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紫外消解-伏安極譜法檢測葡萄酒中殘留的痕量鉑和銠元素

孫煥*發展邏輯，李濤凝聚力量，陶玲

瑞士萬通中國有限公司中心實驗室，北京聽得進，10085

[email protected]

葡萄酒中鉑和銠的主要來源為：葡萄種植中土壤和果園周圍汽車尾氣中以及生產(chǎn)中酒與容器新的力量、酒泵、管路接觸時從不銹鋼材質(zhì)溶解出的痕量金屬便利性。這些重金屬離子的存在全面展示，會影響葡萄酒的穩(wěn)定性和口感。經(jīng)紫外消解處理后的樣品緊迫性，鉑和銠元素采用吸附溶出伏安極譜儀的懸汞模式（HMDE）結構，標(biāo)準(zhǔn)加入法檢測，鉑和銠這兩種元素的檢出限均能達(dá)到5ng/L高效。本研究開辟了在食品分析領(lǐng)域中電化學(xué)方法檢測食品中超痕量重金屬殘留的新途徑溝通協調。

關(guān)鍵詞：鉑；銠體系；葡萄酒保障性；伏安極譜法；紫外消解

Determination of Ultra-trace Pt and Rh in wine after UV digestion by Voltammetric polarography

Huan Sun*, Tao Li, Ling Tao

Cclab of Metrohm Chian, Beijing, 10085

[email protected]

These heavy metallic elements such as Pt and Rh mainly come from the soil and the auto exhaust during planting , the metal in containers, wine pump, and pipes during wine manufacturing. Pt and Rh can influence the stability and taste of wine. After UV digestion, Ultra-trace Pt and Rh were determined with adsorptive stripping voltammetry (AdSV) at HMDE. The minimum detectable quantity of  Pt and Rh reach 5 ng/L both via standard addition method. We find a new electrochemical approach to determine Ultra-trace Pt and Rh in food analysis field.

Key words：Pt , Rh, wine, VA, UV digestion