Free chlorine in drinking water can be measured by using electrochemical
(amperometric) chlorine sensors with no reagents. The disadvantage of the sensor is its
pH sensitivity. This paper discusses a free chlorine sensor newly developed at
Rosemount Analytical, Inc. The sensor is based on a patented amperometric sensing
technology. The sensor is a three-electrode type. A pH stabilizer in the fill solution
eliminates the effect of sample pH on the measurement. The sensing membrane was
selected to have similar permeability to hypochlorous acid and hypochlorite ion. The
new sensor has no significant pH dependence in the range from pH 6 to 10. The linear
sensing range is from 0 to 20 ppm. Includes 3 references, figures.
| Edition : | Vol. - No. |
| File Size : | 1
file
, 540 KB |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 4 |
| Published : | 06/17/2005 |
