OSA's Digital Library

Applied Spectroscopy

Applied Spectroscopy

| PUBLISHED BY SAS — AVAILABLE FROM SAS AND OSA

  • Vol. 40, Iss. 7 — Sep. 1, 1986
  • pp: 949–953

The Selection and Evaluation of Internal Standard Elements Based on Elemental/Instrumental Covariance

G. E. Bentley, V. T. Hamilton, E. J. Peterson, and L. E. Wangen

Applied Spectroscopy, Vol. 40, Issue 7, pp. 949-953 (1986)


View Full Text Article

Acrobat PDF (554 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

The selection of internal standards for elements analyzed by a multielement direct-current argon plasma emission spectrometer was made by studying the elemental covariance of a multielement standard. Principal components factor analysis of many analytical determinations of this standard indicated that the elemental covariance clustered into two main groups. These groups were a function of instrumental variation, mainly plasma shape. The first principal factor accounted for 43.4% of the variance and had high loadings for strontium, barium, boron, manganese, nickel, titanium, silicon, calcium, and cadmium. The second principal factor accounted for an additional 36.7% of the variance and had high loadings for lithium, vanadium, magnesium, potassium, and aluminum. Compared with an external standard, internal standards dictated by the principal components factor analysis results gave improved precision. Internal standards not correlated with response variations degraded both the accuracy and the precision of the analysis.

Citation
G. E. Bentley, V. T. Hamilton, E. J. Peterson, and L. E. Wangen, "The Selection and Evaluation of Internal Standard Elements Based on Elemental/Instrumental Covariance," Appl. Spectrosc. 40, 949-953 (1986)
http://www.opticsinfobase.org/as/abstract.cfm?URI=as-40-7-949

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Log in to access OSA Member Subscription

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited