TY - JOUR
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.
UR - http://www.scopus.com/inward/record.url?scp=85057465062&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1065/7/072037
DO - 10.1088/1742-6596/1065/7/072037
M3 - Conference article
AN - SCOPUS:85057465062
VL - 1065
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 7
M1 - 072037
T2 - 22nd World Congress of the International Measurement Confederation, IMEKO 2018
Y2 - 3 September 2018 through 6 September 2018
ER -