FLOW-INJECTION SYSTEMS WITH A STREAM SPLITTING AND A DIALYSIS UNIT FOR THE SOIL ANALYSIS OF SODIUM AND POTASSIUM BY FLAME EMISSION-SPECTROMETRY, AND CALCIUM AND MAGNESIUM BY ATOMIC-ABSORPTION SPECTROPHOTOMETRY

被引：11

作者：

FERREIRA, AMR

RANGEL, AOSS

LIMA, JLFC

机构：

[1] UNIV CATOLICA PORTUGUESA, ESCOLA SUPER BIOTECNOL, P-4200 Porto, PORTUGAL

[2] FAC FARM PORTO, DEPT QUIM FIS, P-4000 Porto, PORTUGAL

来源：

COMMUNICATIONS IN SOIL SCIENCE AND PLANT ANALYSIS | 1995年 / 26卷 / 1-2期

关键词：

D O I：

10.1080/00103629509369289

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

Flow injection (FIA) systems for the determination (in the soluble and available form) of sodium and potassium by flame emission spectremetry, and calcium and magnesium by atomic absorption spectrometry in soils were developed. The necessary dilution, which in some cases could be as large as about 300 fold, was accomplished by including a stream splitting and a dialysis unit in the FIA manifolds. Good agreement was obtained between the results provided by the developed methodologies and by the reference procedures. Sampling rates from 60 to 150 samples per hour were achieved with relative standard deviations below 4%.

引用

页码：183 / 195

页数：13

共 7 条

[1] SIMULTANEOUS FLAME PHOTOMETRIC-DETERMINATION OF LITHIUM, SODIUM, POTASSIUM, AND CALCIUM BY FLOW-INJECTION ANALYSIS WITH GRADIENT SCANNING STANDARD ADDITION [J].