Abstract

The contamination of aquatic environments with heavy metal ions is characterized by their resistance to natural degradation, leading to their bioaccumulation in plants and animals, consequently posing a significant threat to human health. The detection of toxic metal ions is of great significance in environmental protection and disease prevention. In this work, a rapid and automated method for the simultaneous detection of Pb2+, Hg2+ and As3+ in water was proposed. An aptamer-based colorimetric assay and a centrifugal microfluidic chip to realize the function of sampling, mixing, reaction etc. The microfluidic chip and centrifugal device were properly designed and developed. Besides, the detection parameters were optimized by analyzing the sensitivity and selectivity. Results showed that the detection system was able to realize the automatic detection of the multiple heavy metal ions within 30 min, and the limits of detection for Pb2+, Hg2+ and As3+ were 6.16 ppb, 4.97 ppb and 5.24 ppb. The self-developed system can be utilized as a promising platform for the rapid detection of multiple heavy metal ions in practical applications.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.