| Main Title |
Test and evaluation of potassium sensors in fresh- and saltwater / |
| Author |
Ward, Gray K. ;
Ward, Gary K.
|
| CORP Author |
National Ocean Survey, Rockville, MD. Test and Evaluation Lab.;Environmental Protection Agency, Washington, DC. Office of Energy, Minerals and Industry. |
| Publisher |
U.S. Environmental Protection Agency, Office of Research and Development, Office of Energy, Minierals, and Industry ; Available through the National Technical Information Service, |
| Year Published |
1979 |
| Report Number |
EPA/600/7-79/057; |
| Stock Number |
PB-299 266 |
| OCLC Number |
05866073 |
| Subjects |
Water quality--Measurement ;
Potassium ;
Electrodes, Ion selective ;
Seawater--Analysis--Instruments
|
| Additional Subjects |
Water analysis ;
Laboratory equipment ;
Potassium ;
Electrodes ;
Chemical analysis ;
Sampling ;
Water pollution ;
Performance evaluation ;
Monitoring ;
Potentiometry ;
Sea water ;
Fresh water ;
Sensors ;
Ion selective electrodes ;
Water quality ;
Water pollution detection
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600/7-79-057 |
c.1 |
Headquarters Library/Washington,DC |
06/25/2013 |
| EKCD |
EPA-600/7-79-057 |
|
CEMM/GEMMD Library/Gulf Breeze,FL |
08/21/2018 |
| ELBD ARCHIVE |
EPA 600/7-79-057 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 600-7-79-057 |
repository copy |
AWBERC Library/Cincinnati,OH |
05/08/2019 |
| ESAD |
EPA 600-7-79-057 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-299 266 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
51 pages : illustrations ; 27 cm. |
| Abstract |
Three types of potassium ion-selective electrodes were evaluated for suitability in monitoring or in-situ measurement applications. Each sensor was tested for the following parameters: accuracy, precision, temperature dependence, short and long-term stability, durability, sensitivity to variations in light intensity and flow conditions, response time as a function of temperature and potassium concentration, and variations between different manufacturers. The three potassium sensors (glass-membrane single electrode, glass-membrane combination electrode and liquid ion-exchange electrode) were evaluated at 10C and 25C in freshwater, synthetic seawater and natural seawater (35-, 20- and 5-ppt salinity). A description of the devices, the theory of their operation, and a summary of the test results are included. |
| Notes |
Interagency agreement no. D5-E693. Includes bibliographical references (pages 31-32). |
