Abstract

Many investigators have been confronted with the problem of preparing sturdy pressed powder specimens for use in x-ray spectrochemical analysis. Some have ground or otherwise mixed the powdered material with a binder, such as boric acid or cellulose powder prior to pressing in a mold. This dilutes the sample and causes some added uncertainty. One never knows whether the binder is evenly dispersed throughout the sample. Some investigators have pressed powders on a backing of boric acid, cellulose powder, or Boraxo.

Goniospectrophotometric analysis of pressed PTFE powder for use as a primary transfer standard

Mark D. Fairchild and Denis J. O. Daoust
Appl. Opt. 27(16) 3392-3396 (1988)

Some Observations on the Use of Powders in Spectrochemical Analysis*

A. E. Ruehle and E. K. Jaycox
J. Opt. Soc. Am. 33(2) 109-112 (1943)

Air-Cooled Electrodes for the Spectrochemical Analysis of Powders*†‡

B. J. Stallwood
J. Opt. Soc. Am. 44(2) 171-176 (1954)

Spectrochemical Analysis by the Copper Spark Method*

Mark Fred, Norman H. Nachtrieb, and Frank S. Tomkins
J. Opt. Soc. Am. 37(4) 279-287 (1947)

Reflection properties of pressed polytetrafluoroethylene powder

Victor R. Weidner and Jack J. Hsia
J. Opt. Soc. Am. 71(7) 856-861 (1981)