Determination of Serum Copper by Atomic Absorption, with Use of the Graphite Cuvette

Abstract We have established and evaluated a flameless graphite cuvette method for copper in serum. This atomic absorption method provides substantial improvement in sensitivity, adequate accuracy, and acceptable precision, and little sample preparation is required before the analysis. Standard addition studies and measurements of National Bureau of Standards materials indicated that the proposed method is accurate, but that sample pH must be kept between 2 and 3 for high accuracy. Cations and anions that frequently are present in proteincontaining samples do not interfere significantly. Sample cross contamination in the syringe must be carefully avoided. Finally, when results for more than 100 patients' sera by this method were compared to those obtained by flame atomic absorption for the same samples, no substantial bias or inaccuracies could be attributed to this new micro-scale method for serum copper. Hence, this method is ideally suited for use on pediatric patients.

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

Jurnal Kimia VALENSI ◽

10.15408/jkv.v2i2.205 ◽

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.

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

Chimica Techno Acta ◽

10.15826/chimtech.2019.6.4.03 ◽

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.

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1120-1121.1395 ◽

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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