Abstract

A new method is described, employing acetone and a sonicator, for the procurement of a homogeneous mixture of lake mud and graphite suitable for optical emission analysis. The effects of variable matrices are masked by use of a mixture of 2 parts graphite to 1 part CaF₂. The elements studied in these variable matrices were Be, Hg, Bi, Sn, Co, B, Na, Mo, V, Ag, Li, and Cd. The percent standard deviations obtained on replicate analyses are extremely small.

Sampling, Mixing, and Grinding Techniques in the Preparation of Samples for Quantitative Analysis by X-Ray Diffraction and Spectrographic Methods*1

James W. Ballard, H. I. Oshry, and H. H. Schrenk
J. Opt. Soc. Am. 33(12) 667-675 (1943)

Reflectance of Compacted Powder Mixtures

Elihu A. Schatz
J. Opt. Soc. Am. 57(7) 941-950 (1967)

Role of minerogenic particles in light scattering in lakes and a river in central New York

Feng Peng, Steven W. Effler, David O'Donnell, Mary Gail Perkins, and Alan Weidemann
Appl. Opt. 46(26) 6577-6594 (2007)

Homogeneous and inhomogeneous Jones matrices

Shih-Yau Lu and Russell A. Chipman
J. Opt. Soc. Am. A 11(2) 766-773 (1994)

Infrared specular reflectance of pressed crystal powders and mixtures

Frederic E. Volz
Appl. Opt. 22(12) 1842-1855 (1983)