Methodology for elemental analysis of a mineral fertilizer, some of its raw materials and limestone using microwave-induced plasma optical emission spectrometry (MIP OES)

2020 ◽  
Vol 12 (20) ◽  
pp. 2638-2644 ◽  
Author(s):  
Alexandre Müller ◽  
Dirce Pozebon ◽  
Anderson Schwingel Ribeiro
Keyword(s):  
Raw Materials ◽  
Mineral Fertilizer ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Spectral Lines ◽  
Emission Spectrometry ◽  
Microwave Induced Plasma ◽  
Plasma Optical Emission Spectrometry ◽  
Mip Oes

Microwave-induced plasma optical emission spectrometry (MIP OES) allowed the determination of 19 elements in a complex sample matrix. Spectral lines and sample preparation procedures were investigated.

Advances of nitrogen microwave plasma for optical emission spectrometry and applications in elemental analysis: a review

2020 ◽  
Vol 35 (10) ◽  
pp. 2113-2131 ◽  
Author(s):  
Alexandre Müller ◽  
Dirce Pozebon ◽  
Valderi L. Dressler
Keyword(s):  
Elemental Analysis ◽  
Microwave Plasma ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Microwave Induced Plasma ◽  
Plasma Optical Emission Spectrometry ◽  
Mip Oes

The N2-sustained microwave-induced plasma optical emission spectrometry (N2-MIP OES) has been increasingly applied for metals and non-metals determination in different fields.

Microwave-Induced Plasma Optical Emission Spectrometry (MIP OES) and Standard Dilution Analysis to Determine Trace Elements in Pharmaceutical Samples

2017 ◽  
Vol 71 (12) ◽  
pp. 2692-2698 ◽  
Author(s):  
Amanda G. Althoff ◽  
Charles B. Williams ◽  
Tina McSweeney ◽  
Daniel A. Gonçalves ◽  
George L. Donati
Keyword(s):  
Internal Standard ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Eye Drops ◽  
Time Resolved ◽  
Microwave Induced Plasma ◽  
Calibration Methods ◽  
Plasma Optical Emission Spectrometry ◽  
Mip Oes

In this work, we evaluate the application of microwave-induced plasma optical emission spectrometry (MIP OES) to determine of Al, Cr, Co, Cu, Fe, Mn, Ni and Zn in children’s cough syrup, eye drops, and oral antiseptic using standard dilution analysis (SDA). The SDA method is simple, with only two calibration solutions prepared per sample. The first solution (S1), composed of 50% sample +50% of a standard solution, is introduced into the plasma and the analytical signals are monitored in a time-resolved fashion. Then, the second solution (S2), composed of 50% sample +50% blank, is poured into the vial containing S1. As the solutions mix, the analytical signals gradually drop to a stable baseline. The calibration curve is computed by plotting the ratio of the analyte signal (SA) over the internal standard signal (which is also part of S1) (SIS) on the y-axis, versus the inverse of the IS concentration on the x-axis (i.e., SA/SIS versus 1/CIS). In this study, SDA results were compared with values obtained with the traditional methods of external calibration (EC), internal standardization (IS), and standard additions (SA) in MIP OES determinations. The precision (represented as percent RSD) for SDA showed values in the range of 2.50–8.00% for all samples, while conventional calibration methods showed RSDs in the range of 6.40–32.50% for EC, 8.30–21.80% for IS, and 5.20–17.40% for SA. The LODs calculated for SDA are below the maximum limits allowed by the major pharmaceutical regulatory agencies, and presents superior precision and accuracy compared to the traditional calibration methods. Considering its simplicity and efficiency, SDA is an important new tool for accurate analyses of pharmaceuticals.

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