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Nitrate Nitrite Test Strips 50/Vial

SKU: 33817-NN

$19.95USD or lower Each

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Get fast, reliable color results for nitrate & nitrite in water, food, and biological systems in teaching laboratories, industry & environmental monitoring with Indigo® Nitrite-Nitrate test strips.

Nitrate and nitrite test strips provide a quick, semi-quantitative measure of reactive nitrogen species in a variety of samples. This includes drinking water, aquaculture systems, agricultural runoff, hydroponic nutrient solutions, and even food processing rinses. Each strip delivers clear colorimetric results within one minute, with an easy-to-read chart for concentrations between 0-50 mg/L (ppm) nitrite & 0-500 mg/L (ppm) nitrate. These strips require no reagents, meters, or glassware; simply dip, wait, & compare.

Details Specs Docs Reviews Related Products
Details
Discipline Learning Outcomes / Key Features
Environmental Science Understand nitrogen cycling and the sources of nitrate/nitrite pollution in natural and engineered systems.
Biology / Microbiology Demonstrate nitrification and denitrification by soil and aquatic microbes using real-time test data.
Chemistry / Analytical Science Compare test strip colorimetry with wet-chemical or spectrophotometric methods to discuss detection limits and accuracy.
Public Health / Safety Relate nitrate and nitrite levels to health guidelines (e.g., WHO, EPA) and discuss risks such as methemoglobinemia.

Tips for Best Results

  • Use clean, clear samples — cloudy or colored water can distort readings.
  • Dip for 1 second and read within 60 seconds under consistent lighting.
  • Avoid touching the test pads; handle from the top edge only.
  • Store strips tightly capped in a cool, dry place.
  • Record color results immediately for consistent comparisons.
Related information or images
Bioreactors Nitrate Nitrite Test Strips

Bioreactors

Aquarium Nitrate & Nitrite Test Strips

Aquariums & Aquaculture

Nitrate Test Strips for Agriculture & Hydroponics

Agriculture & Hydroponics

Teaching Nitrite Strips for Urinalysis

Clinical/Medical

Drinking Water Nitrite Nitrate Test Strips

Drinking Water

Soil Nitrate & Nitrite Test Strips

Soil Analysis

Mushroom Substrate Nitrogen 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.
Documentation

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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