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木虫 (小有名气)

[求助] 请问 哪里可以测试上转换材料中稀土离子的浓度 已有1人参与

求助
  如题,求推荐可以很快测试上转换材料中稀土离子浓度的单位,由于剩余样品量较少不到2g,所以在我们学校测不了只能外送。
  急~~~
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依稀夜梦

木虫 (正式写手)

【答案】应助回帖

直接测ICP就可以了啊,1 mg 就够了啊
1 mg of OA-capped β-NaYF4:20%Yb,2%Er UCNPs were dissolved in 278 μL of H2SO4 (98%) and 2
mL of HNO3 (68%). Afterwards, distilled water was added to a total volume of 10 mL. Concentrations
of yttrium, ytterbium, and erbium were determined using ICP-OES (Varian 710-ES)
浓度大概测出来100-300微摩尔每升左右吧。当然标准样要你自己配了
2楼2015-06-12 19:40:35
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依稀夜梦

木虫 (正式写手)

参考文献:ACS Appl. Mater. Interfaces----Compact, Programmable, and Stable Biofunctionalized Upconversion
Nanoparticles Prepared Through Peptide-Mediated Phase Transfer For
High-Sensitive Protease Sensing and In Vivo Apoptosis Imaging
3楼2015-06-12 19:42:24
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