[PDF] Top 20 Detection of rubidium in mica using atomic absorption spectrometry
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Detection of rubidium in mica using atomic absorption spectrometry
... the absorption value of rubidium in mica ore, but has some effects when the concentration of iron was more than 1000 ...the absorption value was taken place with the concentration of iron ... See full document
7
Preconcentration and Determination of Trace Amounts of Heavy Metals in Water Samples Using Membrane Disk and Flame Atomic Absorption Spectrometry
... natural water samples was developed. The metal ions were complexed with Natriumdiethyldithiocarbaminat (Na-DDTC) then adsorbed onto octadecyl silica membrane disk, recoverd and determined by FAAS. Extraction efficiency, ... See full document
9
Determination of the trace element contents of Althaea rosea seeds by Atomic Absorption Spectrometry and evaluation using multivariate analysis
... low detection limit and simultaneous determination has been widely ...was using the chemometric techniques such as principal component analysis (PCA) and cluster analysis ... See full document
6
Assessment of the trace Levels of Lead (II) Using Solid Phase Extraction and Flame Atomic Absorption Spectrometry
... of detection (LOD) is defined operationally as the analyte concentration yielding an analytical signal equal to some confidence factor (K b ) times the standard deviation of the blank measurements (S b ) divided ... See full document
10
Determination of Heavy Metals at Sub ppb Levels in Water by Graphite Furnace Atomic Absorption Spectrometry Using a Direct Introduction Technique after Preconcentration with an Iminodiacetate Extraction Disk
... The present investigation concerns a further applica- tion of direct introduction/AAS to determine heavy me- tals at sub-ppb levels in water. This method involves pre- concentration of Co, Ni, Cu, Cd, Sn, Pb, and Bi with ... See full document
10
Review of procedures involving separation and Solid Phase Extraction for the determination of cadmium using spectrometric techniques
... for detection of this element is done in various ...flame atomic absorption spectrometry and inductively coupled plasma optical emission ...of using Solid-phase extraction in the ... See full document
18
Preconcentration and Determination of Chromium Species Using Octadecyl Silica Membrane Disks and Flame Atomic Absorption Spectrometry
... A novel and selective method for the fast determination of trace amounts of chromium species in water samples has been developed. The procedure is based on the selective formation of chromium diethyldithiocarbamate ... See full document
10
Investigation of Distribution for Trace Lead and Cadmium in Chinese Herbal Medicines and Their Decoctions by Graphite Furnace Atomic Absorption Spectrometry
... Lead and cadmium in herbal medicines are highly toxic to living organisms even in low concentrations. An effective method is developed for analysis of trace lead and cadmium in Chinese herbal medicines and their ... See full document
6
ON-LINE PRECONCENTRATION AND DETERMINATION OF LEAD IN WATER BY FLOW INJECTION- FLAME ATOMIC ABSORPTION SPECTROSCOPY USING AMBERLITE XAD-16 FUNCTIONALIZED WITH XYLENOL ORANGE
... sample using flow injection with flame atomic absorption spectrometry (FAAS) for ...of using this resin for several times (70-80 ...samples using certified Pb(II) nitrate ... See full document
13
Preconcentration of Lead in Sugar Samples by Solid Phase Extraction and Its Determination by Flame Atomic Absorption Spectrometry
... The objective of this paper is to prepare dithizone modified C18 SPE cartridges and investigate its ability to absorb lead by means of FAAS. Despite the fact that rival methods utilizing inductively coupled plasma (ICP) ... See full document
6
Iron excretion in urine in patients with acute kidney injury after cardiac surgery
... induced using fentanyl, etomidat, pan- curonium (doses calculated according to body weight), and ...blood using a GEM 3000 ma- chine (Instrumentation Laboratory, Bedford, ...an atomic ... See full document
6
Study of Calcium and Sodium Behavior to Identify Milk Adulteration Using Flame Atomic Absorption Spectrometry
... flame atomic absorption spectrometer (AA240FS; Varian, Mulgrave, Australia) fitted with a deuterium lamp for background ...in absorption and emission mode, ... See full document
5
Development of an Eco-Friendly Method for Iron Extraction and Determination in Pharmaceuticals Using Ciprofloxacin Drug as Chelating agent Zuhair A-A Khammas | Noora S. Mubdir
... Measurement of Residual iron (III) A flame atomic absorption spectrophotometer is used to detect the remaining iron in aqueous solution after extraction by CPE. The experiments are conducted by taking 10 mL ... See full document
12
Laser-induced thermal lens spectrometry after cloud point extraction for trace analysis of mercury in water and drug samples
... for detection of micro amounts of samples is probably one of the most frequently encountered problems in trace chemical ...lens spectrometry (sensitivity), it gives the possibility to analyze a very low ... See full document
6
Ion-association dispersive liquid–liquid microextraction of ultra-trace amount of gold in water samples using Aliquat 336 prior to inductively coupled plasma atomic emission spectrometry determination
... Because of high toxicity and limitation in extracting various analytes of commonly used extraction solvents, two different aspects (I) the use of new solvents, typic- ally ionic liquids and (II) the expansion of the ... See full document
8
The effect of intensive traffic on soil and vegetation risk element contents as affected by the distance from a highway
... The soil pH was determined using deionised wa- ter or 0.2 mol/L KCl (w/v = 1 + 2.5) (Novozamsky et al. 1993). Cation-exchange capacity (CEC) was calculated as the sum of Ca, Mg, K, Na, Fe, Mn, and Al extractable ... See full document
6
Analysis of total arsenic content in purchased rice from Ecuador
... generation-atomic absorption spectrometry (HG-AAS) coupling of a PerkinElmer AA200 atomic absorption spectrophotometer to a PerkinElmer MHS 15 hydride generator (Perki- nElmer ... See full document
7
Determination of Copper Trace in Steel by Direct Method Using Atomic Absorption Spectrophotometry
... of the sulphuric acid, phosphoric acid and water mixture (sulphuric acid, sp. gr. 1.84, phosphoric acid, sp. gr. 1.75 and water in the ratio of 1:1:4, respectively). When the reaction had ceased, nitric acid was added ... See full document
10
Flame spectroscopic studies of bismuth, lanthanum, lead and silver with particular reference to their determination in steels
... 0 .01% of bismuth in steels, have shown the need to employ solvent extraction to concentrate the bismuth before its determination by atomic absorption spectrometry. The bismuth was extracted as the ... See full document
240
Evaluation on the Concentration of Heavy Metals in Surface Waters in the Municipality of Pratápolis MG
... Heavy metals or trace elements are a class of highly reactive and some ex- tremely toxic substances. Such toxicity is caused by the inability of the organism to metabolize them, leading to the bioaccumulation of these ... See full document
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