SIMPLE DETERMINATION OF NITRATE IN SOILS BY 2ND-DERIVATIVE SPECTROSCOPY

被引:77
作者
SEMPERE, A
OLIVER, J
RAMOS, C
机构
[1] Departamento de Ecología, Instituto Valenciano de Investigaciones Agrarias, Moncada, 46113, Apartado Oficial
来源
JOURNAL OF SOIL SCIENCE | 1993年 / 44卷 / 04期
关键词
D O I
10.1111/j.1365-2389.1993.tb02328.x
中图分类号
S15 [土壤学];
学科分类号
0903 ; 090301 ;
摘要
A new and simple method for nitrate analysis in soil extracts and soil solution is described. The method uses the second derivative of the direct ultra-violet (UV) spectrum, available from most microprocessor-controlled spectrophotometers with a UV source. Results with the proposed method were similar to those obtained by the cadmium-reduction column and ion-chromatographic methods. The main advantages of the proposed technique are that it is simple, rapid, accurate and requires no sample pre-treatment, making it useful for routine analysis of large numbers of samples.
引用
收藏
页码:633 / 639
页数:7
相关论文
共 21 条
  • [21] Young J. L., 1982, Nitrogen in agricultural soils, P43