CHEMILUMINESCENT REACTIONS WITH PHYSIOLOGIC SUBSTANCES.

Chemiluminescent spectra of alkali-halogen reactions

Using a beam-gas arrangement, we have obtained the chemiluminescence spectra of alkali-halogen reactions at pressures less than I mtorr. The spectra in general are characterized by a broad molecular feature on which are superimposed sharp atomic alkali transitions. Under higher resolution (better than 5 A) the molecular feature consists of a single progression of regularly spaced peaks extendin...

Reactions of Dyes with Cell Substances

Thionine is a metachromatic stain commonly used by histologists. In our preliminary survey of the staining of smears of purified nuclear materials (l), it was noted that thionine gave color variation but not reliable differentiation among the substances. The color variations were not conditioned by pH or by the acidity or basicity of the materials, as with hematoxylin. Thionine has been much us...

Reactions of 6-aminopenicillanic acid with carbohydrates and related substances.

A new physiologic race

Genetics of Sensory Thresholds: Individual Taste Reactions for Different Substances.