R. Clark

247. Derivatives of cyclo-2 : 5-dithia-3 : 4-dimethylenestibine

R. Clark, 1932 .

Analysis of organophosphorus pesticides in rice by supercritical fluid extraction and quantitation using an atomic emission detector.

R. Wells, Z. Skopec, R. Clark, 1993, Journal of chromatographic science.

Urea as a Solvent

R. Clark, 1951, Nature.

The detection and colorimetric determination of tin by means of substituted 1:2-dimercaptobenzenes. A specific reagent for tin

R. Clark, 1936 .

Toluene-3,4-dithiol and its derivatives as analytical reagents: A new approach to qualitative inorganic analysis

R. Clark, R. Neville, 1959 .

o-Dithiols in analysis. Part VII. Toluene-3:4-dithiol as a general analytical reagent in qualitative analysis

R. Clark, 1958 .

The colorimetric determination of tin by means of toluene-3:4-dithiol (“dithiol”)

R. Clark, 1937 .