high-resolution continuum source graphite furnace

Al determination in whole blood samples as AlF via high

In this work, a new methodology for direct determination of Al in whole blood samples by means of high-resolution continuum source graphite furnace molecular absorption spectrometry has been developed, based on the formation of the AlF diatomic molecule in the

Investigation of spectral interferences in the determination

In the present work, spectral interferences on the determination of lead in fertilizer and limestone samples were investigated using high-resolution continuum source graphite furnace atomic absorption spectrometry at the main analytical lines: 217.001 and 283.306 nm. For these investigations, samples were introduced into the furnace as slurry together with a mixture of Pd and Mg as chemical

Determination of lead in medicinal plants by high

2012/10/15Determination of lead in medicinal plants by high-resolution continuum source graphite furnace atomic absorption spectrometry using direct solid sampling. Figuerdo Rgo J(1), Virgilio A, Nbrega JA, Gomes Neto JA. Author information: (1)So Paulo State

Determination of residual dimethyl sulfoxide by high

2021/3/1High-resolution continuum source molecular absorption spectrometry (HR-CSMAS) has been extended to the determination of sulfur-containing organic molecule, on the example of dimethyl sulfoxide (DMSO) as a residual solvent in CH 3 NH 3 PbI 3 perovskite thin films. perovskite thin films.

Investigation of chemical modifiers for the direct

Abstract High-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GF AAS) has been applied for the development of a method for the determination of total As in fish oil samples using direct analysis. The method does not use any

Determination of heavy metals in natural waters and sediments by high resolution

Determination of heavy metals in natural waters and sediments by high resolution-continuum source flame and graphite furnace atomic absorption spectrometry Dissertation submitted to the Faculty of Mathematics, Informatics and Natural Sciences University of

Evaluation of solid sampling high

A method for Cr determination in medicinal plants using direct solid sampling graphite furnace high-resolution continuum source atomic absorption spectrometry was developed. Modifiers were dispensable. Pyrolysis and atomization temperatures were 1500 C and 2400 C, respectively. Slopes of calibration curves (50-750 pg Cr, RSUP2/SUP gt; 0.999) using aqueous and solid standards

OPUS 4

Here we present a fast and low cost alternative for isotope analysis of boron and magnesium: high-resolution continuum source graphite furnace molecular absorption spectrometry (HR-CS-GFMAS). Two stable isotope systems were evaluated separately: boron (10B:11B) and magnesium (24Mg:25Mg:26Mg).

Determination of organically bound fluorine sum

In this study, we compare combustion ion chromatography (CIC) and high resolution-continuum source-graphite furnace molecular absorption spectrometry (HR-CS-GFMAS) with respect to their applicability for determining organically bound fluorine sum parameters. Extractable (EOF) and adsorbable (AOF) organically bound fluorine as well as total fluorine (TF) were measured in samples

Sequential determination of Cd and Cr in biomass samples

2013/10/15High-resolution continuum source graphite furnace atomic absorption spectrometry, because of the use of only one radiation source for all elements, offers the possibility of sequential determination of two or more elements from the same sample aliquot if their

Determination of Lead in Eye Shadow and Blush by High

ABSTRACT Direct solid sampling is proposed for Pb determination in eye shadow and blush samples by high-resolution continuum source graphite furnace atomic absorption spectrometry (HR-CS GF AAS). A mixture of Pd(NO 3) 2 + Mg(NO 3) 2 was employed as chemical modifier, and aqueous calibration (0.25-2.5 ng Pb, r = 0.998) was obtained.

Lead screening in DBS by solid sampling high

In this work, high-resolution continuum source graphite furnace atomic absorption spectrometry is evaluated for the direct monitoring of Pb in DBS, both as a quantitative tool and a screening method. Methodology: The development of the screening model is based on the establishment of the unreliability region around the threshold limits, 100 or 50 μg l -1 .

Determination of Total Nickel and Vanadium and Their Volatile and Thermally Stable Species in Crude Oil Using High

volatile and non-volatile vanadium compounds in Brazilian crude oils using high-resolution continuum source graphite furnace atomic absorption spectrometry, Anal. Chim. Acta 558 (2006) 195-200. Figure 3: Time-resolved absorbance signals for Ni in a crude oil

High Resolution Continuum Source AAS

High Resolution Continuum Source AAS Systems The contrAA 800 series of multielement analyzers connects the best of two worlds, featuring the high cost-effectiveness and robustness of classical atomic absorption spectrometry (AAS) alongside the flexibility and sample throughput of ICP techniques.

High

The recent arrival of high-resolution continuum source atomic absorption spectrometry represents a potential revolution in this field, in particular for direct analysis of complex samples. This review tries to illustrate the main advantages of this technology, paying particular attention to the development of direct solid sampling methods. Three solid sampling applications will be discussed

Optimization of high

2016/12/27Optimization of high-resolution continuum source graphite furnace atomic absorption spectrometry for direct analysis of selected trace elements in whole blood samples. Magdalena Wjciak-Kosior Department of Analytical Chemistry, Medical University of Lublin, Chodźki 4a,

Determination of Total Nickel and Vanadium and Their Volatile and Thermally Stable Species in Crude Oil Using High

volatile and non-volatile vanadium compounds in Brazilian crude oils using high-resolution continuum source graphite furnace atomic absorption spectrometry, Anal. Chim. Acta 558 (2006) 195-200. Figure 3: Time-resolved absorbance signals for Ni in a crude oil

Trace elements determination in high salinity petroleum

Abstract This study describes a procedure used for the determination of trace metals (Co, Cu, Mn, Ni and Pb) in high salinity petroleum produced formation water (PFW) employing high-resolution continuum source graphite furnace atomic absorption spectrometry for detection and Chelex-100 resin for matrix elimination and analytes preconcentration. Using 15.0 mL of PFW for the separation

Evaluation of solid sampling high

A method for Cr determination in medicinal plants using direct solid sampling graphite furnace high-resolution continuum source atomic absorption spectrometry was developed. Modifiers were dispensable. Pyrolysis and atomization temperatures were 1500 C and 2400 C, respectively. Slopes of calibration curves (50-750 pg Cr, RSUP2/SUP gt; 0.999) using aqueous and solid standards

Optimization of the synthesis of Magnetic Nanoparticles by Solid Sampling High Resolution Continuum Source Graphite Furnace

Optimization of the synthesis of Magnetic Nanoparticles by Solid Sampling High Resolution Continuum Source Graphite Furnace Atomic Absorption Spectrometry and Multi-Response Surface Methodology Elisa Isabel Vereda Alonso (1), M. Mar Lpez Guerrero (1), Amparo Garca de Torres (1), Jos

Al determination in whole blood samples as AlF via high

In this work, a new methodology for direct determination of Al in whole blood samples by means of high-resolution continuum source graphite furnace molecular absorption spectrometry has been developed, based on the formation of the AlF diatomic molecule in the

OPUS 4

Here we present a fast and low cost alternative for isotope analysis of boron and magnesium: high-resolution continuum source graphite furnace molecular absorption spectrometry (HR-CS-GFMAS). Two stable isotope systems were evaluated separately: boron (10B:11B) and magnesium (24Mg:25Mg:26Mg).

Determination of lead in medicinal plants by high

2012/10/15Determination of lead in medicinal plants by high-resolution continuum source graphite furnace atomic absorption spectrometry using direct solid sampling. Figuerdo Rgo J(1), Virgilio A, Nbrega JA, Gomes Neto JA. Author information: (1)So Paulo State

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