A Safer and Less Costly Method for Nitrate Analysis
Safe, fast and low cost nitrate analysis is the cornerstone of a successful nutrient analysis program. We are aware that in North America, several methods have been widely adopted and approved by the EPA, including, cadmium, hydrazine, enzymatic and vanadium.
As a result of Systea's global reach, we are aware that the majority of nations have moved from cadmium to vanadium chloride as a safer, faster, less troublesome method for reducing nitrate.
In North America, more and more labs are now switching to this chemistry that has been validated and approved by the EPA.
If you are considering the advantages of nitrate reduction via vanadium as compared to using a cadmium coil or column, we are providing a 1:1 comparison below.
All of these statistics are backed by either our own internal analyses (we sell and support cadmium coils) or by independent studies. See below for references.
$0.01 per test
EPA Method Name: EasyChem Methodology: Nitrate by Discrete Analysis
Molecular Formula: VCl3
Molecular Weight: 157.3 g/mol
Hardware: Require no additional hardware
Maintenance: Requires no additional maintenance
Safety Warnings: Corrosive, Irritant
$0.15 per test
EPA Method Name: 353.3: Nitrate-Nitrite by Cadmium Reduction and Colorimetry
Molecular Formula: Cd
Molecular Weight: 112.41 g/mol
Hardware: Requires cadmium coil, additional pump, additional probe
Maintenance: Cadmium regeneration, pump and probe replacement
Safety Warnings: Flammable, Acute Toxic, Health Hazard, Environmental Hazard