Method development for the determination of fluorine in toothpaste via molecular absorption of aluminum mono fluoride using a high-resolution continuum source nitrous oxide/acetylene flame atomic absorption spectrophotometer

Talanta ◽  
2012 ◽  
Vol 94 ◽  
pp. 246-250 ◽  
Author(s):  
Nil Ozbek ◽  
Suleyman Akman
Keyword(s):  
Nitrous Oxide ◽  
High Resolution ◽  
Atomic Absorption ◽  
Method Development ◽  
Atomic Absorption Spectrophotometer ◽  
Molecular Absorption ◽  
Continuum Source ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer

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.

Determination of Calcium in Leisure Foods by Incomplete Digestion-Microemulsion Sampling-High Resolution Continuum Source Flame Atomic Absorption Spectrometry

2014 ◽  
Vol 1010-1012 ◽  
pp. 417-421
Author(s):  
Chao Li ◽  
Shang Long Chen
Keyword(s):  
High Resolution ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flame Atomic Absorption Spectrometry ◽  
Comparative Method ◽  
Absorption Spectrometry ◽  
Continuum Source ◽  
Flame Atomic Absorption ◽  
Significant Difference

The aim of this work was to evaluate the microemulsification after incomplete digestion as sample preparation procedure for determination of Ca in leisure foods by high resolution continuum source flame atomic absorption spectrometry (HR-CS FAAS). Microemulsions were prepared with digestive liquor and n-butyl alcohol as an auxiliary emulsifier after incomplete digestion treatment. The appropriate fuel flow, 70 L/h, and the optimum burner height, 5 mm, were obtained by single factor experimental design. The results showed that the correlation coefficient was better than 0.999, the characteristic concentration was 0.086 mg/L, the precision (RSD) for 6 replicate measurements of Ca was 1.7% and the average of recoveries was 102.1%. F-test and t-test (95% confidence level) in between the proposed method and the comparative method, using microwave digestion-HR-CS FAAS, had no significant difference. Therefore, the proposed method was accurate and stable with a high practical value. It provided scientific basis for determination of metal elements in food.

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