A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Electrostatic measurements on lactose-glucose mixtures
Tekijät: Murtomaa M, Laine E
Kustantaja: ELSEVIER SCIENCE BV
Julkaisuvuosi: 2000
Lehti: Journal of Electrostatics
Tietokannassa oleva lehden nimi: JOURNAL OF ELECTROSTATICS
Lehden akronyymi: J ELECTROSTAT
Vuosikerta: 48
Numero: 2
Aloitussivu: 155
Lopetussivu: 162
Sivujen määrä: 8
ISSN: 0304-3886
DOI: https://doi.org/10.1016/S0304-3886(99)00063-7
Tiivistelmä
This paper presents the results of an experimental study on electrostatic behavior of lactose and glucose which are commonly used in the pharmaceutical industry as additives. Resistivities and frictional charging of samples with different proportions of lactose and glucose were measured. Powder samples were charged by sliding them down into the Faraday's cup via a pipe. Resistivity was found to follow a linear relationship with the concentration but the nature of frictional charging changed considerably when mixtures were charged instead of pure additives. Both pure additives charged positively when slid into the Faraday's cup via a glass pipe but some mixtures became negatively charged due to powder-powder contacts within the flow and near the pipe surface. (C) 2000 Elsevier Science B.V. All rights reserved.
This paper presents the results of an experimental study on electrostatic behavior of lactose and glucose which are commonly used in the pharmaceutical industry as additives. Resistivities and frictional charging of samples with different proportions of lactose and glucose were measured. Powder samples were charged by sliding them down into the Faraday's cup via a pipe. Resistivity was found to follow a linear relationship with the concentration but the nature of frictional charging changed considerably when mixtures were charged instead of pure additives. Both pure additives charged positively when slid into the Faraday's cup via a glass pipe but some mixtures became negatively charged due to powder-powder contacts within the flow and near the pipe surface. (C) 2000 Elsevier Science B.V. All rights reserved.
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