Patent ID: 9586814
Date: 2017-03-07
CPC Classifications: B81B,G01N

Claim:
1. A microsensor for quantitative analysis of chloramines in aqueous systems, comprising: an elongated housing defining a central axis and an open interior and having a capillary opening at one end; a semi-permeable membrane covering the capillary opening, the semi-permeable membrane allowing diffusion of chloramines there-through while preventing water from entering into the open interior of the elongated housing; a chloramine sensitive element in a form of a wire, fiber or nanotube mounted within the elongated housing, the chloramine sensitive element, when used in conjunction with an anode, outputting current in an amount proportional to a concentration of chloramine present in a liquid sample in which the chloramine sensitive element is immersed, the chloramine sensitive element extending along a length of the central axis to a first end adjacent to and spaced at a constant diffusive length from the semi-permeable membrane.