scholarly journals Comparison of mineral content of bottled spring and mineral waters marketed in Turkey

2021 ◽  
Vol 9 (8) ◽  
pp. 1567-1572
Author(s):  
Şeref Turhan ◽  
Aslı Kurnaz ◽  
Aybaba Hançerlioğulları
Keyword(s):  
Inductively Coupled Plasma ◽  
Mineral Water ◽  
Tap Water ◽  
Optical Emission ◽  
Mineral Waters ◽  
Emission Spectrometry ◽  
Continuous Growth ◽  
Inductively Coupled ◽  
Drinking Waters ◽  
Natural Spring

Drinking water is the most indispensable substance for humans. Bottled drinking waters are preferred over tap water with the belief that they are more nutritious, better quality, more delicious and safe in terms of health. Therefore, the Turkish bottled (spring and mineral) water market has experienced a continuous growth since 2003, as in the whole world. This study focuses on comparing the common mineral cation calcium (Ca2+), magnesium (Mg2+) and sodium (Na+) content of twenty one popular bottled spring and mineral water brands marketed in Turkey by using an inductively coupled plasma optical emission spectrometry (ICP-OES). The average concentrations of Ca, Mg and Na analyzed in bottled spring and mineral water samples were found as 14.9, 24.1 and 8.2 mg/L and 147.9, 44.3 and 117.3 mg/L, respectively. This comparison confirms that bottled natural mineral water has better quality in terms of major nutrient minerals than bottled natural spring waters.

scholarly journals Lithium in Portuguese Bottled Natural Mineral Waters—Potential for Health Benefits?

2020 ◽  
Vol 17 (22) ◽  
pp. 8369
Author(s):  
Maria Orquídia Neves ◽  
José Marques ◽  
Hans G.M. Eggenkamp
Keyword(s):  
Drinking Water ◽  
Inductively Coupled Plasma ◽  
Mineral Water ◽  
Tap Water ◽  
Health Benefits ◽  
Epidemiological Studies ◽  
Mineral Waters ◽  
Natural Mineral ◽  
Natural Mineral Water ◽  
Inductively Coupled

There is increasing epidemiologic and experimental evidence that lithium (Li) exhibits significant health benefits, even at concentrations lower than the therapeutic oral doses prescribed as treatment for mental disorders. The aim of this study is to determine the content of Li in 18 brands of bottled natural mineral waters that are available on the Portuguese market and from which the sources are found within the Portuguese territory, to provide data for Li intake from drinking water. Analyses of Li were performed by inductively coupled plasma-mass spectrometry. The results indicate highly different Li concentrations in natural mineral waters: one group with low Li concentrations (up to 11 µg Li/L) and a second group with Li concentrations higher than 100 µg/L. The highest Li concentrations (>1500 µg Li/L) were observed in the highly mineralized Na-HCO3 type waters that are naturally carbonated (>250 mg/L free CO2). As a highly bioavailable source for Li dietary intake these natural mineral waters have potential for Li health benefits but should be consumed in a controlled manner due to its Na and F− contents. The consumption of as little as 0.25 L/day of Vidago natural mineral water (2220 µg Li/L), can contribute up to 50% of the proposed daily requirement of 1 mg Li/day for an adult (70 kg body weight). In future, Li epidemiological studies that concern the potential Li effect or health benefits from Li in drinking water should consider not only the Li intake from tap water but also intake from natural mineral water that is consumed in order to adjust the Li intake of the subjects.

scholarly journals On-Line Separation and Determination of Trivalent and Hexavalent Chromium with a New Liquid Membrane Annular Contactor Coupled to Inductively Coupled Plasma Optical Emission Spectrometry

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 536
Author(s):  
Maria Luisa Astolfi ◽  
Domenico Ginese ◽  
Riccardo Ferrante ◽  
Elisabetta Marconi ◽  
Anna Maria Girelli ◽  
...  
Keyword(s):  
Hexavalent Chromium ◽  
Inductively Coupled Plasma ◽  
Liquid Membrane ◽  
Tap Water ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
On Line ◽  
Line Separation

We describe a new on-line sensitive and selective procedure for the determination of trivalent and hexavalent chromium in liquid samples by a tailor-made contactor (TMC), specifically a liquid membrane annular TMC, coupled with inductively coupled plasma with optical detection. The TMC was designed and developed to integrate the extraction and stripping phases of the analyte in one module to minimize the membrane solvent’s consumption and maximize the speed of transport through the liquid membrane. Moreover, the particular geometry studied, which consists of two coaxial hollow fibers, allows the TMC to be used for both separating and preconcentrating purposes. Both (−)-N-dodecyl-N-methylephedrinium bromide (30 mM) in dichloroethane and HNO3 (0.75 M) were used as the liquid membrane and receiving solution, respectively. The proposed method’s performance was evaluated in terms of the hexavalent chromium extraction efficiency and the coefficient of variation percentages; these were higher than 85% and less than 5%, respectively. In addition, the proposed procedure was applied to two real samples: a tap water sample and an eluate from solid urban waste. In both cases, the analytical performances were good and comparable to those obtained using synthetic standard solutions.

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