引用本文:
Jia Ming Liu, Tian Long Yang, Xiao Mei Huang, Xiu Mei Shi, Zhong Bin Shi, Hong Wu, Guo Hui Zhu, Zhi Ming Li, Cui Lian Chen. Determination of trace calcium by solid substrate-room temperature phosphorimetry[J]. Chinese Chemical Letters,
2007, 18(2): 195-197.
doi:
10.1016/j.cclet.2006.12.016
Citation: Jia Ming Liu, Tian Long Yang, Xiao Mei Huang, Xiu Mei Shi, Zhong Bin Shi, Hong Wu, Guo Hui Zhu, Zhi Ming Li, Cui Lian Chen. Determination of trace calcium by solid substrate-room temperature phosphorimetry[J]. Chinese Chemical Letters, 2007, 18(2): 195-197. doi: 10.1016/j.cclet.2006.12.016
Citation: Jia Ming Liu, Tian Long Yang, Xiao Mei Huang, Xiu Mei Shi, Zhong Bin Shi, Hong Wu, Guo Hui Zhu, Zhi Ming Li, Cui Lian Chen. Determination of trace calcium by solid substrate-room temperature phosphorimetry[J]. Chinese Chemical Letters, 2007, 18(2): 195-197. doi: 10.1016/j.cclet.2006.12.016
Determination of trace calcium by solid substrate-room temperature phosphorimetry
摘要:
A new method for the determination of trace calcium by solid substrate-room temperature phosphorimetry is established. It is based on the fact that chromeazurols azurol S-phenanthroline-NaCMC (CAS-phen-NaCMC) system can emit strong and stable room temperature phosphorescence (RTP) on the solid substrate in the filter paper. Ca2+ and phenanthroline can form complex ion Ca(phen)32+, which will form complex [Ca(phen)3(CAS)2] with CAS. In the result, the number of CAS molecules in each spot increased, causing sharp increase of the RTP signal of the CAS-phen-NaCMC system.
English
Determination of trace calcium by solid substrate-room temperature phosphorimetry
Abstract:
A new method for the determination of trace calcium by solid substrate-room temperature phosphorimetry is established. It is based on the fact that chromeazurols azurol S-phenanthroline-NaCMC (CAS-phen-NaCMC) system can emit strong and stable room temperature phosphorescence (RTP) on the solid substrate in the filter paper. Ca2+ and phenanthroline can form complex ion Ca(phen)32+, which will form complex [Ca(phen)3(CAS)2] with CAS. In the result, the number of CAS molecules in each spot increased, causing sharp increase of the RTP signal of the CAS-phen-NaCMC system.
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