Results 191 to 200 of about 4,314 (243)

Square Wave Titrimetry

open access: closedAnalytical Chemistry, 1957
L. C. Hall, H. A. Laitinen
openaire   +3 more sources

Titrimetry at a metrological level [PDF]

open access: possibleMetrologia, 2003
In 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

A new approach to titrimetry

Fresenius' Zeitschrift für analytische Chemie, 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.
P. Walser, H. Bartels
openaire   +2 more sources

Highly Accurate Nephelometric Titrimetry

Journal of Pharmaceutical Sciences, 2004
To indicate the titration end-point of precipitation reaction by measuring the relative intensity of the scattered light in the titrate for use in pharmaceutical analysis.A visible light-emitting diode (LED) was used as a light source and a photodiode was used as the optical detector. Light on the detector creates an electric current through the diode.
Zhi-yi Li   +5 more
openaire   +3 more sources

Titrimetry with solid titrants

Mikrochimica Acta, 1968
The 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 ...
R. Weiss, H. Flaschka
openaire   +2 more sources

Technical facilities for automated titrimetry [PDF]

open access: possibleMeasurement Techniques, 1994
The state of the art in titrimetry is surveyed together with methods and means of automating it.
R. M. F. Salikhdzhanova, B. M. Mar'yanov
openaire   +1 more source

Solid based titrimetry

Analytica Chimica Acta, 1996
Abstract A solid based titrimetric method is introduced in which a solid titrant is poured to a solution by a vibrating spatula fixed to the pan of a balance. The spatula, the balance, and the responses of the detector are measured and controlled by a personal computer.
Zahra Ramezani   +2 more
openaire   +2 more sources

Determination of insoluble azides by thermometric titrimetry

Talanta, 1977
A method for determination of azide, based on the thermometric titration of this anion with hydrochloric acid, is described. Although this reaction has a large enthalpy change (DeltaH = -3.6 kcal/ mole), sulphate is added as an endothermic thermometric indicator to improve the end-point. The application of the method to the analysis of insoluble azides
J.L.M. Costa   +2 more
openaire   +3 more sources

Determination of potassium by titrimetry

Talanta, 1966
Epp'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   +3 more sources

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