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建立了用DX-120型离子色谱法测定番茄中NO2-和NO3-含量的方法。方法测定的精密度和准确度高。此方法的建立对于快速准确地测定不同施肥方案番茄中N O2-和N O3-含量具有实际意义。
A method for the determination of NO2- and NO3- in tomato by DX-120 ion chromatography was established. The method determines the precision and accuracy. The establishment of this method has practical significance for the rapid and accurate determination of N O2- and N O3- in tomatoes with different fertilization programs.