Determination of toxicity

摘要

PCT No. PCT/GB93/02603 Sec. 371 Date Mar. 21, 1996 Sec. 102(e) Date Mar. 21, 1996 PCT Filed Dec. 20, 1993 PCT Pub. No. WO95/00834 PCT Pub. Date Jan. 5, 1994There is disclosed a method of determining the toxicity of a fluid sample comprising the steps of: (i) mixing the sample with a suspension of light emitting organisms; (ii) monitoring the light output (E) of the mixture continually over a period of time (to-tn) using a photodetector device sensitive to the wave length of the emitted light; and (iii) determining the differential d(log E)/dt to give a measure of toxicity concentration.