Systea S.p.A.

Analytical Technologies

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Easychem TOX on-line

As a result of years of intensive research and development activities, EASYCHEM TOX on-line is an original direct reading analyzer based on discrete analysis technology, for fully automated toxicity measurements of water samples using live cultures of luminescent bacteria.

EASYCHEM TOX on-line is a discrete automated platform equipped with color touchscreen LCD and housed in an industrial cabinet, comprising a refrigerated compartment, for bacteria, for reagents, calibrants and controls. A mechanical arm for aspiration, transferring and dispensing of reagents and samples and a thermostated reaction plate with 80 positions are incorporated with a luminometer, integrated with an automated cuvette washing station.

Easychem TOX on-line: acute toxicity automatic measurement with luminescent bacteria

In order to enable an extended time of use of rehydrated cultures by up to ten days, proprietary bioluminescent bacteria were selected, grown, stabilized and lyophilized according to standard methods. Thus, for the required period, the microorganisms preserve a measurable bioluminescence signal and an unaltered sensitivity to different types of reference compounds defined in ISO standards, such as zinc sulphate, potassium dichromate and 3,5-dichlorophenol. The system is programmed to manage several bacterial vials in succession, thus enabling an high frequency of measurement up to one month of unattended operation.

Fully automated for unattended toxicity monitoring

Timing and frequency of analytical cycles, limits and parameters of quality controls are programmable by the operator and managed automatically. The continuous measurement of blanks and samples at pre-defined time intervals of about 40 seconds, results in the generation of inhibition kinetics, which allow to achieve, from the very beginning of the analysis, preliminary information on the level of sample contamination.  Following a toxicity alert, the system is able to react immediately by automatically replicating samples and performing control checks to confirm identified toxicity, significantly reducing the occurrence of false positives. 
EASYCHEM TOX on-line provides local data storage via seriale RS-232 with separate analog outputs 4-20 mA, remote data storage on a web server and data transmission via ftp, http and SMS. An immediate alert service is available in case of detected noncompliances. Finally, the management software allows the integration of different instrumentation, thus realizing a truly integrated monitoring station, combining chemical and toxicological on-line control of water samples.

Features and benefits

  • Full automated early warning acute toxicity detection, according to ISO standard 
  • Fully automatic operation
  • Long autonomy; low maintenance, low operating cost
  • Very low reagents consumption; no preparation time; low disposable costs
  • Easy operation; plug in analyzer, no special training is required
  • Built-in data-logger for integration of different sensors, probes and analyzers.
Last modified on Friday, 06 May 2016 18:01