Nitrogen Cycle Lab Ammonia Testing Strips

SKU: 33817-AMM

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Demonstrate the nitrogen cycle with Indigo® 0-100 ppm ammonia test strips. Visualize ammonium oxidation to nitrate in classroom or lab experiments.

Indigo® Instruments ammonia test strips (0–100 ppm) provide a fast, safe, and visually engaging way to demonstrate the nitrogen cycle in classrooms and university labs. Students can observe the transformation of ammonia to nitrite and nitrate, key biochemical steps that connect chemistry, biology, and environmental science. The simple color-change format eliminates liquid reagents and glassware, making it ideal for hands-on learning or outreach events.

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Details

Learning Outcomes by Discipline

Discipline Learning Outcomes / Key Features
Chemistry Illustrate oxidation of ammonia to nitrate as a redox process and connect chemical reactions to environmental cycles.
Biology Demonstrate the role of nitrifying bacteria in nutrient cycling and ecosystem balance.
Environmental Science Model eutrophication and water-quality impacts from excess nitrogen compounds.
Education / STEM Outreach Design inquiry-based experiments aligning with sustainability and pollution-prevention themes.

Best Practices

  • Prepare simulated environments: aquarium water, compost leachate, or soil slurry.
  • Measure ammonia at time 0, 24 h, and 72 h to observe decreasing concentration.
  • Pair with nitrite and nitrate test strips to complete the nitrogen-cycle sequence.
  • Encourage students to plot results and interpret biological rate trends.
  • Dispose of samples responsibly to model good environmental practice.

If you are looking to test for leaking ammonia refrigerant gas, click on phenolphthalein ammonia gas indicator test papers. Or, if you need a supersenstive detector for gloveboxes, click on ammonia leak detector cloth. For general information on ammonia, click on: Ammonia-Refrigerant, Leak Detector & Disinfectant.

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Specifications
  • The number of strips (25) per vial is approximate.
  • Shelf life is a guaranteed minimum 3 years but vial is lined with a desiccant and if properly sealed, strips can last 5 years or more.
  • Made in USA with NIST calibration standards
Documentation

Test Strip Documentation
Stability Statement Certificate of Analysis SDS
Indigo Ammonia Test Strips 0-100ppm Stability Statement Indigo Ammonia Test Strips 0-100ppm Certificate of Analysis Indigo Ammonia Test Strips 0-100ppm SDS
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