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Zhao Huaqing. DESIGN AND CONTROL OF A CONTINUOUS-FLOW SYSTEM IN ECOTOXICOLOGICAL TEST[J]. ACTA HYDROBIOLOGICA SINICA, 1997, 21(4): 322-326.
Citation: Zhao Huaqing. DESIGN AND CONTROL OF A CONTINUOUS-FLOW SYSTEM IN ECOTOXICOLOGICAL TEST[J]. ACTA HYDROBIOLOGICA SINICA, 1997, 21(4): 322-326.
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DESIGN AND CONTROL OF A CONTINUOUS-FLOW SYSTEM IN ECOTOXICOLOGICAL TEST

  • Shanghai Academy of Environmental Sciences, 200233

  • Received Date: May 28, 1995
  • Rev Recd Date: April 16, 1997
  • Published Date: October 24, 1997
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    • Abstract
  • Fluctuations of toxicant concentions in long-term continuous-flow tests are mainly due to malfunction of the toxicant delivery system. Toxican analysis are essential in improving data quality. To reduce toxicant fluctuations, a serial diluter was modified and Masterflex metering pumps which delivered toxicant solution and dilution water were used. The continuous-flow test system with RTMS Which included Masterflex pump, pour-through cell installation, spectrometer and recorder ensured a high accuracy. In a 56-day test, The RTMS provided real-time information on the diluter. The variahon coefficients of toxicant concentration ranged from 2.16% to 6.13%. The successful operation of the system provided technical ensurance for intermediate-term and long-term ecotoxicological test.
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