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Instrument Database:
Nippon Instruments Corporation - WA-4 Double-amalgamation atmospheric mercury measuring equipment
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| Year of introduction |
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| Status |
available |
| Company |
Nippon Instruments Corporation
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| Categories |
Dedicated Analyzer: Mercury
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Double-amalgamation atmospheric mercury measuring equipment
Atmospheric mercury has been historically measured by wet absorption and reducing-vaporization, but is now on its way to being replaced by gold amalgamation for reasons of sensitivity, accuracy, operability, collecting time, and the avoidance of other such problems. The model WA-4 is intended for re-heating the column collected by gold amalgamation and then measuring the mercury. This model incorporates systems that remove any interfering substances collected along with the mercury.
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| Specifications |
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Measuring method: Re-collecting by gold amalgamation, cold-vapor atomic absorption
Sample: Environmental air, various gases
Carrier gas: Dry cleaned air
Measuring range: 0.01 to 1,000 ng
Display: Mercury amount (ng) and concentration
Output: RS-232C
Power supply: 100±5 V AC, 0.34 kVA
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