Patents Assigned to CHANGSHA KAIYUAN HONGSHENG TECHNOLOGY CO., LTD
  • Patent number: 11754494
    Abstract: A device for simultaneously measuring mercury, cadmium, zinc, and lead is provided, including: a gas generating device; a quartz analysis tube connected to the gas generating device, and the quartz analysis tube includes a sample heating zone, a high-temperature packing zone and a quartz collimating tube; an atomic absorption detection device AA1 arranged behind the quartz analysis tube, where the atomic absorption detection device includes an atomic absorption detector, a flame, and a light source; a quartz catalytic tube arranged behind the atomic absorption detection device, where the quartz catalytic tube includes a flame buffer zone and an adsorption packing zone; and an atomic absorption mercury measuring device arranged behind the quartz catalytic tube, where the atomic absorption mercury measuring device includes a mercury enrichment tube, an atomic absorption detector AA2 and an air pump.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: September 12, 2023
    Assignee: CHANGSHA KAIYUAN HONGSHENG TECHNOLOGY CO., LTD
    Inventors: Li Feng, Guo Sun, Te Xiao
  • Publication number: 20230160813
    Abstract: A device for simultaneously measuring mercury, cadmium, zinc, and lead is provided, including: a gas generating device; a quartz analysis tube connected to the gas generating device, and the quartz analysis tube includes a sample heating zone, a high-temperature packing zone and a quartz collimating tube; an atomic absorption detection device AA1 arranged behind the quartz analysis tube, where the atomic absorption detection device includes an atomic absorption detector, a flame, and a light source; a quartz catalytic tube arranged behind the atomic absorption detection device, where the quartz catalytic tube includes a flame buffer zone and an adsorption packing zone; and an atomic absorption mercury measuring device arranged behind the quartz catalytic tube, where the atomic absorption mercury measuring device includes a mercury enrichment tube, an atomic absorption detector AA2 and an air pump.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 25, 2023
    Applicant: CHANGSHA KAIYUAN HONGSHENG TECHNOLOGY CO., LTD
    Inventors: Li FENG, Guo SUN, Te XIAO