Niobium in the Environment and a New Method for its Trace Analysis Using Molecular or Atomic Absorption Spectrometry

1988 ◽  
Vol 33 (1) ◽  
pp. 43-57 ◽  
Author(s):  
S. A. Abbasi
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Trace Analysis ◽  
Absorption Spectrometry ◽  
New Method

A New Background-Correction Method for Atomic Absorption Spectrometry

1983 ◽  
Vol 37 (5) ◽  
pp. 419-424 ◽  
Author(s):  
S. B. Smith ◽  
G. M. Hieftje
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Broad Band ◽  
Absorption Spectrometry ◽  
Correction Method ◽  
Background Correction ◽  
New Method ◽  
New Technique ◽  
Atomic Line ◽  
Single Beam

A new method is described and tested for background correction in atomic absorption spectrometry. Applicable to flame or furnace atomizers, the method is capable of correcting backgrounds caused by molecular absorption, particulate scattering, and atomic-line overlap, even up to an absorbance value of 3. Like the Zeeman approach, the new method applies its correction very near the atomic line of interest, can employ single-beam optics, and requires no auxiliary source. However, no ancillary magnet or other costly peripherals are required and working curves are single-valued. The new technique is based on the broadening which occurs in a hollow-cathode spectral line when the lamp is operated at high currents. Under such conditions, the absorbance measured for a narrow (atomic) line is low, whereas the apparent absorbance caused by a broad-band background contributor remains as high as when the lamp is operated at conventional current levels. Background correction can therefore be effected by taking the difference in absorbances measured with the lamp operated at high and low currents. The new technique is evaluated in its ability to correct several different kinds of background interference and is critically compared with competitive methods.

Quantification of Tire-Tread Particles Using Extractable Organic Zinc as Tracer

1999 ◽  
Vol 72 (5) ◽  
pp. 969-977 ◽  
Author(s):  
Patrik Fauser ◽  
Jens Christian Tjell ◽  
Hans Mosbaek ◽  
Kim Pilegaard
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Environmental Samples ◽  
High Sensitivity ◽  
Absorption Spectrometry ◽  
Soil Samples ◽  
New Method ◽  
Organic Zinc

Abstract A method for identifying and quantifying tire-tread particles in the environment has been developed. It is based on the measurement of extractable organic zinc. The high sensitivity of atomic absorption spectrometry (AAS) with a heated graphite atomizer (HGA) permits assessment of submilligram amounts of tire debris in environmental samples. The analysis is performed on aerosol and soil samples. This new method is more accurate and faster than the previously reported IR method.

K, Ca, Mg, and Zn in platelets, as determined by atomic absorption spectrometry with use of a sealed decomposition bomb and discrete nebulization.

1985 ◽  
Vol 31 (4) ◽  
pp. 609-612 ◽  
Author(s):  
T Makino
Keyword(s):  
Metal Ions ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Accurate Determination ◽  
Absorption Spectrometry ◽  
New Method ◽  
Differential Centrifugation ◽  
Individual Variations

Abstract In this new method for precise and accurate determination of K, Ca, Mg, and Zn in platelets, small amounts of platelets, prepared by differential centrifugation and cell washing, are decomposed in a homemade mini-vessel, a sealed Teflon bomb. The metal ions in the decomposed sample are measured by atomic absorption spectrometry with discrete nebulization. Overall, CVs ranged from 0.8 to 4.8%. We investigated sex-related differences (none were found) and intra-individual variations.

scholarly journals Trace Analysis of Lead in Copper Gluconate by Atomic Absorption Spectrometry after Separation by Co-Precipitation with Bismuth

2015 ◽  
Vol 56 (3) ◽  
pp. 114-117 ◽  
Author(s):  
Michio ITO ◽  
Satoshi ISHIGURO ◽  
Fumihito TAKAHASHI ◽  
Takakazu NOMURA ◽  
Toshiaki SUGIMOTO ◽  
...  
Keyword(s):  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Trace Analysis ◽  
Absorption Spectrometry ◽  
Co Precipitation

Determination of the binding sites and binding constants between Pb(ii) and DNA using capillary electrophoresis combined with electrothermal atomic absorption spectrometry

2015 ◽  
Vol 30 (4) ◽  
pp. 903-908 ◽  
Author(s):  
Yuying Liang ◽  
Biyang Deng ◽  
Caiying Shen ◽  
Xiangdong Qin ◽  
Shaojun Liang
Keyword(s):  
Capillary Electrophoresis ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Binding Sites ◽  
Electrothermal Atomic Absorption Spectrometry ◽  
Binding Constants ◽  
Absorption Spectrometry ◽  
New Method

A new method for studying the interaction between lead(ii) and DNA was developed using capillary electrophoresis electrothermal atomic absorption spectrometry.

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