| http://www.w3.org/ns/prov#value | - The NH.sub.3 selective electrode can also be formed using techniques such as the aforementioned screen printing, sputtering, chemical vapordeposition, painting, stenciling, among others.The non-active electrode lead portion 52 will contact the NH.sub.3 sensing oxide 68 and alumina layer 60 but not the doped zirconia layer 58.
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