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The reversed-axis method to estimate precision in standard additions analysis
(2016-01-01)
The standard additions (SA) method is one of the most important calibration strategies in quantitative chemical analysis. It is a powerful tool to minimize matrix effects and enable precise and accurate determinations. On ...
A Multi-standard Approach for GIAO 13C NMR Calculations
(American Chemical Society, 2009-12)
The influence of the reference standard employed in the calculation of 13C NMR chemical shifts was investigated over a large variety of known organic compounds, using different quantum chemistrymethods and basis sets. After ...
Clinical standards for the assessment, management and rehabilitation of post-TB lung disease
(International Union Against Tuberculosis and Lung Disease, 2021)
BACKGROUND: Increasing evidence suggests that post-TB lung disease (PTLD) causes significant morbidity and mortality. The aim of these clinical standards is to provide guidance on the assessment and management of PTLD and ...
The importance of the standards' knowledge in the teaching of English at the fiscal urban morning elementary schools in Riobamba in the School year 2006 - 2007
(QUITO / ESPE-IDIOMAS / 2007, 2007)
The purpose of the present study was to investigate "The importance of the standards' knowledge in the teaching of English at the fiscal urban morning elementary schools in Riobamba in the school year 2006 - 2007". Their ...
ISO standards a potential path for emerging markets: an initial literature review
(Virtus InterpressUA, 2011)
Nowadays, the companies and financial institutions from emerging markets are looking forward for more space in the international market. They have found several alternatives and one of them is to implement process and ...
Customized diagnostic tool for the security maturity level of the enterprise information based on ISO/IEC 27001
(2020-12)
This paper presents the design of a customized digital tool based on the ISO/IEC 27001 to determine the level of maturity of security in information resources in companies. Due to the detailed process established by ISO/IEC ...
Internal standard addition calibration: Determination of calcium and magnesium by atomic absorption spectrometry
(2015-09-01)
Internal standard addition (ISA) is a new calibration method that combines the principles of internal standardization and standard additions. The current work demonstrated the effectiveness of ISA for the determination of ...
Enhancing R&D&i through standardization and certification: the case of the Spanish construction industry
(Pontificia Universidad Católica de Chile. Departamento de Ingeniería y Gestión de la Construcción, 2008)