Open AccessThe new certified reference material of chlorobenzene as a means of providing the metrological traceability for calibration and measurements
Author(s) -
И. Ю. Ткаченко,
А. Г. Будко,
А. Ю. Михеева,
А. И. Крылов
Publication year - 2020
Publication title -
ètalony. standartnye obrazcy
Language(s) - English
Resource type - Journals
ISSN - 2687-0886
DOI - 10.20915/2687-0886-2020-16-1-43-55
Subject(s) - traceability , chlorobenzene , metrology , certified reference materials , calibration , mass fraction , measurement uncertainty , fraction (chemistry) , mass spectrometry , analytical chemistry (journal) , process engineering , chemistry , environmental science , chromatography , mathematics , engineering , organic chemistry , statistics , detection limit , catalysis
The article is devoted to the development of a reference material of chlorobenzene composition, providing metrological traceability of measurement results to the State primary measurement standard of units of mass (molar) fraction and mass (molar) concentration of organic components in liquid and solid substances and materials based on liquid and gas chromatography-mass spectrometry with isotopic dilution and gravimetry GET 208-2014. Thepaperconsidersanindirectmethodfor determining the purity of the starting substance, describes the main stages of development of the reference material, and presents the results of the evaluation of the reference material metrological characteristics, including studies on homogeneity and stability. Thereferencematerialof the composition of chlorobenzene has the following metrological characteristics: mass fraction of chlorobenzene (from 993.0 to 999.8 mg/g); molar fraction of chlorobenzene (from 99.30% to 99.98%); the expanded uncertainty of the certified characteristics is 0.02% (at k = 2). Thereferencematerial ensures metrological traceability to units of measuring instruments and measurement results, and is intended for verification, and calibration and graduations.