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 in bioreactors is critical for managing microbial processes such as nitrification, denitrification, and anaerobic digestion. In wastewater treatment, excess nitrite accumulation can be toxic, while balanced nitrogen cycling improves system efficiency and environmental compliance.
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.
Related information or images
Nitrate Nitrite Test Strips 50/Vial
Aquariums & Aquaculture
Agriculture & Hydroponics
Clinical/Medical
Drinking Water
Soil Analysis
Mushrooms
Specifications
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) per vial is approximate.
These strips are extremely sensitive to airborne humidity. Reseal the desiccant lined bottle immediately after removing a strip to ensure 3 year shelf life.
