spot plate

noun

Chemistry.

1. a flat ceramic or plastic plate containing small wells on which spot tests are made.

Example Sentences

It will be seen, by reference to my sketch of the spot, Plate 20, that this conformation does actually exist there 293 with great definiteness: Turner has only enlarged and thrown it into more numerous alternations of light and shade.

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The presence of cholesterol and phytosterol may be detected by dissolving a small portion of the unsaponifiable matter in acetic anhydride, and adding a drop of the solution to one drop of 50 per cent. sulphuric acid on a spot plate, when a characteristic blood red to violet coloration is produced.

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