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首页> 外文期刊>Food additives & contaminants >Tin and mercury and their speciation (organotin compounds and methylmercury) in worldwide red wine samples determined by ICP-MS and GC-ICP-MS
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Tin and mercury and their speciation (organotin compounds and methylmercury) in worldwide red wine samples determined by ICP-MS and GC-ICP-MS

机译：锡和汞及其物种（有机锡化合物和甲基汞）在全球红葡聚糖样品中由ICP-MS和GC-ICP-MS确定

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摘要

One hundred and twenty-two red wines were analysed for their total tin, total mercury and speciation concentrations. Total Sn and Hg concentrations were in average 4.4 ± 7.2 μg/L and 0.22 ± 0.12 μg/L, respectively. Two GC-ICP-MS methods were developed and validated for speciation purposes: one to measure organotin compounds (OTCs) with internal standard correction; the other, to evaluate methylmercury (MeHg~+) by isotopic dilution. Methyltins (mainly dimethyltin, but also monomethyltin) were the most abundant OTCs recovered. Methylation seems to occur biotically during the wine making process and not during the bottling time. Therefore, it also seems to be roughly dependent on the geographical origin of the wine. For higher OTCs, monobutyltin was the most regularly found, but dibutyltin and monooctyltin were also detected sometimes. MeHg~+ was not recovered in any of the samples investigated, probably due to the low level of Hg. These results suggest that, in terms of these parameters, normal consumption of wine is not a hazard for human health.
机译：分析了一百二十二红葡萄酒，以获得总锡，总汞和物质浓度。总Sn和Hg浓度平均为4.4±7.2μg/ L和0.22±0.12μg/ L.开发并验证了两个GC-ICP-MS方法，以进行物种目的：一种测量有机锡化合物（OTC），具有内部标准校正;另一个，通过同位素稀释来评估甲基汞（MEHG〜+）。甲基汀（主要是二甲基锡，也是单甲基锡）是最丰富的OTCS回收。甲基化似乎在葡萄酒制造过程中生物发育过程而不是在装瓶时间内发生。因此，它似乎也大致依赖于葡萄酒的地理来源。对于较高的OTCs，单丁基蛋白是最常发现的，但有时也检测到二丁基锡和单辛基锡。在任何调查的样本中未恢复Mehg〜+，可能是由于低水平的Hg水平。这些结果表明，就这些参数而言，葡萄酒的正常消耗不是人类健康的危害。

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