Abstract
Determination of the total concentration (с Σ) of similar organic compounds as an total index (TI), expressed in terms of a standard substance of Xst, is a widely used but poorly studied type of chemical analysis. The main problem is the inaccuracy of estimate с Σ. The article considers reasons for the appearance of systematic errors, rules of formation of groups of simultaneously determined compounds, and the choice of Xst. A classification of TI taking into account the nature of Xst is proposed. To improve the accuracy of analysis, it is expedient to simultaneously use of several standards and construct multivariate calibration dependences.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
