Analytical Instrumentation & Environmental Monitoring


Bioluminescent toxicity screening system

April 2000 Analytical Instrumentation & Environmental Monitoring

BioOrbit's BioTox bioluminescent toxicity screening system is based on Vibrio fischeri. It supplies all the hardware to begin screening water soluble samples such as factory effluent, plus fresh water, both ground and surface water, salt and brackish water, sewerage works and testing the toxicity of chemicals and biocides. If a toxic substance is present in the sample it will inhibit the natural light production from the test organism. The test is simple to perform, uses very small sample volumes, and results are available in less than 30 min. The system includes a highly sensitive, temperature controlled luminometer, software and cooling block. Toxicity testing with luminescent bacteria is performed according to DIN and ISO standards. Software is menu-driven for ease of use. It will automatically plot the inhibition curves, calculate EC 50 values and prepare reports. Each sample is loaded into the Sirius luminometer and the software does the rest. The BioTox kit provides the reagents for use with the toxicity screening system. The kit contains freeze dried Vibrio fischeri, the recommended test organism for luminescent screening in all international operating standards of industrial effluents and water soluble samples.



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