本文選題：電感耦合等離子體質(zhì)譜　切入點(diǎn)：基體匹配　出處：《中國(guó)食品學(xué)報(bào)》2017年05期 　論文類型：期刊論文

【摘要】：采用電感耦合等離子體質(zhì)譜儀(ICP-MS)通過基體匹配、在線內(nèi)標(biāo)校正以及直接進(jìn)樣,建立白酒中As、Cd、Pb、Mn、V、Cr、Fe、Co、Ni、Cu、Zn、Se、Rb、Sr、Ag、Cs、La、Pr、Nd、Sm、Eu、Gd、Tl、U 24種金屬元素含量的測(cè)定方法。該方法線性范圍0~100μg/L,檢出限0.0001~0.2189μg/L,除Zn和Ag的加標(biāo)回收率分別為76.5%和69.4%外,其余22種金屬元素的加標(biāo)回收率為93.8%~109.8%;空白加標(biāo)的相對(duì)標(biāo)準(zhǔn)偏差除Fe為5.66%外,其余23種元素的相對(duì)標(biāo)準(zhǔn)偏差均在5%以下(n=6)。分別采用白酒直接進(jìn)樣和消解后進(jìn)樣,24種金屬元素含量測(cè)定結(jié)果無(wú)顯著差異,表明直接進(jìn)樣法可作為測(cè)定白酒中金屬元素含量的一種快速、環(huán)保、便捷的方法。
[Abstract]:The inductively coupled plasma mass spectrometer (ICP-MS) was used to calibrate the internal standard and sample directly through matrix matching. A method was established for the determination of 24 metal elements of Ascdcdcu PbMN (PbPbMN) in liquor. The linear range of the method was 0 100 渭 g / L, and the detection limit was 0.0001g / L 0.2189 渭 g / L, with recoveries of 76.5% and 69.4%, respectively, except for Zn and Ag, the recoveries of Zn and Ag were 76.5% and 69.4%, respectively, with a linear range of 0.100 渭 g / L, and the detection limit of 0.0001g / L was 0.2189 渭 g / L, and the recoveries of Zn and Ag were 76.5% and 69.4%, respectively, with a linear range of 0.100 渭 g / L, and the detection limit was 0.2189 渭 g / L. The recoveries of the remaining 22 metal elements were 93.8% and 109.8% respectively. The relative standard deviation (RSD) of blank and standard was 5.66% except Fe. The relative standard deviations of the remaining 23 elements were all below 5%. There was no significant difference in the contents of 24 kinds of metal elements in liquor sample directly and after digestion. The results showed that the direct sampling method could be used as a rapid, environmentally friendly and convenient method for the determination of metal elements in liquor.
【作者單位】： 北京工商大學(xué)北京食品營(yíng)養(yǎng)與人類健康高精尖創(chuàng)新中心;北京工商大學(xué)食品質(zhì)量與安全北京實(shí)驗(yàn)室;賽默飛世爾科技(中國(guó))有限公司;
【基金】：國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2016YFD0400501) 國(guó)家自然科學(xué)基金項(xiàng)目(31301466) 北京市教委科技計(jì)劃重點(diǎn)項(xiàng)目(KZ201410011015)
【分類號(hào)】：O657.63;TS262.3

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