Closure Effects on Infrared Spectral Library Search Performance
- 1 November 1987
- journal article
- research article
- Published by SAGE Publications in Applied Spectroscopy
- Vol. 41 (8) , 1298-1302
- https://doi.org/10.1366/0003702874447149
Abstract
Closure is caused by normalization of a data set, and it affects any multivariate analytical method applied to that data set. Two common methods of normalizing infrared spectra (IR), to unit maximum absorbance and to unit vector length, are evaluated by measurement of library search performance. Search performance is evaluated, by the use of the Quantitative Reliability Metric (QRM), as a function of noise frequency and noise level.Keywords
This publication has 5 references indexed in Scilit:
- Minimizing effects of closure on analytical dataAnalytical Chemistry, 1984
- Quantitative evaluation of library searching performanceAnalytical Chemistry, 1983
- Bayesian statistical methods for use in mass spectral assignmentAnalytical Chemistry, 1983
- Infrared spectral search system for gas chromatography/Fourier transform infrared spectrometryAnalytical Chemistry, 1981
- Computer techniques for identifying low resolution mass spectraAnalytical Chemistry, 1971