scholarly journals Direct solid analysis for the determination of Mn, Ni, Rb and Sr in powdered stimulant plants using high-resolution continuum source atomic absorption spectrometry followed by chemometric classification based on elemental composition, polyphenol content and antioxidant activity

2016 ◽  
Vol 124 ◽  
pp. 283-289 ◽  
Author(s):  
Jefferson S. de Gois ◽  
Tarcísio S. Almeida ◽  
Rodolpho M. de Andrade ◽  
Isabela M. Toaldo ◽  
Marilde T. Bordignon-Luiz ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
High Resolution ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Absorption Spectrometry ◽  
Polyphenol Content ◽  
Continuum Source ◽  
Direct Solid Analysis ◽  
Direct Solid

scholarly journals MULTI-ELEMENT DETERMINATION OF CALCIUM, POTASSIUM AND MAGNESIUM IN MEDICINAL PLANT BY HIGH-RESOLUTION CONTINUUM SOURCE ATOMIC ABSORPTION SPECTROMETRY

2017 ◽  
Vol 37 (1) ◽  
pp. 45
Author(s):  
Tiago Varão Silva ◽  
Jardes Figuerêdo Rêgo ◽  
Mercedes De Moraes ◽  
Alberto José Cavalheiro ◽  
José Anchieta Gomes Neto ◽  
...  
Keyword(s):  
High Resolution ◽  
Medicinal Plants ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Absorption Spectrometry ◽  
Element Determination ◽  
Continuum Source ◽  
Flame Atomic Absorption ◽  
Secondary Line

A simple and rugged method to determine Ca, K and Mg in a single aliquot of medicinal plants by high-resolution continuum source flame atomic absorption spectrometry is proposed. Secondary lines for Ca (239.856 nm) and K (404.414 nm), and the alternate line measured at wing of the secondary line for Mg at 202.588 nm allowed calibration within the 20 – 500 mg L-1 Ca and K, and 1.0 – 80 mg L-1 Mg. Twenty samples and three plant certified materials were analyzed. Results were in agreement at a 95% confidence level with reference values. Limits of detection were 2.4 mg L-1 Ca, 1.9 mg L-1 K and 0.3 mg L-1 Mg. The RSD (n=12) were ≤ 5.1% and recoveries were between 83 and 108% for all analytes.

Understanding polyatomic interference in the determination of phosphorus via PO molecules using high-resolution continuum source graphite furnace molecular absorption spectrometry with direct solid analysis

2020 ◽  
Vol 35 (10) ◽  
pp. 2305-2314 ◽  
Author(s):  
Luiza Carolina Pomarolli ◽  
Márcia Andréia Mesquita Silva da Veiga ◽  
Martín Resano ◽  
Flávio Venâncio Nakadi
Keyword(s):  
High Resolution ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Molecular Absorption ◽  
Continuum Source ◽  
Molecular Absorption Spectrometry ◽  
Polyatomic Interference ◽  
Direct Solid Analysis ◽  
Direct Solid

Study of the occurrence of a molecular interference affecting the determination of phosphorus by the molecular absorption of PO at 213.647 nm using HR CS SS-GF MAS.

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