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Chemical Analysis Metrology
K. S. Sychev, E. A. Okunskaya
Problems of correct validation of the suitability and assessment of the economic efficiency of HPLC methods The article formulates a set of characteristics of the HPLC method required for a complete description of its custom properties. The standard accepted validation procedure has been shown to affect only three of the ten key quality characteristics of an HPLC method. The quality characteristics of the HPLC method that are not included in the standard validation kit are discussed. The classification of the characteristics of the quality of the HPLC method is given, it is proposed to divide them into three groups according to the influence on the suitability and economic efficiency.
Problems of correct validation of the suitability and assessment of the economic efficiency of HPLC methods The article formulates a set of characteristics of the HPLC method required for a complete description of its custom properties. The standard accepted validation procedure has been shown to affect only three of the ten key quality characteristics of an HPLC method. The quality characteristics of the HPLC method that are not included in the standard validation kit are discussed. The classification of the characteristics of the quality of the HPLC method is given, it is proposed to divide them into three groups according to the influence on the suitability and economic efficiency.
Tags: chromatographic separation cost-effectiveness hplc method suitability testing laboratory validation валидация вэжх-методика испытательная лаборатория пригодность хроматографическое разделение экономическая эффективность
Analytical Methods and Instruments
FeO Analysis in Iron Ore Sinters Using the XRD Channel on Multi-Channel XRF Spectrometer Simultix15
X-ray fluorescence spectrometry is a fast and accurate method of analysis that meets all the modern requirements of the metallurgical industry. The article presents an integrated approach implemented in the Simultix15 Rigaku multichannel X-ray fluorescence spectrometer with wavelength dispersion. For the quantitative determination of the content of ferrous oxide in the iron ore agglomerate, the spectrometer provides a mode using X-ray diffraction. Other components of the samples are determined on the same instrument using X-ray spectral channels. Calibration plots and repeatability test results are shown.
Tags: calibration characteristic iron ore agglomerate multichannel wave-dispersive x-ray fluorescence spectrometer x-ray diffraction агломерат железной руды градуировочная характеристика многоканальный волнодисперсионный рентгенофлуоресцентный спектро рентгеновская дифракция
6470B Triple quadrupole liquid chromatography mass spectrometer – winner of Scientists’ Choice Awards 2020
Agilent Technologies Inc. is the recipient of two 2020 Scientists’ Choice Awards announced at the SelectScience Virtual Analytical Summit 2021: Best New Spectroscopy Product of 2020 and Analytical Science Webinar of the Year. The Scientists’ Choice Awards recognize the world’s most innovative and effective analytical science technologies.
IONUS – Ion Chromatograph (Ion Analyzer)
For more than a quarter of a century, the German company membraPure has been successfully operating in the market of pure and ultrapure water systems, analyzers of total organic carbon and amino acids, as well as ion chromatographs. The company»s specialists are constantly improving equipment, developing new tools, using advanced technologies in their work. The manufactured products do not require special maintenance and are provided with online service support. High-tech devices are widely known all over the world and are sold through the dealer network and the company’s own offices.
A. Ya. Yashin, Ya. I. Yashin, V. V. Rodchenkova
High temperature high performance liquid chromatography. Short review The features of high-temperature high-performance liquid chromatography (HT HPLC) are discussed. HPLC methods that use high temperatures, as well as detectors and sorbents used at high temperatures are listed. The areas of application are considered and the main advantages of HT HPLC are shown: a significant reduction in the separation time, an increase in the efficiency of columns, the possibility of using pure water as an eluent. The negative effect of high temperatures on the stability of both the compounds to be separated and the sorbents was noted.
High temperature high performance liquid chromatography. Short review The features of high-temperature high-performance liquid chromatography (HT HPLC) are discussed. HPLC methods that use high temperatures, as well as detectors and sorbents used at high temperatures are listed. The areas of application are considered and the main advantages of HT HPLC are shown: a significant reduction in the separation time, an increase in the efficiency of columns, the possibility of using pure water as an eluent. The negative effect of high temperatures on the stability of both the compounds to be separated and the sorbents was noted.
Tags: column efficiency detector high-temperature hplc separation time sorbent время разделения высокотемпературная вэжх детектор сорбент эффективность колонок
Modern laboratory
WESEMANN laboratory furniture – convenience, quality and safety
INNOFORLAB, the exclusive representative of Wesemann laboratory furniture in the Russian Federation, has successfully passed the assessment procedure established by the technical regulations of the Customs Union and received an EAC certificate. Now, furniture from Wesemann is allowed to equip not only laboratories, but also educational institutions in which children under 14 years of age study. Wesemann furniture meets the most stringent requirements and high standards for educational, scientific and research areas.
Laboratory Accreditation
V. I. Sheveleva
Features of the new edition of the international standard on terms and definitions in the field of conformity assessment ISO / IEC 17000: 2020 In June 2020, the ISO Committee on Conformity Assessment (CASCO), in cooperation with the International Electrotechnical Commission (IEC), completed the updating of the international standard ISO / IEC 17000: 2020 Conformity Assessment. Vocabulary and general principles. The published standard contains terms and definitions in the field of conformity assessment, including the accreditation of conformity assessment bodies. The article contains new terms, their interpretation, examples of application. The concept of the concept of a conformity assessment system, which has undergone changes within the framework of the functional approach, is explained.
Features of the new edition of the international standard on terms and definitions in the field of conformity assessment ISO / IEC 17000: 2020 In June 2020, the ISO Committee on Conformity Assessment (CASCO), in cooperation with the International Electrotechnical Commission (IEC), completed the updating of the international standard ISO / IEC 17000: 2020 Conformity Assessment. Vocabulary and general principles. The published standard contains terms and definitions in the field of conformity assessment, including the accreditation of conformity assessment bodies. The article contains new terms, their interpretation, examples of application. The concept of the concept of a conformity assessment system, which has undergone changes within the framework of the functional approach, is explained.
Tags: conformity assessment decision expiry independence restoration standard validation verification валидация верификация восстановление истечение срока действия независимость оценка соответствия проверка решение стандарт
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