Overview
Santos and colleagues analysed 27 bottled mineral waters from Curitiba markets for physicochemical parameters, ions and 17 elements, and compared results with Brazilian legislation and label claims. Table 6 prints each sample’s triplicate mean ± SD. Cadmium, mercury, nickel, lead and copper were below their limits of quantitation in every sample.
Key numbers
- Lead below 1.0 µg/L, cadmium below 1.0 µg/L and mercury below 0.2 µg/L in all 27 samples (Table 6, p. 11).
- Arsenic quantified in five samples, 1.1 to 6.1 µg/L, the highest (6.1 ± 0.2 µg/L) in an imported sample from France (Table 6, p. 11; Abstract).
- Antimony 2.3 ± 0.2 and 1.0 ± 0.1 µg/L in two samples; barium up to 386 ± 5 µg/L (sample 22, Minas Gerais) (Table 6, p. 11).
Methods (brief)
Samples acidified to 1% nitric acid; aluminium, barium, cadmium, chromium, copper, iron, manganese, nickel and zinc by ICP OES; mercury by cold vapor generation ICP OES; arsenic, lead, antimony and selenium by ICP-MS. LOQs 0.2 to 10 µg/L (Table 4). Quality control solutions and spikes recovered 90 to 111%.
Evidence Fitness
Good per-sample data with stated LOQs and QA, but plain mineral water: a proxy for flavored-carbonated-bottled-waters, so that page is not linked. Sample origin per number is taken from the text. A few barium and manganese values are printed below the stated LOQ. Per-litre units.
Related evidence
- Mineral water
- Bottled drinking water (purified, spring, artesian)
- Arsenic
- Health risk assessment of heavy metals and physicochemical parameters in natural mineral bottled drinking water using ICP-MS in South Africa
Update history
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