small quantity

The phloridzin test consists in the hypodermic injection of a small quantity of phloridzin.

For this reason they were obliged to diminish their rations, of which they had rather a small quantity.

I cannot tell what coal it burns yet, but I believe it is a very small quantity.

When ready to examine, place a small quantity upon a warmed slide and apply a cover.

The straws, stems, and leaves contain it in comparatively small quantity, but in the seeds of all plants it is very abundant.