xiaogang HUANG, Zerong LI, Xiaoting XIONG