1. Shandong Province Key Laboratory of Detection Technology for Tumor Makers
2. School of Chemistry and Chemical Engineering
3. Linyi University
4. Linyi 276000
5. P. R. China
6. College of Chemistry and Chemical Engineering
7. Qingdao University
8. Qingdao 266071
9. Key Laboratory of Sensor Analysis of Tumor Marker Ministry of Education
10. College of Chemistry and Molecular Engineering
11. Qingdao University of Science and Technology
12. Qingdao 266042