The stainless steel electrochemical detection Auxiliary Electrode block has alignment pins that insure the thin-layer gasket and working electrode are properly aligned when assembled. The auxiliary electrode includes a phenolic base, arms, and inlet/exit connections. Order complete electrochemical detector flow cell package, or individual auxiliary electrode parts, including the three parts of the clamping mechanism. There are four auxiliary electrode styles available, cross flow with down-stream reference electrode, cross flow with reference electrode port, arc flow, and radial flow. If fraction collection or connection to a second detector (UV, fluorescence, or MS) is required, then the cross-flow with reference port (QVMF1092) should be used. Otherwise, for cross-flow applications we recommend the downstream reference configuration (QVMF1093).