Salinity determinations by refractometry and oscillation-type densimetry as compatible methods: from salinity to pH

A. Napoleão; A. Furtado; J. Pereira; R. Quendera; O. Pellegrino; M. T. Cidade; C. R. Oliveira

doi:10.1088/1742-6596/1065/7/072037

Salinity determinations by refractometry and oscillation-type densimetry as compatible methods: from salinity to pH

A. Napoleão, A. Furtado, J. Pereira, R. Quendera, O. Pellegrino, M. T. Cidade, C. R. Oliveira

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Abstract

The purpose of the present communication is to study the metrological compatibility of measurement results of mass fractions of sodium chloride in aqueous solutions, by different analytical techniques: refractometry and oscillation-type densimetry. In complement pH measurements were made in solutions of NaCl of 3,5 cg g ^-1 and in a synthetic seawater standard (OSIL). Previously, metrological compatibility of measurement results with refractometer and oscillation-type density meter was showed for aqueous solutions of glucose, from 2 cg g ^-1 to 42 cg g ^-1 . Due to its interest for the food science and health science, sodium chloride mass fraction in aqueous solution between 0,5 cg g ^-1 and 7 cg g ^-1 and for brine systems were also measured. Comparison was displayed between potentiometric pH and pH deduced by salinity experimental value.

Original language	English
Article number	072037
Journal	Journal Of Physics: Conference Series
Volume	1065
Issue number	7
DOIs	https://doi.org/10.1088/1742-6596/1065/7/072037
Publication status	Published - 13 Nov 2018
Event	22nd World Congress of the International Measurement Confederation, IMEKO 2018 - Belfast, United Kingdom Duration: 3 Sep 2018 → 6 Sep 2018

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10.1088/1742-6596/1065/7/072037Licence: CC BY

Salinity_determinations_by_refractometry_and_oscilFinal published version, 1.04 MBLicence: CC BY

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title = "Salinity determinations by refractometry and oscillation-type densimetry as compatible methods: from salinity to pH",

abstract = " The purpose of the present communication is to study the metrological compatibility of measurement results of mass fractions of sodium chloride in aqueous solutions, by different analytical techniques: refractometry and oscillation-type densimetry. In complement pH measurements were made in solutions of NaCl of 3,5 cg g -1 and in a synthetic seawater standard (OSIL). Previously, metrological compatibility of measurement results with refractometer and oscillation-type density meter was showed for aqueous solutions of glucose, from 2 cg g -1 to 42 cg g -1 . Due to its interest for the food science and health science, sodium chloride mass fraction in aqueous solution between 0,5 cg g -1 and 7 cg g -1 and for brine systems were also measured. Comparison was displayed between potentiometric pH and pH deduced by salinity experimental value. ",

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T1 - Salinity determinations by refractometry and oscillation-type densimetry as compatible methods: from salinity to pH

AU - Napoleão, A.

AU - Furtado, A.

AU - Pereira, J.

AU - Quendera, R.

AU - Pellegrino, O.

AU - Cidade, M. T.

AU - Oliveira, C. R.

PY - 2018/11/13

Y1 - 2018/11/13

N2 - The purpose of the present communication is to study the metrological compatibility of measurement results of mass fractions of sodium chloride in aqueous solutions, by different analytical techniques: refractometry and oscillation-type densimetry. In complement pH measurements were made in solutions of NaCl of 3,5 cg g -1 and in a synthetic seawater standard (OSIL). Previously, metrological compatibility of measurement results with refractometer and oscillation-type density meter was showed for aqueous solutions of glucose, from 2 cg g -1 to 42 cg g -1 . Due to its interest for the food science and health science, sodium chloride mass fraction in aqueous solution between 0,5 cg g -1 and 7 cg g -1 and for brine systems were also measured. Comparison was displayed between potentiometric pH and pH deduced by salinity experimental value.

AB - The purpose of the present communication is to study the metrological compatibility of measurement results of mass fractions of sodium chloride in aqueous solutions, by different analytical techniques: refractometry and oscillation-type densimetry. In complement pH measurements were made in solutions of NaCl of 3,5 cg g -1 and in a synthetic seawater standard (OSIL). Previously, metrological compatibility of measurement results with refractometer and oscillation-type density meter was showed for aqueous solutions of glucose, from 2 cg g -1 to 42 cg g -1 . Due to its interest for the food science and health science, sodium chloride mass fraction in aqueous solution between 0,5 cg g -1 and 7 cg g -1 and for brine systems were also measured. Comparison was displayed between potentiometric pH and pH deduced by salinity experimental value.

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