Standard solution

Standard solution

Standard solution is a chemical term which describes a solution of known concentration. The concentration of the solution is normally expressed in units of moles per Litre (mol/L, often abbreviated to M for molarity). Standard solutions are normally used in titrations to determine the concentration of a substance in solution.

To standardize a solution of acid you simply titrate it against a solution of alkali of known concentration. Once you have calculated this you can use it in turn as a standard solution, to find the concentration of a solution of alkali.

Standard solutions are also commonly used to determine the concentration of an analyte species. By comparing the absorbance of the sample solution at a specific wavelength to a series of standard solutions at differing known concentrations of the analyte species, the concentration of the sample solution can be found via Beer's Law. Any form of spectroscopy can be used in this way so long as the analyte species has substantial absorbance in the spectra.

"See also": Primary standard


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  • Standard solution — Standard Stand ard, a. 1. Being, affording, or according with, a standard for comparison and judgment; as, standard time; standard weights and measures; a standard authority as to nautical terms; standard gold or silver. [1913 Webster] 2. Hence:… …   The Collaborative International Dictionary of English

  • standard solution — n a solution having a standard or accurately known strength that is used as a reagent in chemical analysis * * * a solution that contains in each liter a definitely stated amount of reagent; usually expressed in terms of normality (equivalent… …   Medical dictionary

  • standard solution — noun : a solution having a standard or accurately known strength that is used as a reagent in chemical analysis * * * standard solution noun A solution of known concentration, used for purposes of comparison, commonly containing the equivalent,… …   Useful english dictionary

  • standard solution — etaloninis tirpalas statusas T sritis chemija apibrėžtis Iš etaloninės medžiagos pagamintas tirpalas. atitikmenys: angl. certified reference solution; reference solution; standard solution rus. раствор сравнения; стандартный раствор; эталонный… …   Chemijos terminų aiškinamasis žodynas

  • standard solution — normalusis tirpalas statusas T sritis fizika atitikmenys: angl. normal solution; standard solution vok. normale Lösung, f; Normallösung, f rus. нормальный раствор, m pranc. solution normale, f …   Fizikos terminų žodynas

  • standard solution — standartinis tirpalas statusas T sritis chemija apibrėžtis Tiksliai žinomos koncentracijos tirpalas. atitikmenys: angl. standard solution rus. стандартный раствор …   Chemijos terminų aiškinamasis žodynas

  • standard solution — /stændəd səˈluʃən/ (say standuhd suh loohshuhn) noun a solution of known concentration, as a normal solution …  

  • primary standard solution — pirminis etaloninis tirpalas statusas T sritis Standartizacija ir metrologija apibrėžtis Tirpalas, kuriame reikiama analičių koncentracija gaunama pasvertame tirpiklyje tirpinant pasvertą žinomos sudėties ir grynumo medžiagos kiekį. atitikmenys:… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • primary standard solution — pirminis etaloninis tirpalas statusas T sritis fizika atitikmenys: angl. primary certified reference solution; primary standard solution vok. primäre Standardlösung, f rus. первичный стандартный раствор, m; первичный эталонный раствор, m pranc.… …   Fizikos terminų žodynas

  • primary standard solution — pirminis etaloninis tirpalas statusas T sritis chemija apibrėžtis Tirpalas, kuriame reikiama analičių koncentracija gaunama pasvertame tirpiklyje tirpinant pasvertą žinomos sudėties ir grynumo medžiagos kiekį. atitikmenys: angl. certified… …   Chemijos terminų aiškinamasis žodynas

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