The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2024
Filed:
Oct. 19, 2023
Yanhui Dong, Beijing, CN;
Jingfan YE, Beijing, CN;
Yanhui Dong, Beijing, CN;
Jingfan Ye, Beijing, CN;
Abstract
A method for detecting adsorption performance of microplastics for heavy metals using low-field NMR relaxation method, including: establishing a reference line reflecting a relationship between a target heavy metal ion concentration and a transverse relaxation time; conducting a heavy metal adsorption experiment on microplastics and obtaining samples at different time points; detecting transverse relaxation times of the multiple samples obtained; determining a heavy metal ion concentration of each sample based on the reference line of the target heavy metal ion concentration and the transverse relaxation time; analyzing data and implementing a model fitting process. The method according to the present disclosure does not require cumbersome and complicated sample pre-processing, it can be measured immediately after sampling, it is simple, fast and low-cost, the method has a wide detection limit, the detection is faster, non-destructive testing can be achieved.