| Abstract: | ![]()
A rapid and sensitive determination method for soil nitrate status is proposed using anion exchange high pressure liquid chromatography. The effect of different extracting solutions and elution-buffer pH is investigated on the determination of NO2 and NO3 in standard solutions and various soil extracts in the concentration range of 0–40 ppm. A high lineair correlation is obtained between results from both the Bremner distillation method (1965) and this anion exchange HPLC-method when compared on 69 soil samples. The sensitivity, reliability and ease of handling make anion exchange HPLC a valuable method for the determination of soil nitrate. |
