在线氰化物监测仪
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CYANIDE
Cyanide is used in industrial applications ranging from organic synthesis in a chemical plant to precious metal plating. Due to high toxicity, HCN is also a priority pollutant which must be measured on-line to meet federal and state permitted release levels.
A typical application in an HCN production plant would be the measurement of cyanide in effluent waters before chlorination in a cyanide destruction process, and another application would be monitoring low levels of cyanide in waste recovery just prior to final effluent release. In both applications the objectives are:
TYTRONICS'® SENTINEL
Tytronics’ Sentinel is an on-line colorimetric analyzer. The instrument uses a batch sampling technique that allows the use of 0.25" tubing for sample lines, so small amounts of solids will not affect instrument performance. Other advantages of batch sampling are:
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analytical results are not affected by sample and reagent flows;
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analyses are only performed as frequently as required, minimizing reagent consumption.
METHOD
This colorimetric analysis uses 2 ml each of reagent 1, reagent 2 and reagent 3.
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Method:
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Colorimetric
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Measurement range:
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0-100 ppb
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Sample size:
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30 ml
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Reagent 1:
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phosphate buffer/ chloramine T
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Reagent 2:
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4-picoline, sodium hydroxide/EDTA
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Reagent 3:
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potassium carbonate/ methanol/3-methyl-1-phenyl-2-pyrazoline-5-one
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Volume/analysis each reagent
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2 ml
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Measurement Wavelength
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630 nm
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Reference Wavelength
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810 nm
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Analysis Time
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15minutes
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Enhanced Features of Tytronics’ Sentinel:
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Programmable from 1 to 10 methods for a single analysis compound;
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Up to 3 different calibration methods;
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Eight relay outputs, multi-programmable on each relay;
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Alarm functions, including sample flow, reagent level detection;
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From 1 to 6 stream configurations standard.