This study evaluated the accuracy of amperometric
technology for measuring chlorine residual concentrations in practical applications relative to the
reference colorimetric method. The authors
analyzed responses of several colorimetric and amperometric analyzers to changes introduced to the same
sample. The comparison was conducted anonymously, the sample conditions were tightly controlled, and
the tests included, but were not limited to, the following parameters: response time; LOD/LOQ; short-term and
long-term repeatability; and, pH and conductivity dependence. The study was conducted according to the
guidelines of the ISO method for process analyzers evaluation (ISO 15839:2003). In the course of
presenting the study results and discussion, the authors made several observations indicating that
performance specifications of online amperometric analyzers are often overstated by the manufacturers.
The main conclusion of the study was that, in general, colorimetric systems performed better compared
to amperometric/polarographic systems. Includes 6 references, tables, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 4.1 MB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 22 |
| Published : | 11/01/2009 |
