Bioreactors Nitrate Nitrite Test Strips

SKU: 33817-NN

$20.49USD or lower Each

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Indigo® low-cost nitrate & nitrite test strips provide quick qualitative nitrogen measurements for wastewater plants, bioreactors & teaching labs & can help track nitrification & denitrification trends.

Nitrate and nitrite monitoring plays a central role in managing biological processes in bioreactors, including nitrification, denitrification, and anaerobic digestion. Indigo® Nitrate-Nitrite Test Strips provide a fast, practical method for observing nitrogen trends during startup, process adjustments, and routine operation. In wastewater and biological treatment systems, rapid identification of nitrite accumulation or nitrate breakthrough helps operators diagnose microbial imbalance before performance or compliance is affected.

We've been selling nitrate-nitrite test strips since 2009. Buy fully documented Indigo® nitrate-nitrite test strips, 50 strips/vial. Guaranteed 3 year shelf life (dated back from expiration date "yyyy.mm.dd").
Details Specs Docs Reviews
Details
Discipline Learning Outcomes / Key Features
Environmental Engineering Demonstrate nitrate/nitrite control in wastewater treatment; show impact on effluent quality and compliance.
Microbiology Illustrate microbial pathways of nitrification and denitrification; connect results to bacterial metabolism.
Chemistry Introduce redox transformations of nitrogen species; practice semi-quantitative testing in applied settings.
Bioprocess Engineering Link nutrient monitoring to bioreactor performance; compare strip results to instrumentation for process validation.
Teaching & Training Provide accessible, hands-on demonstrations of nitrogen cycle dynamics in environmental and industrial contexts.

Tips for Best Results

  • Collect bioreactor samples in clean containers to avoid cross-contamination.
  • Allow suspended solids to settle or filter samples to prevent interference with color changes.
  • Test promptly, as nitrite in particular can oxidize or reduce depending on microbial activity.
  • Compare strip results with reference lab methods if quantitative accuracy is required for compliance.
  • Use strips regularly to track trends rather than single-point data.
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Specifications

This Indigo® test strip indicates the presence of nitrate & nitrite. Results for ranges shown below can be read in 30 seconds.

  • Nitrate is measured in increments of 10, 25, 50, 100, 250, & 500ppm
  • Nitrite is measured in increments of 1, 5, 10, & 25ppm
  • The number of strips (50) vial is approximate.
  • These strips have a guaranteed shelf of 3 years from date of manufacture (indicated by expiration date).
  • These strips are extremely sensitive to airborne humidity.
  • Reseal the desiccant lined bottle immediately after removing a strip to ensure 3 year shelf life.
  • Vial must be kept tightly sealed & kept at typical room temperatures.
Documentation

A Certificate of Conformance is available on request after shipment.
Indigo® pH test strips are made in USA & calibrated with NIST standards.

Test Strip Documentation
Stability Statement Certificate of Analysis SDS
Indigo Nitrite Test Strips 25ppm Nitrate 500ppm Stability Statement Indigo Nitrite Test Strips 25ppm Nitrate 500ppm Certificate of Analysis Indigo Nitrite Test Strips 25ppm Nitrate 500ppm SDS
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