Patents by Inventor Mengchan XU

Mengchan XU has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for determining hydrogen sulfide by headspace single-drop liquid phase microextraction and intelligent device colorimetry
    Patent number: 11965826
    Abstract: The present invention provides a method for determining hydrogen sulfide (H2S) by headspace single-drop liquid phase microextraction and intelligent device colorimetry, which comprises: taking a silver-gold core-shell triangular nanosheet (Ag@Au TNS) as a nanodetection probe, in combination with an analysis method of headspace single-drop microextraction (HS-SDME), specifically extracting H2S volatilized from a sample to be detected by the nanodetection probe, and detecting H2S in the extracted sample with the help of the photographing function of an intelligent device and a color picking software. Compared with the prior art, the present invention adopts intelligent device colorimetry, with the limit of detection of about 65 nM and the linear range of 0.1-100 ?M, and the established method can be applied to the determination of H2S in actual samples such as egg white, milk and other opaque samples, and has the advantages of few procedures, simple operation, high detection efficiency and the like.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: April 23, 2024
    Assignee: JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Sheng Tang, Wei Shen, Tong Qi, Mengchan Xu, Mengyuan Xu, Anni Zhu
  • METHOD FOR DETERMINING HYDROGEN SULFIDE BY HEADSPACE SINGLE-DROP LIQUID PHASE MICROEXTRACTION AND INTELLIGENT DEVICE COLORIMETRY
    Publication number: 20220155222
    Abstract: The present invention provides a method for determining hydrogen sulfide (H2S) by headspace single-drop liquid phase microextraction and intelligent device colorimetry, which comprises: taking a silver-gold core-shell triangular nanosheet (Ag@Au TNS) as a nanodetection probe, in combination with an analysis method of headspace single-drop microextraction (HS-SDME), specifically extracting H2S volatilized from a sample to be detected by the nanodetection probe, and detecting H2S in the extracted sample with the help of the photographing function of an intelligent device and a color picking software. Compared with the prior art, the present invention adopts intelligent device colorimetry, with the limit of detection of about 65 nM and the linear range of 0.1-100 ?M, and the established method can be applied to the determination of H2S in actual samples such as egg white, milk and other opaque samples, and has the advantages of few procedures, simple operation, high detection efficiency and the like.
    Type: Application
    Filed: February 28, 2020
    Publication date: May 19, 2022
    Applicant: JIANGSU UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Sheng TANG, Wei SHEN, Tong QI, Mengchan XU, Mengyuan XU, Anni ZHU