The direct determination of phosphorus in citric acid soil extracts by colorimetry and direct-current plasma emission spectroscopy

1995 ◽  
Vol 12 (4) ◽  
pp. 152-157 ◽  
Author(s):  
G. R. Thompson
Keyword(s):  
Citric Acid ◽  
Direct Current ◽  
Emission Spectroscopy ◽  
Acid Soil ◽  
Direct Determination ◽  
Plasma Emission ◽  
Soil Extracts ◽  
Direct Current Plasma ◽  
Plasma Emission Spectroscopy

Determination of Magnesium, Iron, and Zinc in Fertilizers by Flame Atomic Absorption and by Inductively Coupled Plasma Emission Spectroscopy: Comparison of Methods

1983 ◽  
Vol 66 (3) ◽  
pp. 766-768
Author(s):  
Carl F Aten ◽  
John B Bourke ◽  
John C Walton
Keyword(s):  
Atomic Absorption ◽  
Inductively Coupled Plasma ◽  
Emission Spectroscopy ◽  
Matrix Effects ◽  
Plasma Emission ◽  
Inductively Coupled ◽  
Flame Atomic Absorption ◽  
Iron And Zinc ◽  
Plasma Emission Spectroscopy

Abstract Determination of Mg, re, and Zn by inductively coupled plasma emission spectroscopy (ICP) and by the official flame atomic absorption spectrophotometric (FAA) method were compared. Samples were acid digests of commercial fertilizers. Neither matrix effects nor spectral interferences were encountered in the ICP analyses. Linear regression shows that the slopes obtained by plotting ICP results vs FAA results for each element differ from unity by less than 5%.

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