【摘要】：為了解我國市售超高溫滅菌(UHT)牛奶中微量元素含量及不同品牌間差異,從我國17個城市超市采集了29個國產(chǎn)品牌的96批次UHT牛奶及28個進口品牌的53批次UHT牛奶,分析了17種微量元素的含量,并比較了國產(chǎn)品牌與進口品牌UHT牛奶中微量元素含量差異。實驗采用微波消解前處理和電感耦合等離子體質(zhì)譜(ICP-MS)法測定牛奶中17種微量元素含量,加標(biāo)回收率為90.9%~109.6%。分析結(jié)果表明,國產(chǎn)品牌和進口品牌UHT牛奶中元素釩(V)、鉻(Cr)、鈷(Co)、鎳(Ni)、鎵(Ga)、銀(Ag)、鉈(Tl)、鈾(U)檢出率分別為2.08%~88.54%和1.89%~92.45%,錳(Mn)、鐵(Fe)、銅(Cu)、鋅(Zn)、硒(Se)、銣(Rb)、鍶(Sr)、銫(Cs)、鋇(Ba)檢出率均為100.00%;國產(chǎn)品牌與進口品牌UHT牛奶中元素Cu、Zn、Se、Ni和Sr含量差異顯著(P0.05),V、Cr、Mn、Fe、Co、Ga、Rb、Ag、Cs、Ba、Tl和U含量差異不顯著(P0.05)。
[Abstract]:In order to understand the content of trace elements in ultra-high temperature sterilized (UHT) milk and the differences among different brands, 96 batches of UHT milk from 29 domestic brands and 53 batches of UHT milk from 28 imported brands were collected from 17 supermarkets in 17 cities of China. The contents of 17 trace elements were analyzed and the differences of trace elements in UHT milk between domestic brands and imported brands were compared. The method of microwave digestion and inductively coupled plasma mass spectrometry (ICP-MS) was used to determine the contents of 17 trace elements in milk. The results showed that vanadium, (V), chromium, (Cr), cobalt, (Co), (Ni), gallium, (Ga), silver, (Ag), and thallium (Tl), were found in domestic and imported brands of UHT milk. The detectable rate of uranium (U) was 88.54% and 1.89%, respectively. Manganese, (Mn), iron, (Fe), copper, (Cu), zinc, (Zn), (Se), (Rb), strontium, (Sr), cesium, (Cs),. The detectable rate of barium (Ba) was 100.00000. The contents of Cu,Zn,Se,Ni and Sr in UHT milk were significantly different between domestic brands and imported brands (P0.05), but there was no significant difference in the contents of Cu,Zn,Se,Ni and U between domestic brands and imported brands (P0.05).
【作者單位】： 甘肅農(nóng)業(yè)大學(xué)動物科學(xué)技術(shù)學(xué)院;中國農(nóng)業(yè)科學(xué)院北京畜牧獸醫(yī)研究所農(nóng)業(yè)部奶產(chǎn)品質(zhì)量安全風(fēng)險評估實驗室(北京)動物營養(yǎng)學(xué)國家重點實驗室;唐山市畜牧水產(chǎn)品質(zhì)量監(jiān)測中心;秦皇島市昌黎縣畜牧發(fā)展局;
【基金】：公益性行業(yè)(農(nóng)業(yè))基本科研業(yè)務(wù)費專項(201403071) 農(nóng)業(yè)部生鮮乳質(zhì)量安全風(fēng)險評估專項(2014-z3) 現(xiàn)代農(nóng)業(yè)產(chǎn)業(yè)技術(shù)體系專項(nycytx-04-01) 中國農(nóng)業(yè)科學(xué)院科技創(chuàng)新工程項目(ASTIP-IAS12)資助
【分類號】：TS252.7

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