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KMID : 0665220160290010027
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Korean Journal of Food and Nutrition
2016 Volume.29 No. 1 p.27 ~ p.32
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Verification of Utility of Simple Mensuration of Cl- from Urine to Estimate the Amount of Sodium Intake
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Lee Sung-Ho
Lee Chae-Joon
Ju Sung-Mi
Lee Hyun-Joo
Ra Wang-Yeon
Kim Soon-Ok
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Abstract
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The purpose of this study was to measure concentrations of K+, Na+, Cl－ by ionometer with check salt strip, simple
salimeter and Ion-selective electrode (ISE) and compare the results of each mensuration; furthermore, the possibility of
inferring the Na+ concentration from Cl－ concentration of urine and the impact of K+ on the concentration of each ion
was examined. The results showed that ISE determined Na+ and Cl－ concentrations in the urine are highly interrelated
(R=0.9039); in addition, concentrations of Cl－, measured with strip and ISE from urine are highly interrelated (R=0.9338).
The concentration of Na+ in urine, inferred by measuring Cl－ concentration with strip, has a high relationship (R=0.8580)
with the concentration of Na+ in urine, measured by ISE. The results of our study will increase awareness of Na+ intake and the utility of check salt strip, as well as the possibility of inferred Na+ concentration from measures of Cl－ concentration as a screening test for reducing sodium intake.
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KEYWORD
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salt strip, ISE, sodium excretion
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