Results 121 to 130 of about 1,109 (174)
Some of the next articles are maybe not open access.
Determination of potassium by titrimetry
Talanta, 1966Epp's method is modified by the addition of solid calcium hydroxide to the sample solution. This simplified the procedure, increased the rapidity and lessened the sources of error. With samples containing various ions except ammonium ion, potassium (conc. of KCl 0.25 to 1.8 x 10(-2)M) was determined within 0.4% of error, by means of corrections for the
openaire +2 more sources
Deep Sea Research Part B. Oceanographic Literature Review, 1983
The universal titration system described is especially designed for potentiometric and photometric routine titrations. The flow system implies the possibility to titrate liquid samples directly without pipetting. The interpolation of the endpoint is based on only 4–10 increments. The outstanding reproducibility of ±0.2% S.D.
H. Bartels, P. Walser
openaire +2 more sources
The universal titration system described is especially designed for potentiometric and photometric routine titrations. The flow system implies the possibility to titrate liquid samples directly without pipetting. The interpolation of the endpoint is based on only 4–10 increments. The outstanding reproducibility of ±0.2% S.D.
H. Bartels, P. Walser
openaire +2 more sources
2014
In this chapter we focus in more detail on the underpinning quantitative theory of volumetric analysis, starting with solving complex equilibrium problems using the so-called systematic approach to equilibrium. The fractional composition concept is then introduced as a means of representing complex data in a single format.
openaire +1 more source
In this chapter we focus in more detail on the underpinning quantitative theory of volumetric analysis, starting with solving complex equilibrium problems using the so-called systematic approach to equilibrium. The fractional composition concept is then introduced as a means of representing complex data in a single format.
openaire +1 more source
Titrimetry at a metrological level
Metrologia, 2003In the 1990s the CCQM (Comite consultatif pour la quantite de la matiere) defined the term 'primary method'. It also identified some methods that are considered to be primary. One of these methods is titrimetry. In this paper, the principle of titrimetry and two practical examples performed at the highest metrological level in the frame of key ...
Helene Felber +2 more
openaire +1 more source
Titrimetry with solid titrants
Mikrochimica Acta, 1968The technique of solid titrant titrimetry has been described and its advantages enumerated. Precision and time required have been determined to be comparable with those of conventional titrimetry. Investigations with solid titrants have been made of the photometric titrations of Cu with EDTA, Fe(II) with KMnO4, As(III) with KMnO4, and Fe(III) with ...
H. Flaschka, R. Weiss
openaire +1 more source
2014
Redox reactions play a major role in modern volumetric analysis and have found application in the analysis of many commercial products. In this chapter a summary of redox chemistry is presented which is contextualised by the following practical activities: standardisation of potassium permanganate; determination of iron in spinach; standardisation of ...
openaire +1 more source
Redox reactions play a major role in modern volumetric analysis and have found application in the analysis of many commercial products. In this chapter a summary of redox chemistry is presented which is contextualised by the following practical activities: standardisation of potassium permanganate; determination of iron in spinach; standardisation of ...
openaire +1 more source
2014
The application of coordination chemistry to volumetric analysis is a newer approach than the other major classes, largely because it is based on the use of synthetic polydentate ligands such as EDTA. In this chapter a summary of coordination chemistry is presented which is contextualised by the following practical activities: standardisation of EDTA ...
openaire +1 more source
The application of coordination chemistry to volumetric analysis is a newer approach than the other major classes, largely because it is based on the use of synthetic polydentate ligands such as EDTA. In this chapter a summary of coordination chemistry is presented which is contextualised by the following practical activities: standardisation of EDTA ...
openaire +1 more source
1973
Publisher Summary This chapter discusses the applications and the theory of thermal titrimetry. For thermal titrimetry, a concentrated reagent, B, is added to the material, A, at a constant rate. The heat change generated by the reaction is recorded as a function of time or concentration of B added.
Mario A Marini, Charles J Martin
openaire +1 more source
Publisher Summary This chapter discusses the applications and the theory of thermal titrimetry. For thermal titrimetry, a concentrated reagent, B, is added to the material, A, at a constant rate. The heat change generated by the reaction is recorded as a function of time or concentration of B added.
Mario A Marini, Charles J Martin
openaire +1 more source
2014
Since the mid-1950s, volumetric analysis has increasingly become a subject of automation, which ostensibly increases precision and accuracy in volumetric determinations. In this chapter we examine the principles of potentiometric, conductometric, coulometric and non-aqueous titrimetry, which are then contextualised by the following practical activities:
openaire +1 more source
Since the mid-1950s, volumetric analysis has increasingly become a subject of automation, which ostensibly increases precision and accuracy in volumetric determinations. In this chapter we examine the principles of potentiometric, conductometric, coulometric and non-aqueous titrimetry, which are then contextualised by the following practical activities:
openaire +1 more source