scholarly journals Comparison of Partial Digestion Procedures for Determination of Ca, Cr, Cu, Fe, K, Mg, Mn, Na, P, and Zn in Milk by Inductively Coupled Plasma-Optical Emission Spectrometry

2004 ◽  
Vol 87 (1) ◽  
pp. 151-156 ◽  
Author(s):  
Carmen S Kira ◽  
Franca D Maio ◽  
Vera A Maihara
Keyword(s):  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Hot Plate ◽  
Inductively Coupled ◽  
Large Numbers ◽  
Partial Digestion ◽  
Fast Procedure

Abstract A fast procedure was developed for determination of Ca, Cr, Cu, Fe, K, Mg, Mn, Na, P, and Zn in milk samples. This procedure consisted of a partial digestion with hydrochloric acid on a hot plate. The results obtained were compared with 3 other digestion procedures (dry ashing and 2 microwave digestions). All the procedures showed similar precision levels, with coefficients of variation <10% for most analyzed elements. Accuracy was evaluated by using certified reference materials, and the values obtained were within the confidence intervals for these products. The results obtained were not considered statistically different. The partial digestion on a hot plate with HCl can be very practical for laboratories with relatively large numbers of sample analyses.

An on-line matrix separation and preconcentration procedure for ICP-OES determination of Cd, Co, Cu, Mn and Pb traces in Zr and Zr-Nb alloys using a cation-exchange resin microcolumn

2021 ◽  
Author(s):  
Masoud Aghahoseini ◽  
Gholamhassan Azimi ◽  
M. K. Amini
Keyword(s):  
Inductively Coupled Plasma ◽  
Cation Exchange Resin ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Separation And Preconcentration ◽  
On Line ◽  
Plasma Optical Emission Spectrometry

Determination of traces of Cd, Co, Cu, Mn and Pb elements in zirconium and its alloys by inductively coupled plasma optical emission spectrometry (ICP OES) suffers from severe spectral interferences...

Determination of Phosphorus and Potassium in Commercial Inorganic Fertilizers by Inductively Coupled Plasma-Optical Emission Spectrometry: Single-Laboratory Validation

2014 ◽  
Vol 97 (3) ◽  
pp. 687-699 ◽  
Author(s):  
James M Bartos ◽  
Barton L Boggs ◽  
J Harold Falls ◽  
Sanford A Siegel
Keyword(s):  
Inductively Coupled Plasma ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Ammonium Citrate ◽  
Emission Spectrometry ◽  
Icp Oes ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry ◽  
Single Laboratory

Abstract A two-part single-laboratory validation study was conducted for determination of the P and K content in commercial fertilizer materials by inductively coupled plasma-optical emission spectrometry (ICP- OES). While several methods exist for determination of P and K in fertilizer products, the main focus of this study was on ICP-OES determination, which offers several unique advantages. Fertilizer samples with consensus P and K values from the Magruder and Association of Fertilizer and Phosphate Chemists (AFPC) check sample programs were selected for this study. Validation materials ranging from 4.4 to 52.4% P2O5 (1.7 to 22.7% P) and 3 to 62% K2O (2.5 to 51.5% K) were utilized. Because all P and K compounds contained in fertilizer materials are not "available" for plants to use, this study was conducted in two parts. Part A focused on ammonium citrate–disodium EDTA as the extraction solvent, as it estimates the pool of fertilizer P and K that is considered available to plants. Part B focused on hydrochloric acid as the digestion solvent, as it estimates the total P and K content of the fertilizer product. Selectivity studies indicated that this method can have a high bias for fertilizer products containing sources of phosphite or organic P compared to gravimetric or colorimetric methods that measure just orthophosphate. Provided the analytical challenges outlined in this study are addressed, this method offers the potential for a quick, accurate, and safe alternative for determining the P and K content of commercial inorganic fertilizer materials.

Sign in / Sign up

Export Citation Format

Share Document