Exploring the applicability of nano-selenium for capture of mercury vapor: Paper based sorbent and a chemical modifier in graphite furnace atomic absorption spectrometry

2019 ◽  
Vol 1085 ◽  
pp. 29-38 ◽  
Author(s):  
Tshering Zangmo ◽  
Atitaya Siripinyanond
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Mercury Vapor ◽  
Chemical Modifier ◽  
Graphite Furnace Atomic Absorption

scholarly journals EVALUASI PENGGUNAAN CHEMICAL MODIFIER PADA ANALISIS LOGAM DAN SEMI LOGAM DENGAN GRAPHITE FURNACE ATOMIC ABSORPTION SPECTROMETRY

2015 ◽  
Vol 17 (2) ◽  
pp. 163-173
Author(s):  
Rosi Ketrin
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Reference Method ◽  
Absorption Spectrometry ◽  
Chemical Modifier ◽  
Graphite Furnace Atomic Absorption ◽  
Gf Aas ◽  
Selection Of ◽  
Absorption Level

Graphite Furnace Atomic Absorption Spectrometry (GF-AAS) is not a new method in chemical analysis, especially for metals and metalloids, unfortunately there are a lot of laboratories in Indonesia that still not used it correctly, whereas if used it correctly, the method will be an excellent and can be a reference method. This review focus on the kinds of interferences in the GF-AAS such as spectral, physic and chemical interferences and alsoon the use of a lot of kinds of chemical modifier that very important part in analysis by GF-AAS, however it is often unused because of the difficulty. It is noted that highest absorption level from each analyte is different even though used the same modifier and ashing temperature, therefore the selection of chemical modifier is important to find the appropriate modifier for each analyte and their matrixes.Keyword: GF-AAS, spectral interferences, physic interferences, chemical interferences, chemical modifier

Tungsten Permanent Chemical Modifier for Fast Estimation of Se Contents in Soil by Graphite Furnace Atomic Absorption Spectrometry

2003 ◽  
Vol 51 (14) ◽  
pp. 3920-3923 ◽  
Author(s):  
Cassia Regina Rosa ◽  
Freschi ◽  
Mercedes de Moraes ◽  
José Anchieta Gomes Neto ◽  
Joaquim Araújo Nóbrega ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Chemical Modifier ◽  
Fast Estimation ◽  
Graphite Furnace Atomic Absorption

Sequence Determination of Cd and Pb in Honey by Incomplete Digestion-High Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry

2014 ◽  
Vol 511-512 ◽  
pp. 22-27 ◽  
Author(s):  
Hui Liu ◽  
Shang Long Chen ◽  
Chao Li ◽  
Tong Xiang Li ◽  
Yong Hua Wu ◽  
...  
Keyword(s):  
High Resolution ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Graphite Furnace ◽  
Absorption Spectrometry ◽  
Chemical Modifier ◽  
Sequence Determination ◽  
Continuum Source ◽  
Graphite Furnace Atomic Absorption

A fast and effective method was developed for sequence determination of Cd and Pb in honey by incomplete digestion-high resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GFAAS). Cd and Pb in some honey samples using incomplete digestion treatment were measured by HR-CS GFAAS. The factors influencing determination were investigated by single factor experimental design. The optimal determination conditions were found as follows: NH4H2PO4(10mg/mL) were added as a chemical modifier with the volume of 5μL; pyrolysis temperature 600°C(Cd) and 800°C(Pb); atomization temperature 1100°C(Cd) and 1400°C(Pb). Detection limits (3σ,n=12) were found to be 0.06 μg/L and 0.78 μg/L for Cd and Pb, respectively. The precisions (RSD) for 6 replicate measurements of Cd and Pb in honeys were 3.8% and 2.6%, respectively. Recoveries of added Cd and Pb were varied from 95% to 103%. Therefore, the proposed method was rapid, accurate and stable with a high practical value. It provided scientific basis for multi-element sequence determination in food.

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