Product ID: NTK-S

Nitrate for Maximum Yield and Minimal Fertilizer Cost

Quick and Reliable Results, Easy to Use, Environmentally Benign

For high crop yield, enough Nitrate needs to be available in the soil, while over-application results in wasted fertilizer.  Make best use of manures in NMP compliance, practice good environmental stewardship to prevent groundwater nitrate runoff.  Use this kit for pre-sidedress soil nitrate testing for appropriate nutrient application.

This kit will detect 0 ppm - 50 ppm Nitrate-N (50 ppm Nitrate-N = 250 lb N/acre)

Choose from kits for nitrate analysis of 5, 10, 25, or 50 samples. Obtain results in less than one hour.  All you need is a pair of scissors, pen, and marker.  Kit includes everything you need to test and is easy to use, no lab training is required.  

Two Ways to Improve Your Nitrate Testing Experience

Use our New Handheld Photometer

Check out our new handheld photometer which displays and tracks nitrate and phosphate results digitally on Android mobile devices.  Obtain near lab-quality data without needing laboratory equipment or experience.  Our Introductory Photometer Package is complete with the photometer, instructions, and a 10-sample test kit pack of your choice.  Use your own Android mobile device, or add-on a control pad tablet for tracking, storage, and sharing of data.

Download the Free Nitrate Color Slider App

For a free interactive color-matching tool, use our free nitrate color slider app for easier visual analysis of colorimetric results.  Instead of using the color chart provided in the instructions, simply match the color on the screen with the color of each sample for more precise numerical values.  This app is available Online and in theGoogle Play store.

Product ID: NTK-WLR or NTK-WSR

Easy to Use, Quick and Reliable Results, Non-Toxic

Obtain near lab-quality results within 30 minutes

Non-toxic kit contents ensure safety for humans and the environment
No laboratory experience or materials needed

Available in Standard Range (0.5 ppm - 10.0 ppm Nitrate-N) and Low Range (0.1 ppm - 2.0 ppm Nitrate-N)*

• For drinking water, well water, agricultural runoff, and other types of water, choose the standard range test kit 
• For ambient, unimpaired environmental sources of water, choose the low range test kit

Available in kit sizes to measure nitrate content of 5, 10, 25, or 50 samples

*Nitrate is reported in different units depending on your field of use and where you live.

Use these colorimetric test kits to measure nitrate content in:

Well water, drinking water, agricultural water, pond water
Streams, lakes, rivers, oceans, wetlands, and other environmental watersheds
Wastewater, industrial manufacturing effluent, and more
Aquarium, Hydroponic, Aquaculture, Aquaponic water (please inquire if different range of nitrate detection is required other than what is offered)

Two Ways to Improve Your Nitrate Testing Experience

Use our New Handheld Photometer

Check out our new handheld photometer which displays and tracks nitrate and phosphate results digitally on Android mobile devices.  Obtain near lab-quality data without needing laboratory equipment or experience.  Our Introductory Photometer Package is complete with the photometer, instructions, and a 10-sample test kit pack of your choice.  Use your own Android mobile device, or add-on a control pad tablet for tracking, storage, and sharing of data.

Download the Free Nitrate Color Slider App

For a free interactive color-matching tool, use our free nitrate color slider app for easier visual analysis of colorimetric results.  Instead of using the color chart provided in the instructions, simply match the color on the screen with the color of each sample for more precise numerical values.  This app is available Online and in theGoogle Play store.

Product ID: NTK-MPLR or NTK-MPSR

Use this kit for quantification of nitrate in essentially any aqueous sample.  Reactions occur on a 96-well microplate provided with the kit.  This test kit is based on the enzyme Nitrate Reductase (NaR), catalyzing the reduction of nitrate to nitrite using the natural electron donor NADH.  The nitrite reacts with color reagents under acidic conditions to produce a visible color. The concentration of nitrate in the original sample is determined by measuring absorbance with a microplate reader using a 540 nm filter, versus nitrate concentration in nitrate standards.

Nitrate Reductase Based Microplate Test Kits are Available in different Ranges:

Choose either Freshwater or Saltwater Analysis