Title:
METHOD FOR SIMULTANEOUSLY AND RAPIDLY DETERMINING CHLORINE, BROMINE AND IODINE BY MEANS OF COMBINATION OF HIGH-TEMPERATURE HYDROLYSIS AND ICP-MS
Document Type and Number:
WIPO Patent Application WO/2024/077976
Kind Code:
A1
Abstract:
A method for simultaneously and rapidly determining chlorine, bromine and iodine by means of a combination of high-temperature hydrolysis and ICP-MS. The method comprises: (1) placing a substance to be determined in a sample container, laying asbestos on the surface of the substance to be determined, and subjecting same to a high-temperature hydrolysis treatment, involving: first, optionally preheating same at 500-600°C for 3-10 min, then heating same at 700-800°C for 3-10 min, and then burning same at 1000-1100°C for 10-30 min; (2) acquiring a standard curve of the corresponding concentration value and net intensity value of each element; and (3) testing the net intensity of the liquid in step (1) by using ICP-MS in combination with an online internal standard method, and acquiring the contents of chlorine, bromine and iodine in the substance to be determined in conjunction with the standard curve. By means of the method, the phenomenon of deflagration can be avoided, the operation is simple, rapid and environmentally friendly, the detection accuracy is high, and the contents of trace chlorine, bromine and iodine in a substance to be determined can be rapidly detected at the same time.
Inventors:
SHI YEHONG (CN)
SUN JIALIANG (CN)
YANG FEI (CN)
HAN PENGCHENG (CN)
ZHAO ZHEN (CN)
LI HUACHANG (CN)
FANG SHENGNAN (CN)
XU BICONG (CN)
WANG XUAN (CN)
SUN JIALIANG (CN)
YANG FEI (CN)
HAN PENGCHENG (CN)
ZHAO ZHEN (CN)
LI HUACHANG (CN)
FANG SHENGNAN (CN)
XU BICONG (CN)
WANG XUAN (CN)
Application Number:
PCT/CN2023/098286
Publication Date:
April 18, 2024
Filing Date:
June 05, 2023
Export Citation:
Assignee:
BGRIMM MTC TECH CO LTD (CN)
International Classes:
G01N27/626
Attorney, Agent or Firm:
MUDA INTELLECTUAL PROPERTY FIRM (CN)
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