نتایج جستجو برای: flame atomic absorption spectroscopy

تعداد نتایج: 372101  

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2001
T Stafilov G Pavlovska K Cundeva D Zendelovska V Paneva

A fast method for separation, preconcentration and determination of cadmium in drinking (source, well, tap) and water for irrigation is described. Iron(III) hexamethylenedithiocarbamate, Fe(HMDTC)3, has the role of colloid precipitate flotation collector. The determination of cadmium in final water solutions preconcentrated by flotation can be performed by flame (FAAS) or electrothermal atomic ...

2004

A simple and inexpensive hydride generation system that uses a pyrex boiling tube as a reduction vessel to hold the acidified sample into which 2cm of 100-300mg sodium tetrahydroborate (III) solution is injected such that the excess molecular hydrogen evolved carries the generated arsine directly through the atomic absorption spectrophotometer nebuliser to a nitrogen-hydrogen entrained air flam...

2010
Wenting Sun Timothy Ombrello Sang Hee Won Yiguang Ju

A non-equilibrium plasma assisted combustion system was developed by integrating a counterflow burner with a nano-second pulser to study the effects of atomic oxygen production on the extinction limits of methane diffusion flames at low pressure conditions. The production of atomic oxygen from the repetitive nano-second plasma discharge was measured by using two-photon absorption laser-induced ...

Journal: :International journal of physical research 2021

The risks associated with smoking can be due to the inhalation of toxic substances like heavy metals and polycyclic aromatic hydrocarbons (PAHs) that released during tobacco burns. In present study we measured lead Pb three other (cadmium Cd; Chrome Cr; Zinc Zn) by flame atomic absorption spectroscopy (FAAS). a twenty-five brands cigarettes, assessing potential related health estimated intakes ...

2011
L. Tayebi M. Cheraghi

In this research the level of mercury is analyzed in muscle tissue of Otolithes ruber retailed in Hamedan, Iran were determined by flame atomic absorption spectrometry after wet digestion. Analysis of mercury was carried out by spectrophotometrically. The average concentration of Hg in muscle tissue of Otolithes ruber was 0.030±0.026 μg/g so lower than to compare with the Maximum Allowable Conc...

2005
Kaoru Wakatsuki Jungho Kim Marc R. Nyden

Title of Dissertation: High Temperature Radiation Absorption of Fuel Molecules And An Evaluation of Its Influence on Pool Fire Modeling Kaoru Wakatsuki Doctor of Philosophy, 2005 Dissertation Directed By: Associate Professor, Jungho Kim Associate Professor, Greg Jackson Department of Mechanical Engineering Infrared absorption coefficients of various gas and liquid fuels (propane, nheptane, meth...

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