公开(公告)号：US20240310285A1

公开(公告)日：2024-09-19

申请号：US18681426

申请日：2022-08-04

Applicant: EAST CHINA NORMAL UNIVERSITY

Inventor： Yang TIAN ,  Zhichao LIU

IPC: G01N21/65

CPC classification number: G01N21/65 ,  G01N2021/656 ,  G01N2201/06113 ,  G01N2201/0826 ,  G01N2201/0833

Abstract: An optical-fiber Raman photometer. The optical-fiber Raman photometer comprises: a light source portion; a scanning system, wherein the core of the scanning system is based on a laser confocal unit, the scanning system comprises a first filter, a second filter, a first reflector, a second reflector, a scanner and an objective lens, and an excitation light is generated from a fiber laser, then passes through the first filter, the first reflector, the second filter and the second reflector in sequence and enters the scanner, and is then focused by means of the objective lens; a detection system, wherein the detection system performs signal transmission and collection based on a multi-mode optical fiber, an end of the optical fiber is tapered, an incident light enters the optical fiber after being focused by the objective lens, the excitation light is emitted from the tapered end of the optical fiber to excite a probe to generate Raman signals, and the Raman signals are then collected by means of the same optical fiber; and a signal collection system, wherein the signal collection system partially overlaps with the scanning system, and when the Raman signals collected by the optical fiber return to the scanner, the Raman signals return to a Raman spectrometer by means of the second reflector and the second filter, and the Raman spectrometer reads out the Raman signals.

公开(公告)号：US20230339837A1

公开(公告)日：2023-10-26

申请号：US18135893

申请日：2023-04-18

Applicant: East China Normal University

Inventor： Limin ZHANG ,  Yang TIAN ,  Zehui CHEN

IPC: C07C51/41 ,  C09K23/00

CPC classification number: C07C51/412 ,  C09K23/00

Abstract: The present disclosure belongs to the technical field of liquid/liquid interface electrochemistry and analytical chemistry, and specifically provides construction of a microtube-based ionic liquid colloid/water interface and use. In the present disclosure, the construction method of an ionic liquid colloid/water interface with a high stability and a desirable selectivity includes the following steps: adding a poly(ionic liquid) into an ionic liquid to form an ionic liquid colloid, to enhance an interfacial stability of an organic phase; and adding a potassium ionophore into the organic phase to form a selective ionic liquid colloid/water interface. In this way, the ionic liquid colloid/water interface with a high stability and a desirable selectivity is constructed. The interface is applied to the detection of K+ in a cerebral cortex, and is of great significance for studying a behavior of the K+ in vivo and a relationship of the K+ with diseases.