摘要 |
1. Device for the detection of substances inhibiting micro-organisms in a liquid sample, consisting of a nutrient substrate and a micro-organism-containing substrate, characterised in that the micro-organism containing substrate is a dry film produced from a synthetic resin dispersion which contains micro-organisms in an amount of from 10 to 109 per g. and water-soluble or water-swellable, macromolecular openers, as well as possibly further additive materials, whereby the amount ratio of synthetic resin to opener amounts to 1000:1 to 1:10. |