Reference materials最新文献

State primary standard of units of molar part, mass part and mass concentration of components in gas and gas condensate environs GET 154-2019 气体和凝析气体环境中组分的摩尔组分、质量组分和质量浓度单位国家一级标准GET 154-2019

Reference materials Pub Date : 2021-01-27 DOI: 10.20915/2687-0886-2020-16-3-23-35

A. Kolobova, L. Konopelko, O. G. Popov

引用次数: 4

Resonant vacuum gauge 谐振真空计

Reference materials Pub Date : 2020-06-24 DOI: 10.20915/2687-0886-2020-16-1-17-23

V. Gorobey, R. Kuvandykov, R. Teteruk

引用次数: 0

Development of a reference material for the composition of 0.1 m potassium dichromate solution. Certified reference material GSO 10992-2017 0.1 m重铬酸钾溶液组成标准物质的研制。认证标准物质GSO 10992-2017

Reference materials Pub Date : 2019-08-05 DOI: 10.20915/2077-1177-2019-15-2-39-50

A. Shimolin, A. Sobina

{"title":"Development of a reference material for the composition of 0.1 m potassium dichromate solution. Certified reference material GSO 10992-2017","authors":"A. Shimolin, A. Sobina","doi":"10.20915/2077-1177-2019-15-2-39-50","DOIUrl":"https://doi.org/10.20915/2077-1177-2019-15-2-39-50","url":null,"abstract":"This paper describes key stages in the development and investigation of a high-precision certified reference material (CRM) for the composition of potassium dichromate solution. The proposed reference material (RM) exhibits metrological traceability to the units of the International System of Units (SI). Not requiring additional preparation before use, the CRM is convenient for use as a titrant in redox titration. The metrological characteristics of the developed CRM were determined by the direct primary method of coulomet-ric titration using the State Primary Standard GET 176. The interval of permissible certified values of the molar concentration of potassium dichromate in the CRM under study is found to vary from 0.098 mol/dm 3 to 0.102 mol/ dm 3 . The relative expanded uncertainty (k = 2) of the certified value ofpotassium dichromate molar concentration is calculated to be 0.024 %, with relative standard uncertainties caused by long-term and short-term instability each being equal to 0.0044 %. The shelf life of the developed CRM is found to be 1 year, provided that storage conditions are ensured. A procedure for measuring the molar concentration ofpotassium dichromate is described, along with the equipment used. A comprehensive uncertainty budget for the measurements is assembled. The developed CRM is included into the State Register of Certified Reference Materials under the number GSO 10992-2017. The CRM can be used for transferring the mass (molar) concentration unit of a component to RMs and chemical reagents via oxidation-reduction reactions; the verification and calibration of measuring instruments (MI), as well as control of metrological characteristics during MI trials including type approval; MI graduation; validation of measurement procedures; control of measurement results when determining the mass (molar) fraction and mass (molar) concentration of components in liquid and solid substances and materials.","PeriodicalId":296769,"journal":{"name":"Reference materials","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114851210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Application of Raman spectroscopy in the quality control of injectable medicines 拉曼光谱在注射药品质量控制中的应用

Reference materials Pub Date : 2019-07-09 DOI: 10.20915/2077-1177-2019-15-1-39-53

Maria P. Krashenininaa, Maria Yu. Medvedevskikha, Ekaterina V. Galeevab, Roman R. Galeevb

{"title":"Application of Raman spectroscopy in the quality control of injectable medicines","authors":"Maria P. Krashenininaa, Maria Yu. Medvedevskikha, Ekaterina V. Galeevab, Roman R. Galeevb","doi":"10.20915/2077-1177-2019-15-1-39-53","DOIUrl":"https://doi.org/10.20915/2077-1177-2019-15-1-39-53","url":null,"abstract":"This paper presents the results of the identification procedure certification and subsequent quantitative determination of the active ingredients of two-component injectable medicines (active ingredient and solvent) using Raman spectroscopy. The main objective of the research was to select approaches for estimating the metrological characteristics of the measurement procedure, which include consideration of the methodological parameters and provide the metrological traceability of measurement results to SI units. According to this purpose, the GVET 176‑1‑2010 State Secondary Measurement Standard for units of mass fraction, mass (molar) concentration of components in solid and liquid substances and materials based on volumetric titration was used. The following substances were chosen as the research objects for estimating the metrological characteristics of the measurement procedure: ascorbic acid, novocaine and sodium thiosulphate. The authors of the work have demonstrated the measurement-procedure certification results, whose accurate determination was confirmed by the results of interlaboratory comparisons. The obtained results confirmed the accuracy of the identification procedure and subsequent quantitative determination, which proves its applicability for the determination of the active ingredients in two-component injectable medicines. In addition, the possibility of developing reference materials based on the medicines under study is indicated. Further development of this study may be directed at the development of an identification procedure and its certification, with subsequent quantitative determination of the active ingredients of injectable medicines having three components as well as those having a more complex composition.","PeriodicalId":296769,"journal":{"name":"Reference materials","volume":"120 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121429953","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Activity of All-Russian Research Institute of Physical-Technical and Radio-Technical Measurements (VNIIFTRI) in the sphere of physicochemical measurements 全俄物理技术和无线电技术测量研究所(VNIIFTRI)在理化测量领域的活动

Reference materials Pub Date : 2019-04-02 DOI: 10.20915/2077-1177-2018-14-3-4-51-56

V. Dobrovolskiy, N. Oganyan, S. Prokunin

引用次数: 0

Development of a certified reference material for the physical properties of the soil clay (loam) 开发鉴定土壤粘土(壤土)物理特性的标准物质

Reference materials Pub Date : 2019-02-11 DOI: 10.20915/2077-1177-2018-14-1-2-33-38

И. Н. Матвеева, Владимир Владимирович Толмачев

{"title":"Development of a certified reference material for the physical properties of the soil clay (loam)","authors":"И. Н. Матвеева, Владимир Владимирович Толмачев","doi":"10.20915/2077-1177-2018-14-1-2-33-38","DOIUrl":"https://doi.org/10.20915/2077-1177-2018-14-1-2-33-38","url":null,"abstract":"Introduction. The article presents results of developing a certified reference material for the physical properties of the soil clay (loam). The certified characteristics of the reference material are as follows: moisture content at the liquid limit via fall-cone test, moisture content at the plastic limit, soil particle density via pycnometer method.Materials and methods. The certified values of the physical properties of the soil clay (loam) were determined using the method of interlaboratory metrological experiment.Results. The bounds of absolute error of the certified values are as follows: 1.9 % for moisture content at the liquid limit via the fall-cone test, 1.5 % for moisture content at the plastic limit, 0.03 g/cm3 for soil particle density. The validity period of the certified reference material is 5 years.Discussion and conclusion. The developed reference material was registered in the State Register of type-approved reference materials as GSO 11038–2018. The reference material is aimed at: controlling the accuracy of the measurement results of certified characteristics; conducting interlaboratory comparisons; testing laboratories proficiency.","PeriodicalId":296769,"journal":{"name":"Reference materials","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127356438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Using reference materials of blast furnace slag, steelmaking slag, converter slag and fused fluxes when developing a procedure for analysis of slag-forming mixtures using inductively coupled plasma atomic emission spectrometry 利用高炉渣、炼钢渣、转炉渣和熔剂作为参考物质，开发了一种用电感耦合等离子体原子发射光谱法分析成渣混合物的方法

Reference materials Pub Date : 2018-05-29 DOI: 10.20915/2077-1177-2017-13-3-4-29-40

I. I. Chernikova, T. V. Kostrikina, K. V. Tyumneva, T. Ermolaeva

引用次数: 1

Effect of magnetic viscosity on magnetic property measurements of hard magnetic materials 磁性粘度对硬磁性材料磁性能测量的影响

Reference materials Pub Date : 2018-05-29 DOI: 10.20915/2077-1177-2017-13-3-4-21-27

A. V. Perepelkina, E. Volegova, V. Vas’kovskiy, A. Volegov

{"title":"Effect of magnetic viscosity on magnetic property measurements of hard magnetic materials","authors":"A. V. Perepelkina, E. Volegova, V. Vas’kovskiy, A. Volegov","doi":"10.20915/2077-1177-2017-13-3-4-21-27","DOIUrl":"https://doi.org/10.20915/2077-1177-2017-13-3-4-21-27","url":null,"abstract":"Цель работы. Установление влияния магнитной вязкости на результаты измерений основных гистерезисных характеристик магнитотвердых сплавов в разомкнутой магнитной цепи для оценки неопределенности измерений характеристик магнитотвердых материалов. Материалы и методы. Исследования выполнены на образце быстрозакаленного нанокристаллического сплава марки MQP-B+. Исследованы гистерезисные свойства сплава в разомкнутой магнитной цепи: петля гистерезиса, временные зависимости намагниченности в размагничивающих полях различной напряженности, полевые зависимости коэффициента магнитной вязкости и необратимой магнитной восприимчивости. Результаты исследования. Установлены зависимости результатов измерений гистерезисных свойств от условий проведения измерений. Показана необходимость учета магнитной вязкости при разработке стандартных образцов магнитотвердых материалов.","PeriodicalId":296769,"journal":{"name":"Reference materials","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126798874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0