Tariba and colleagues measured lead in Croatian red and white wines by graphite furnace atomic absorption spectrometry. Commercial and home-made medians mix red and white and are not assigned to white wine. Only Table 2 white rows are used. The unit column prints μg L-1. This note writes µg/L for those numerals.
Key numbers
Means of four measurements, µg/L.
| Color row | Place and cultivar | Year | Lead (µg/L) |
|---|---|---|---|
| Commercial dry white | Istria Malvasia | 2008 | 49 ± 1 |
| Commercial dry white | Istria Malvasia | 2009 | 40 ± 1 |
| Commercial dry white | Dakovo Riesling | 2007 | 22 ± 1 |
| Commercial dry white | Kutjevo Riesling | 2008 | 21 ± 2 |
| Commercial dry white | Srijem Chardonnay | 2007 | 36 ± 1 |
| Home-made dry white | Istria Malvasia | 2009 | 51 ± 1 |
| Home-made dry white | Rab mix | 2009 | 276 ± 2 |
| Home-made dry white | Kalnik Semillon | 2009 | 14 ± 2 |
| Home-made dry white | Trema Riesling and Silvaner | 2009 | 17 ± 1 |
| Home-made dry white | Donje Krizevcine Riesling and Kraljevina | 2009 | 16 ± 1 |
| Home-made dry white | Varazdin mix | 2009 | 19 ± 0.5 |
Detection limit 3 µg/L. Mean recovery 114% for white wine and 106% for red wine. No certified reference material was available. Cadmium, arsenic, mercury, nickel, aluminum, chromium, and tin were not measured.
Methods (brief)
Wine was diluted 1:1 and measured by GFAAS with Zeeman background correction.
Evidence fitness
These eleven rows support a white-wine lead note, with home-made rows labeled as home-made. They do not support other metals.
Limitations
Lead only. The study medians are not white-only.
Related evidence
Update history
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