scholarly journals Flameless atomic absorption apparatus for analyzing alpha-radioactive materials

1974 ◽  
Author(s):  
L.E. Cox
Keyword(s):  
Atomic Absorption ◽  
Radioactive Materials ◽  
Flameless Atomic Absorption ◽  
Absorption Apparatus

scholarly journals Determination of Trace Metals in Cigarette Smoke by Flameless Atomic Absorption Spectrometry

1978 ◽  
Vol 9 (4) ◽  
Author(s):  
M. A. Perinelli ◽  
N. Carugno
Keyword(s):  
Trace Metals ◽  
Atomic Absorption ◽  
Gas Phase ◽  
Cigarette Smoke ◽  
Absorption Spectrometry ◽  
Total Particulate Matter ◽  
Flameless Atomic Absorption ◽  
Flameless Atomic Absorption Spectrometry ◽  
Quick Determination

Abstract A flameless atomic absorption method has been developed which permits the quick determination of the levels of trace metals in cigarette smoke. The total particulate matter (TPM) was collected by electrostatic precipitation and dissolved in methanol before analysis. In order to trap the last remaining traces of metals, the gas phase was passed through microporous filters which were analysed direct. The sensitivity of this method for the metals studied (Zn, Pb, Cd, Ni) is good in both the particulate and gas phase samples, with the sole exception of Ni in the gas phase. Results obtained by the flame and flameless methods are compared.

scholarly journals Determination and evaluation of principal minerals in Negella sativa by atomic absorption technical methods

2011 ◽  
Vol 8 (1) ◽  
pp. 263-267
Author(s):  
Baghdad Science Journal
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Flame Atomic Absorption Spectroscopy ◽  
Flameless Atomic Absorption ◽  
Flame Atomic Absorption ◽  
Flameless Atomic Absorption Spectroscopy ◽  
Low Concentrations ◽  
Wet Ashing ◽  
High Concentrations

Determination and evaluation of principal minerals in Negella sativa by atomic absorption technical methods were showed, using wet ashing method. This work was done on Negella sativa because of wide using of this plant in many formulations ( in food or medicine ).two types of atomic absorptions were used : first, flame atomic absorption spectroscopy, for minerals of high concentrations such as, Na, Mg, K, Fe, Ca, Li, Ni, Zn, Mn, Cu. Second, flameless atomic absorption spectroscopy, for minerals of low concentrations such as, Al, Si, V, B, Pb, Co, Cd, Cr ,Si, Hg, Sn .The results showed the existence of many minerals in Negella sativa useful to human sanity with acceptable dietary allowance. On other side, the presence of harmful minerals to human sanity(Pb, Cd, Hg ) were negligible.

Flameless Atomic Absorption Spectroscopy of Plasma Chromium

1980 ◽  
Vol 17 (3) ◽  
pp. 144-147 ◽  
Author(s):  
David A Thompson
Keyword(s):  
Atomic Absorption ◽  
Absorption Spectroscopy ◽  
Atomic Absorption Spectroscopy ◽  
Analytical Signal ◽  
Plasma Samples ◽  
Control Groups ◽  
Flameless Atomic Absorption ◽  
Flameless Atomic Absorption Spectroscopy ◽  
The Mean ◽  
The Difference

A flameless atomic absorption spectroscopy method has been developed for the measurement of chromium. Background correction has been modified by recording non-atomic absorption separately from atomic absorption on a double-pen recorder. This was achieved by using the prime spectral line of uranium (358·5 nm, within 0·6 nm of that of chromium—357·9 nm) and was possible only because of the absence of uranium from the plasma samples. Masking of the analytical signal at atomisation by non-atomic absorption was thus eliminated and gave the method a sensitivity of 3 pg and a detection limit of 150 pg/ml. Postprandrial plasma chromium values were measured in 32 insulin-treated diabetics (1·65 ±0·15 ng/ml), in 53 non-insulin treated diabetics (2·05 ± 0·16 ng/ml), and in 144 control non-diabetics (2·00 ± 0·14 ng/ml). The difference between the mean plasma chromium level of the insulin-treated diabetics and both the non-insulin treated diabetics and the control groups was statistically significant (p<0·05).

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