NITRATE ION ELECTRODE METHOD FOR SOIL NITRATE NITROGEN DETERMINATION

NOTES & UNIQUE PHENOMENA Using a Nitrate Specific Ion Electrode to Determine Stalk Nitrate-Nitrogen Concentration

The end-of-season stalk NO, test has been used to determine N sufficiency in corn (Zea mays L.). Nitrate concentration is commonly determined with flow-injection analysis (FIA), which is accurate but uses hazardous chemicals and is time-consuming. Use of a simpler method of NO, determination, such as the NO, specific ion electrode (SIE), may save time and costs, and reduce hazards. The objectiv...

Ion-Selective Electrode Offers Accurate, Inexpensive Method for Analyzing Soil Solution Nitrate in Remote Regions

Ion-Selective Electrode Offers Accurate, Inexpensive Method for Analyzing Soil Solution Nitrate in Remote Regions Katherine L. Tully & Ray Weil a Agriculture and Food Security Center, Earth Institute, Columbia University, New York, New York, USA b Department of Environmental Science and Technology, University of Maryland, College Park, Maryland, USA Accepted author version posted online: 13 May...

Determination of nitrogen oxides in ambient air using a coated-wire nitrate ion selective electrode.

A Palladium-Tin Modified Microband Electrode Array for Nitrate Determination

A microband electrode array modified with palladium-tin bimetallic composite has been developed for nitrate determination. The microband electrode array was fabricated by Micro Electro-Mechanical System (MEMS) technique. Palladium and tin were electrodeposited successively on the electrode, forming a double-layer structure. The effect of the Pd-Sn composite was investigated and its enhancement ...

In-ield measurement of soil nitrate using an ion-selective electrode

Standard laboratory methods for measurement of soil nitrate (NO3–N) use various procedures and instruments to analyze soil samples taken from the field and transported to the laboratory. Concerns with these procedures range from delays in measurement time, the high cost of soil sampling and analysis, high labour requirements, and the need to aggregate samples. With recent advances in using the ...