Multiple mode semiconductor diode laser as a spectral line source for graphite furnace atomic absorption spectroscopy

1990 ◽  
Vol 62 (17) ◽  
pp. 1893-1895 ◽  
Author(s):  
Kin C. Ng ◽  
Abdalla H. Ali ◽  
Tye E. Barber ◽  
James D. Winefordner
Keyword(s):  
Spectral Line ◽  
Atomic Absorption ◽  
Diode Laser ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Line Source ◽  
Graphite Furnace ◽  
Semiconductor Diode ◽  
Semiconductor Diode Laser ◽  
Graphite Furnace Atomic Absorption

scholarly journals Trace and Essential Elements Analysis inCymbopogon citratus(DC.) Stapf Samples by Graphite Furnace-Atomic Absorption Spectroscopy and Its Health Concern

2014 ◽  
Vol 2014 ◽  
pp. 1-5 ◽  
Author(s):  
Jasha Momo H. Anal
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Graphite Furnace ◽  
Essential Elements ◽  
Health Concern ◽  
Permissible Limits ◽  
Daily Diet ◽  
Graphite Furnace Atomic Absorption ◽  
Gf Aas

Cymbopogon citratus(DC.) Stapf commonly known as lemon grass is used extensively as green tea and even as herbal tea ingredient across the world. Plants have the ability to uptake metals as nutrient from the soil and its environment which are so essential for their physiological and biochemical growth. Concentrations of these twelve trace elements, namely, Mg, Ca, Cr, Mn, Fe, Ni, Cu, Zn, Mo, As, Cd, and Pb, are analysed by graphite furnace-atomic absorption spectroscopy (GF-AAS) and are compared with the permissible limits of FAO/WHO, ICMR, and NIH, USA, which are found to be within permissible limits. Toxic metals like As, Cd, and Pb, analysed are within the tolerable daily diet limit and at low concentration.

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