Investigation of europium(III)-doped ZnS for immunoassay<xref rid="cpb_27_2_027803fn1" ref-type="fn">*</xref><fn id="cpb_27_2_027803fn1"><label>*</label><p>Project supported by the National Natural Science Foundation of China (Grant No. 61205193), the Project of Science and Technology of Jilin Province, China (Grant No. 20140520107JH), the Technology Foundation of Jilin Provincial Department of Human Resources and Social Security, China (Grant No. RL201306), and the Science Foundation for Young Scientists of Changchun University of Science and Technology, China (Grant No. XQNJJ-2015-03).</p></fn>

Investigation of europium(III)-doped ZnS for immunoassay**

Project supported by the National Natural Science Foundation of China (Grant No. 61205193), the Project of Science and Technology of Jilin Province, China (Grant No. 20140520107JH), the Technology Foundation of Jilin Provincial Department of Human Resources and Social Security, China (Grant No. RL201306), and the Science Foundation for Young Scientists of Changchun University of Science and Technology, China (Grant No. XQNJJ-2015-03).

Zhu Chao-Fan¹, Sha Xue¹, Chu Xue-Ying^{1, †}, Li Jin-Hua¹, Xu Ming-Ze¹, Jin Fang-Jun¹, Xu Zhi-Kun²

(color online) XPS spectrum of ZnS:Eu (4%): (a) XPS survey spectrum; (b) Eu 3d XPS spectrum.