Title:
POLYCYCLIC AROMATIC HYDROCARBON PASSIVE SAMPLING DEVICE BASED ON THIN-FILM DIFFUSION GRADIENT TECHNOLOGY AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/252217
Kind Code:
A1
Abstract:
A polycyclic aromatic hydrocarbon passive sampling device based on thin-film diffusion gradient technology and an application thereof. The passive sampling device comprises an adsorption film, and a preparation method for the adsorption film is as follows: first, modifying calcium-based bentonite with Tween 80, sodium dodecyl sulfonate, hexadecyl trimethyl ammonium bromide and tetramethylammonium bromide; then, preparing a calcium DGT adsorption film by combining acrylamide, N-N' methylene bisacrylamide, ammonium persulfate and tetramethyl ethylenediamine; and finally, taking the acrylamide and a chitosan crosslinking agent as a diffusion film, taking a cellulose acetate film as a filter membrane to form a DGT passive sampling device, and using the passive sampling device to monitor polycyclic aromatic hydrocarbon naphthalene in a water, soil and sediment-water interface. After sampling is completed, the adsorption film is eluted with a methanol/ethanol eluent, and then the concentration of naphthalene in the eluent is measured by using a liquid chromatograph. The passive sampling device can realize the monitoring of the dissolved polycyclic aromatic hydrocarbon naphthalene of the water, soil and sediment-water interface, avoids a large amount of sample collection, and significantly reduces the detection cost.
Inventors:
ZHANG ZHAOYONG (CN)
GAO YONGCHAO (CN)
ZHENG LIWEN (CN)
HUANG YUJIE (CN)
ZHANG WEN (CN)
ZHAO QINGQING (CN)
CHEN GUANHONG (CN)
WANG JIANING (CN)
GAO YONGCHAO (CN)
ZHENG LIWEN (CN)
HUANG YUJIE (CN)
ZHANG WEN (CN)
ZHAO QINGQING (CN)
CHEN GUANHONG (CN)
WANG JIANING (CN)
Application Number:
PCT/CN2021/098339
Publication Date:
December 08, 2022
Filing Date:
June 04, 2021
Export Citation:
Assignee:
ECOLOGY INSTITUTE OF SHANDONG ACADEMY OF SCIENCES CHINA JAPAN FRIENDSHIP BIOTECHNOLOGY RES CENTER SH (CN)
International Classes:
G01N13/00; B01D69/02; B01D69/12; G01N1/40
Domestic Patent References:
| WO2017177099A1 | 2017-10-12 |
Foreign References:
| CN111103216A | 2020-05-05 | |||
| CN108452780A | 2018-08-28 | |||
| CN105148847A | 2015-12-16 | |||
| CN109772278A | 2019-05-21 | |||
| CN111992189A | 2020-11-27 |
Attorney, Agent or Firm:
JINAN SPRING PATENT&TRADEMARK OFFICE (CN)
Download PDF:
Previous Patent: HYBRID VEHICLE AND HIGH-VOLTAGE BATTERY CONTROL METHOD AND APPARATUS THEREFOR
Next Patent: RESOURCE SELECTION METHOD AND DEVICE
Next Patent: RESOURCE SELECTION METHOD AND DEVICE