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Research progress of polysaccharide detection methods in traditional Chinese medicine. [PDF]
Chin Herb MedZhang L, Wang X, Zhang J, Liu D, Bai G.
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Highly Accurate Nephelometric Titrimetry
Journal of Pharmaceutical Sciences, 2004To 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.
Tao Yi, Xiancheng Zhan, Chengrong Li
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, 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:
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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
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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
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Water Science and Technology, 2011 Based on the structure of the hybrid respirometer previously developed in our group, a novel implementation for titrimetry was developed, in which two pH electrodes were installed at the inlet and outlet of the measuring cell.
peili Lu, Daijun Zhang
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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
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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.
H. Bartels, P. Walser
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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
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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.
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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