The continuous polarographic determination of small amounts of nitroglycerine in plant effluent

Abstract

A fully automatic polarographic method is described for the continuous monitoring of nitroglycerine plant effluent, for which an arbitrary maximum level of 100 p.p.m. of nitroglycerine has been set.

Conventional polarographic principles are involved, but the polarograph used has been specially designed, and incorporates some novel features that make it admirably suitable for this and similar work.

Constructional details are given of the polarograph, and of an alarm system that operates when the permitted level of nitroglycerine in the effluent is exceeded.