TY - CONF A1 - Heller, Benedikt A1 - Rurack, Knut A1 - Biyikal, Mustafa T1 - Reaction-based detection of cyanide anions using a non-fluorescent polymer via “turn-on” fluorescence N2 - Cyanide is known to be a very hazardous and toxic substance. Through the binding to cytochrome oxidase it inhibits the oxygen utilization in cells. The LD50 of cyanide is as low as 1.0 mg/kg. Therefore it is inalienable to develop sensing methods to detect cyanide with a very high selectivity and sensitivity. In our group we developed a non-fluorescent monomer which is able to detect cyanide-anions with very high selectivity and sensitivity based on a “turn-on” fluorescence method. As cyanide-source we used tetrabutylammoniumcyanide (TBAC). Using an excitation wavelength of 600 nm the increase in fluorescence at 642 nm is strictly selective with cyanide-anions. Different anions like fluoride, hydroxide or acetate show no increase at all. With this new detection system, concentrations as low as 1.6 nM can be detected. T2 - Europ(t)rode 2018 CY - Naples, FL, USA DA - 25.03.2018 KW - Cyanide detection KW - Fluorescence KW - Optical sensing PY - 2018 AN - OPUS4-45663 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -