A new online pre-concentration system using hydride generation atomic fluorescence spectrometry (HG AFS) for zinc determination in mineral water and isotonic sports drinks

Abstract

Mineral water and isotonic sports drinks (hydroelectrolytic supplement) are sources of electrolytes, and one among them is zinc, an important microelement for several functions of the body.

Comparison of Natural Mineral Water From Agrı Province With Sports Drinks

“…Immunological pressure may escalate during prolonged high-intensity exercise (Chu et al, 2016;Skrypnik et al, 2019). In our study, it was seen that the zinc content (0.02457 ppm) in the local mineral water is similar to the sports drinks in the market (0.03 ±0.09) (Pitta da Costa et al, 2020).…”

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…A method for the determination of Zn by HG-AFS , following pre-concentration by SPE, has been developed 95 and applied to the analysis of mineral waters and isotonic sports drinks. The sample pH was adjusted to 8 with a carbonate/bicarbonate buffer, and the Zn retained on a polyurethane column preloaded with PAR.…”

“…da Costa et al 95 utilised SPE and HG-AFS to determine Zn in mineral waters and isotonic drinks . Samples were pH adjusted to 8.0 with NaOH and buffered with Na 2 CO 3 solutions, giving a sample dilution of 2.5-fold for waters and 5-fold for isotonic drinks.…”

Sensitive determination of chromium by inductively coupled plasma mass spectrometry using chelate-enhanced nebulized film dielectric barrier discharge vapor generation

“…Chemical vapor generation (CVG), especially hydride generation (HG) with Na(K)BH 4 , is adopted as an alternative sample introduction technique to pneumatic nebulization for atomic and mass spectrometry. 5,6 Non-volatile metal ions such as Zn 2+ , Pb 2+ , and Hg 2+ in solution can be easily transformed into volatile gaseous hydride or atomic vapor through the HG process reacted with Na(K)BH 4 , [7][8][9] which not only greatly increases the sample introduction efficiency, but also signicantly reduces the matrix interferences. However, the volatile species of chromium was very difficult to form by the HG process with Na(K)BH 4 , as its vapor generation efficiency did not exceed 0.23%.…”