Calibration by the standard addition and indicative dilution method in flame atomic absorption spectrometry

2011 ◽  
Vol 26 (7) ◽  
pp. 1387 ◽  
Author(s):  
Paweł Kościelniak ◽  
Joanna Kozak ◽  
Marcin Wieczorek
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flame Atomic Absorption Spectrometry ◽  
Standard Addition ◽  
Absorption Spectrometry ◽  
Dilution Method ◽  
Flame Atomic Absorption

scholarly journals Combination of cloud point extraction and flame atomic absorption spectrometry for preconcentration and determination of trace iron in environmental and biological samples

2008 ◽  
Vol 6 (3) ◽  
pp. 488-496 ◽  
Author(s):  
Mehrorang Ghaedi ◽  
Ardeshir Shokrollahi ◽  
Raziyeh Mehrnoosh ◽  
Omid Hossaini ◽  
Mustafa Soylak
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Cloud Point ◽  
Flame Atomic Absorption Spectrometry ◽  
Cloud Point Extraction ◽  
Standard Addition ◽  
Absorption Spectrometry ◽  
Sample Volume ◽  
Flame Atomic Absorption ◽  
The Matrix

AbstractIn the presented work, the conditions for cloud point extraction of iron from aqueous solutions using 7-iodo-8-hydroxyquinolin-5-sulphonic acid (Ferron) was investigated and optimized. The procedure is based on the separation of its ferron complex into the micellar media by adding the surfactant Triton X-114. After phase separation, the surfactant-rich phase was dissolved with 1.0 M HNO3 in methanol. Iron was determined by flame atomic absorption spectrometry. Optimization of the pH, ligand and surfactant quantities, incubation time, temperature, viscosity, sample volume, and interfering ions were investigated. The effects of the matrix ions were also examined. The detection limits for three times the standard deviations of the blank for iron was 0.4 ng m L-1, enrichment factor of 19.6 and preconcentration factor of 30 could be achieved. The validity of cloud point extraction was checked by employing real samples including soil, blood, spinach, milk, meat, liver and orange juice samples using the standard addition method, which gave satisfactory results.In the presented work, the conditions for cloud point extraction of iron from aqueous solutions using 7-iodo-8-hydroxyquinolin-5-sulphonic acid (Ferron) was investigated and optimized. The procedure is based on the separation of its ferron complex into the micellar media by adding the surfactant Triton X-114. After phase separation, the surfactant-rich phase was dissolved with 1.0 M HNO3 in methanol. Iron was determined by flame atomic absorption spectrometry. Optimization of the pH, ligand and surfactant quantities, incubation time, temperature, viscosity, sample volume, and interfering ions were investigated. The effects of the matrix ions were also examined. The detection limits for three times the standard deviations of the blank for iron was 0.4 ng m L−1, enrichment factor of 19.6 and preconcentration factor of 30 could be achieved. The validity of cloud point extraction was checked by employing real samples including soil, blood, spinach, milk, meat, liver and orange juice samples using the standard addition method, which gave satisfactory results.

scholarly journals Determination of Iron (Fe) and Calcium (Ca) in NIST SRM 1566b (Oyster tissue) using Flame Atomic Absorption Spectrometry (F-AAS) by Standard Addition Method

2011 ◽  
Vol 2 (2) ◽  
Author(s):  
Fitri Dara ◽  
Y Susanto Ridwan
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flame Atomic Absorption Spectrometry ◽  
Inductively Couple Plasma ◽  
Standard Addition ◽  
Absorption Spectrometry ◽  
Oyster Tissue ◽  
Food Matrix ◽  
Flame Atomic Absorption

NIST Standard Reference Material (SRM 1566b) was employed for the determination of Iron (Fe) andCalcium (Ca) as nutrients in food matrix using Flame Atomic Absorption Spectrometry (F-AAS). Thecertified value of SRM 1566b for Fe and Ca are 205.8 ± 6.8 mg/kg and 0.0838 ± 0.0020 (%) or 838 ±20 mg/kg, respectively. This certified values are based on results obtained by single primary method(Isotope Dilution Inductively Couple Plasma Mass Spectrometry) at NIST with confirmation by othermethods at National Metrology Institute of P.R. China. This paper proposed a method fordetermination of Fe and Ca in food matrix as recommended by AOAC official with a littlemodification. The method was commenced from the destruction of all organic matter by dry oxidationbefore analysis by standard addition. Under optimum condition, the results of the determination of Feand Ca in SRM 1566b were agreed well with the certificate value. This method would be useful forroutine analysis in food testing laboratories.

scholarly journals Determination of Bi in complex oxide samples by atomic absorption spectrometry by using ordinary acetylene – air flame atomization

2019 ◽  
Vol 6 (4) ◽  
pp. 138-146
Author(s):  
Zoya A. Mikhaylovskaya ◽  
Elena S. Buyanova ◽  
Denis Yu. Smirnov
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flame Atomic Absorption Spectrometry ◽  
Calibration Curve ◽  
Standard Addition ◽  
Absorption Spectrometry ◽  
Flame Atomic Absorption ◽  
Curve Method ◽  
Standard Additions

In the present work the air/acetylene flame atomic absorption spectrometry was used for bismuth determination in complex oxides. Interference studies were carried out, and interference with vanadium and molybdenum was detected. The method of standard additions and traditional calibration curve method were used. Calibration and standard addition curves were fitted with linear and polynomial functions. It was shown that using polynomial function gives better results for the standard additions method for determination of bismuth by acetylene/air flame atomic absorption spectrometry. The calibration curve method was shown to be correct at low ( 10mg/L) concentration of an interferent.

Determination of Trace Copper in Vanadium Alloy by Flame Atomic Absorption Spectrometry

2015 ◽  
Vol 1120-1121 ◽  
pp. 1395-1398
Author(s):  
Qiang Yang ◽  
Guang Ping Tang ◽  
Lun Fu Tian ◽  
Qi Long Wei ◽  
Chao Wang
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Flame Atomic Absorption Spectrometry ◽  
Standard Addition ◽  
Absorption Spectrometry ◽  
Vanadium Alloy ◽  
Digestion Method ◽  
Matrix Interferences ◽  
Flame Atomic Absorption

The determination method for analyzing trace copper in vanadium alloy by flame atomic absorption spectrometry was investigated in the paper. The sample digestion method, digestion acidity, determination conditions, matrix interferences, method precision, recovery of standard addition were investigated in detail. The method precision in RSD% was 8.6%, and the average recoveries of standard addition were from 93.9% to 95.6%. The experimental results indicated that the proposed method for determination of trace copper in vanadium alloy was simple, fast, accurate, and easy to operate, which was suitable for quality control of vanadium alloy.

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