ECO-TEC®Components for Immunoassays. Leading European Provider of Environmentally-friendly, ECO-TEC®Components for Immunoassays. Kem-En-Tec Diagnostics develops and produces superior, technology enhanced, Ready-To-Use critical components for Colorimetric & Chemiluminescent based immunoassays. Our substrates, buffers & stabilizers empower our IVD and R&D Life Science customers in more than 30 countries to launch cost efficient assays that secure reliable, earlier, faster and ECO-safe diagnosis. We offer bulk production & customer specific packaging and labelling.