scholarly journals Development of Cr(III) analytical method in dairy products by cloud point extraction using graphite furnace atomic absorption spectroscopy

2020 ◽  
Author(s):  
S. A. Hutapea ◽  
A. Saefumillah ◽  
E. W. Asijati
Keyword(s):  
Atomic Absorption ◽  
Cloud Point ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Analytical Method ◽  
Dairy Products ◽  
Cloud Point Extraction ◽  
Graphite Furnace ◽  
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.

Samples of Kidney Failure Patients by Cloud Point Extraction and Electrothermal Atomic Absorption Spectroscopy

2012 ◽  
Vol 95 (6) ◽  
pp. 1755-1760 ◽  
Author(s):  
Jameel A Baig ◽  
Tasneem G Kazi ◽  
Mohammad Balal Arain ◽  
Hassan Imran Afridi ◽  
Khalida Perveen Mahar
Keyword(s):  
Atomic Absorption ◽  
Cloud Point ◽  
Absorption Spectroscopy ◽  
Kidney Failure ◽  
Atomic Absorption Spectroscopy ◽  
Cloud Point Extraction ◽  
Scalp Hair ◽  
Complexing Agent ◽  
Hair Samples ◽  
Dialysate Solution

Abstract A method has been developed for the determination of arsenic (As) in pharmaceutical and scalp hair samples of kidney failure patients by cloud point extraction (CPE). The scalp hair samples were subjected to microwave-assisted digestion in nitric acid–hydrogen peroxide (2 + 1, v/v). Then, dialysate and digested scalp hair solutions were preconcentrated by CPE using pyronine B as a complexing agent. The resulting complex was entrapped in nonionic surfactant (Triton X-114) prior to its determination by electrothermal atomic absorption spectroscopy. The validity of the CPE method for As was checked by analysis of a certified reference material of human hair and a standard addition method for dialysate solution. The chemical variables affecting the analytical performance of the CPE methods were studied and optimized. After optimization of the complexation and extraction conditions, a preconcentration factor of 52 was obtained for As in 10 mL of dialysate solution and acid digested samples of scalp hair. Under the optimum experimental conditions, the LOD and LOQ of As for the preconcentration of 10 mL of solution were 0.022 and 0.073 μg/L, respectively. The level of As in scalp hair samples of kidney failure patients was higher than in healthy controls.

Sign in / Sign up

Export Citation Format

Share Document