A Pragmatic Smoothing Method for Improving the Quality of the Results in Atomic Spectroscopy

@article{Bennun2017APS,
  title={A Pragmatic Smoothing Method for Improving the Quality of the Results in Atomic Spectroscopy},
  author={Leonardo Bennun},
  journal={Applied Spectroscopy},
  year={2017},
  volume={71},
  pages={1652 - 1664}
}
  • L. Bennun
  • Published 7 March 2016
  • Physics
  • Applied Spectroscopy
A new smoothing method for improvement on the quantification of spectral signals, which requires the previous knowledge of the functions that should be quantified, is presented. These functions are used as weighted coefficients in the proposed smoothing algorithm. This method is extremely effective in reducing the scatter of signals obtained by the multichannel analyzer and it could be applied in atomic and nuclear spectroscopies, preferably to these techniques where net counts are a linear… 

Figures and Tables from this paper

Evaluation of the Optimal Dilution Sequence for the Minimization of the Concentration Uncertainty in Total Reflection X-Ray Fluorescence (TXRF)

Abstract The effect of different dilution series on the obtained concentration uncertainty was investigated in order to identify the optimal dilution sequence which produces the smallest confidence

References

SHOWING 1-10 OF 27 REFERENCES

New procedure for intensity and detection limit determination in spectral trace analysis : Application for trace mercury by TXRF

A new procedure for the identification and quantification of spectral signals based on the method of maximum likelihood is presented. It is particularly appropriate for the analysis of signal

A procedure for overlapping deconvolution and the determination of its confidence interval for arsenic and lead signals in TXRF spectral analysis

We studied the applicability and validity range of a mathematical procedure on the basis of the principia of maximum likelihood for the identification and quantification of arsenic and lead. This

Uncertainty in the multielemental quantification by total-reflection X-ray fluorescence: theoretical and empirical approximation.

TLDR
An unexpected U-behavior has been found for the empirical uncertainty in TXRF measurements whose explanation can be due to the sum of several sources of uncertainty not considered like variations of the Compton background or the nonlinearity of the Si(Li) detector quantum efficiency.

SAX, software for the analysis of x-ray fluorescence spectra†

A program for chemical analysis by energy-dispersive x-ray spectrometry is described. Fluorescent multiplets are fitted to a high degree of accuracy by a method using an empirical energy-dependent

TXRF quantification of interfering heavy metals using deconvolution, cross-correlation, and external standard calibration

We developed a general procedure that includes external standard calibration and a deconvolution of spectral signals, which determined with high accuracy the relative proportion and absolute

Technical Note: Measuring contrast- and noise-dependent spatial resolution of an iterative reconstruction method in CT using ensemble averaging.

TLDR
A simple technique using ensemble averaging from repeated CT scans can be used to measure the spatial resolution of IR techniques in CT at very low contrast levels, and the evaluated IR method degraded the spatialresolution at low contrast and high noise levels.