caa a22 4500 605465738 CHVBK 20210128100304.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00769-015-1124-5 doi (NATIONALLICENCE)springer-10.1007/s00769-015-1124-5 Development of a certified reference material for the mass concentration of active chlorine in water and its application for an interlaboratory comparison [Elektronische Daten] [Maria Krasheninina, Maria Medvedevskikh, Anna Sergeeva, Olga Golynets] The article discusses the development of a certified reference material (CRM) of mass concentration of active chlorine in water, GSO 10138-2012, which was performed in the Ural Scientific Research Institute for Metrology (UNIIM), Russia. For this purpose, N-chlorobenzenesulfonamide sodium salt trihydrate (chloramine B) was selected. Identification and purity assessment of the chloramine B reagent were conducted by applying gas chromatography with mass spectrometric detection. The CRM's certified value was determined by oxidation-reduction titration. Its uncertainty was estimated by combining the contributions from characterization, inhomogeneity and instability. The article also presents the results of an interlaboratory comparison in which 42 Russian laboratories participated. Springer-Verlag Berlin Heidelberg, 2015 Reference materials nationallicence Active chlorine nationallicence Water quality nationallicence Interlaboratory comparison nationallicence Krasheninina Maria Ural Scientific Research Institute for Metrology (UNIIM), Krasnoarmeiskaya St. 4, 620000, Ekaterinburg, Russian Federation aut Medvedevskikh Maria Ural Scientific Research Institute for Metrology (UNIIM), Krasnoarmeiskaya St. 4, 620000, Ekaterinburg, Russian Federation aut Sergeeva Anna Ural Scientific Research Institute for Metrology (UNIIM), Krasnoarmeiskaya St. 4, 620000, Ekaterinburg, Russian Federation aut Golynets Olga Ural Scientific Research Institute for Metrology (UNIIM), Krasnoarmeiskaya St. 4, 620000, Ekaterinburg, Russian Federation aut Accreditation and Quality Assurance Springer Berlin Heidelberg 20/3(2015-06-01), 171-178 0949-1775 20:3<171 2015 20 769 https://doi.org/10.1007/s00769-015-1124-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00769-015-1124-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Krasheninina Maria Ural Scientific Research Institute for Metrology (UNIIM), Krasnoarmeiskaya St. 4, 620000, Ekaterinburg, Russian Federation aut NATIONALLICENCE 700 1- Medvedevskikh Maria Ural Scientific Research Institute for Metrology (UNIIM), Krasnoarmeiskaya St. 4, 620000, Ekaterinburg, Russian Federation aut NATIONALLICENCE 700 1- Sergeeva Anna Ural Scientific Research Institute for Metrology (UNIIM), Krasnoarmeiskaya St. 4, 620000, Ekaterinburg, Russian Federation aut NATIONALLICENCE 700 1- Golynets Olga Ural Scientific Research Institute for Metrology (UNIIM), Krasnoarmeiskaya St. 4, 620000, Ekaterinburg, Russian Federation aut NATIONALLICENCE 773 0- Accreditation and Quality Assurance Springer Berlin Heidelberg 20/3(2015-06-01), 171-178 0949-1775 20:3<171 2015 20 769