Related Experiment Video
Updated: Aug 14, 2026

Colorimetric Paper-based Detection of Escherichia coli, Salmonella spp., and Listeria monocytogenes from Large Volumes of Agricultural Water
Published on: June 9, 2014
[Detection of Escherichia coli in wastewater based on enzyme immunoassay]
Hai-Yan Xi1, Qiang Cai, Miao He
1State Key Joint Laboratory of Environmental Simulation and Pollution Control, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.
Abstract:
This research described the fast detection method based on ELISA for the E. coli in drain of wastewater treatment plants. The optimized conditions, such as reaction format (sandwich or direct), the concentration of HRP-E. coli conjugate, anti-HPR antibody and pretreatment of E. coli, were studied. Those results showed that the linear range of detection for E. coli was 10 CFU/ mL - 6 x 10(4) CFU/mL. This method shows the potential ability for the technics control of wastewater treatment plants. Comparing with conventional methods, it is a convenient and sensitive detection method with low cost.

