Elemental Analysis Using Atomic Absorption Spectroscopy

2021 ◽  
Vol 6 (7) ◽  
pp. 48-51
Author(s):  
Abdul Moiz Mohammed

The resonance radiation study is a powerful means in obtaining valuable information concerning the behavior of individual atoms and molecules. Various quantitative techniques are available in order to determine the amount of analyte and analysis of trace elements in the sample. Some technique uses the principle, when the number of atoms in the path of light increases, the amount of light absorption increases. While other techniques use dissociation of chemical compound free atoms by supplying enough thermal energy. In this paper, an attempt is made to compare various analytical methods with their merits and demerits and the reasons for popularity of atomic absorption spectroscopy among researchers. Elemental analysis using atomic absorption spectroscopy of various elements that are found in nature particularly in foods and environment is also presented.

2021 ◽  
Author(s):  
Sameen Nawaz ◽  
Faiza Asghar ◽  
Jahangeer Patujo ◽  
Saira Fatima ◽  
Babar Murtaza ◽  
...  

Three new ferrocene-substituted aliphatic guanidines were successfully synthesized and well characterized by means of several analytical methods such as: FT-IR, 1H & 13C-NMR, Raman, atomic absorption spectroscopy (AAS), and elemental...


Author(s):  
Viorina Gorinchoy ◽  
Olesea Cuzan ◽  
Silvia Melnic ◽  
Oleg Petuhov ◽  
Sergiu Shova

Two new μ3-oxo trinuclear heterometallic Fe2IIICrIII complexes with furan-2-carboxylic and salicylic acids with the composition: [Fe2CrO(C4H3OCOO)6(CH3OH)3]NO3·0.5CH3OH and [Fe2CrO(C6H4(OH)COO)7(CH3OH)2]·2DMA were synthesized starting from iron(III) and chromium(III) salts mixture. The complexes structures were confirmed by elemental analysis, IR, Mössbauer spectroscopies, and X-ray analysis. The atomic absorption spectroscopy confirmed that the iron: chromium ratio is 2:1. The thermal properties of both heteronuclear complexes have been investigated in oxidizing and inert atmospheres revealing the stability of the trinuclear core up to 170 and 220°C, respectively.


2012 ◽  
Vol 2 (4) ◽  
pp. 47-50 ◽  
Author(s):  
Faizul Haq ◽  
Shamsur Rehman ◽  
Habib Ahmad ◽  
Zafar Iqbal ◽  
Rahat Ullah

Rangifer ◽  
2002 ◽  
Vol 22 (1) ◽  
pp. 67 ◽  
Author(s):  
Aksel Bernhoft ◽  
Thor Waaler ◽  
Svein D. Mathiesen ◽  
Arne Flåøyen

Reindeer (Rangifer tarandus tarandus) grazing the Rybatsjij Ostrov peninsula, north western Russia, northeast of the industrial towns of Nikel and Zapoljarnij, were analysed for hepatic concentrations of trace elements [arsenic (As), cadmium (Cd), chromium (Cr), cobalt (Co), copper (Cu), lead (Pb), mercury (Hg), nickel (Ni), selenium (Se), and zinc (Zn)] by atomic absorption spectroscopy. The median (range) concentrations (jig/g wet weight) deter¬mined in liver samples from 40 reindeer with even sex ratio and representation from different age classes were As 0.035 (0.017-0.048), Cd 0.34 (0.15-1.2), Cr 0.008 (<0.002-0.022), Co 0.09 (0.06-0.12), Cu 98 (29-220), Pb 0.56 (0.23-1.0), Hg 0.16 (0.08-0.31), Ni 0.027 (<0.020-0.13), Se 0.88 (0.56-1.3) and Zn 37 (24-105). The concentrations of Cd increased and Ni decreased with age. The measured liver concentrations were below levels of toxicological sig¬nificance to the animals. It can be inferred that there is no risk with the measured trace elements to human health associated with the consumption of meat from these reindeer.


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