Publication
New publication on single-reagent free-chlorine monitoring
October 2026
OneStep Technologies has published a new study in Environmental Monitoring and Assessment (Springer Nature):
A stabilized single-reagent TMB method for free chlorine monitoring in drinking-water-related matrices
The study evaluates a stabilized single-reagent TMB method for free chlorine monitoring across drinking-water-related matrices, showing close agreement with routine DPD measurements.
For online water monitoring, the opportunity is clear: fewer reagent streams, simpler fluidics, and reliable data.
The work supports OneStep Technologies' broader effort toward simpler, lower-maintenance chlorine measurement architectures.

Publication
A stabilized single-reagent TMB method for free chlorine monitoring in drinking-water-related matrices
Hao Zhang · Environmental Monitoring and Assessment · 2026
Volume 198, Article 1142
DOI: 10.1007/s10661-026-15979-7