This article throws light upon the top twenty-three instruments used for monitoring pollutants. Some of the instruments are: 1. Computerized Gas Chromatography or Digital Chromatography 2. Computerized Mass Spectrometry 3. Computerized N.M.R. Spectroscopy 4. Digital pH Meter and Digital Conductivity Meter 5. The Universal Polar Graphic Analyzer 6. Digital Dissolved Oxygen Analyser and Others. Instrument […]
Monitoring Pollutants: 23 Instruments (With Diagram)
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Nephelometry and Turbidimetry: Principle, Theory and Techniques
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After reading this article you will learn about:- 1. Subject Matter of Nephelometry and Turbidimetry 2. Principle and Theory of Nephelometry and Turbidimetry 3. Operating Conditions 4. Instrumentation 5. Experimental Techniques 6. Applications. Subject Matter of Nephelometry and Turbidimetry: Nephelometry and Turbidimetry are used for continuous monitoring of air and water pollution. In water, turbidity […]
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4. Short Notes on Non-Dispersive Infra-Red (NDIR) Analyzer
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This article provides short notes on Non-Dispersive Infra-Red (NDIR) Analyzer. NDIR analyzers have been developed to monitor SO2, NOx, CO and other gases that absorb in the infra-red, including CO2 and hydrocarbons. However it is probably true to say that this is the “preferred” technique only for CO monitoring of pollutants in ambient air. The […]