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Modern Water

Microtox® FX Portable Toxicity Luminometer

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Portable toxicity and bio-contaminant detection

Microtox® FX is a simple, rapid, extremely responsive, portable water quality test system. Designed for acute toxicity screening and adenosine triphosphate (ATP) testing, Microtox® FX uses bioluminescence technology to screen for contamination in instances of drinking water emergencies and chemical spills into water systems. Microtox® FX is the portable toxicity analyser used with the Microtox® technology.

The Microtox® FX instrument has a combined detection capability that provides a very sensitive and rapid test to detect two of the most probable classes of agents; pathogens and toxic chemicals, that may accidently or intentionally contaminate drinking water or wastewater. Microtox® FX’s acute toxicity and ATP detection capabilities make it the ideal instrument for rapidly and accurately assessing if the quality of drinking water, from the source to the tap, has been affected by an incident.

  • Biological early warning system sensitive to more than 2,700 simple and complex chemicals
  • Fast - Reliable results available in 5 minutes after initial sample preparation
  • Test results highly correlated with other widely accepted toxicity test methods
  • Excellent correlation with HPC test methods
  • Fully portable - lightweight with sturdy field carrying case
  • Battery life of up to 8 - 10 hours with typical use
  • Compatible with widely available ATP test kits
  • Manufactured in a certified ISO 13485 quality system with 100% lot traceability

Microtox® FX is designed for use in any sample location throughout the water distribution or industrial waste water system. It is particularly suited to remote sites such as reservoirs, storage tanks, ocean or lake going vessels or in any hard to reach place.

Chemical contamination of drinking water and wastewater

Microtox® FX is the portable version of the industry-leading Microtox® Model 500 (M500) laboratory analyser. The Microtox® FX test is fast, simple to conduct, uses small sample sizes and is very cost effective. Results correlate well with those from other toxicity bioassays such as fish, daphnia and shrimp. Microtox® FX is used extensively in the measurement of toxicity of “fit for use” water and wastewater treatment effluent. It is also used as an early screening tool for relative toxicity as part of a test battery.

Microtox® FX test systems are uniquely suited for drinking water surveillance where supplies are monitored regularly and at strategic points. It can quickly reveal any changes in the level of toxicity of drinking water making it the ideal solution for major events. Microtox® has been deployed during the Summer Olympics beginning in 1984.

In industrial and municipal wastewater, Microtox® FX helps assure compliance with NPDES toxicity limits, measures toxicity in influent streams and determines treatment efficiency.

Microbial contamination of drinking water

Microtox® FX can rapidly estimate the microbial concentration of a drinking water sample to a level of 100 cfu/mL without additional filtration or incubation steps. The data is available in minutes and is highly correlated with standard heterotrophic plate count methods.

Microtox® FX is extremely responsive and has been designed for use in a wide variety of applications where it is crucial to rapidly determine the biomass of a sample.

Size20cm x 18cm x 10cm (8” x 7” x 4”)
Weight1 kg (2.2 lbs)
PowerSelf-contained Lithium ion battery or a universal power adapter (15 V dc @ 4 amps)
Instrument Operational Temp0°C - 40°C
Reagent Operational Temp10°C - 28°C
Dynamic Test Range1 to 60 million counts (approx.)
ApprovalsCE (European Community)
Display OutputBacklight LCD – 8 lines x 20 characters
Data I/OStandard serial USB for data transfer and firmware updates
Data Storage6.5k byte storage area (approx. 600 reads)
Data HandlingStand alone or download capability to PC; built in software prompts operational steps, records light measurements and automatically calculates results for immediate review and further analysis
Test ReagentFreeze-dried luminescent bacteria (Vibrio fischeri)
Toxicity Reagent Storage

Freeze-dried -15°C to -25°C
Rehydrated 2 hours (ambient temperature)

ATP Reagent StorageRefrigerate
Test ModesToxicity (Q-Tox and B-Tox) and ATP measurement
Test Durations1-60 minute exposure
Test Measurement CriterionLight output by test reagent measured after timed exposure to a sample
Results DisplayPercentage light loss or gain for toxicity test; or light unit (photon) count (for ATP measurements)
Repeatability (Precision)<20% coefficient of variation for B-Tox and Q-Tox mode testing
Sensitivity and RangeThe analyser can detect photon counts from 0 to 60 million
ISO AccreditationISO 13485 FM 583842

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