Flow through electrode with automated calibration
- Richland, WA
The present invention is an improved automated flow through electrode liquid monitoring system. The automated system has a sample inlet to a sample pump, a sample outlet from the sample pump to at least one flow through electrode with a waste port. At least one computer controls the sample pump and records data from the at least one flow through electrode for a liquid sample. The improvement relies upon (a) at least one source of a calibration sample connected to (b) an injection valve connected to said sample outlet and connected to said source, said injection valve further connected to said at least one flow through electrode, wherein said injection valve is controlled by said computer to select between said liquid sample or said calibration sample. Advantages include improved accuracy because of more frequent calibrations, no additional labor for calibration, no need to remove the flow through electrode(s), and minimal interruption of sampling.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC06-76RL01830
- Assignee:
- Battele Memorial Institute (Richland, WA)
- Patent Number(s):
- 6,438,501
- OSTI ID:
- 874677
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
electrode
automated
calibration
improved
liquid
monitoring
sample
inlet
pump
outlet
waste
computer
controls
records
data
improvement
relies
source
connected
injection
valve
controlled
select
advantages
accuracy
frequent
calibrations
additional
labor
remove
electrodes
minimal
interruption
sampling
computer control
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