TY - JOUR
T1 - 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
AU - Ferreira, Alexandra M. R.
AU - Rangel, António O. S. S.
AU - Lima, José L. F. C.
PY - 1995/1/1
Y1 - 1995/1/1
N2 - Flow injection (FIA) systems for the determination (in the soluble and available form) of sodium and potassium by flame emission spectrometry, 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%.
AB - Flow injection (FIA) systems for the determination (in the soluble and available form) of sodium and potassium by flame emission spectrometry, 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%.
UR - http://www.scopus.com/inward/record.url?scp=0028973562&partnerID=8YFLogxK
U2 - 10.1080/00103629509369289
DO - 10.1080/00103629509369289
M3 - Article
AN - SCOPUS:0028973562
SN - 0010-3624
VL - 26
SP - 183
EP - 195
JO - Communications in Soil Science and Plant Analysis
JF - Communications in Soil Science and Plant Analysis
IS - 1-2
ER -