A new highly sensitive method （detection limit： 4.1 ag spofx, sample volume： 0.4 gL spot^·l） for the determination of trace Hg2^2＋ by catalytic solid substrate-room temperature phosphorimetry has been establ...A new highly sensitive method （detection limit： 4.1 ag spofx, sample volume： 0.4 gL spot^·l） for the determination of trace Hg2^2＋ by catalytic solid substrate-room temperature phosphorimetry has been established in this paper. This method has been successfully applied to determine trace Hg6^2＋ in water.展开更多
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 c...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. Ca(2+) and phenanthroline can form complex ion Ca(phen)3(2+), 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.展开更多
基金supported by Fujian Province Natural Science Foundation(No.C 0510028,D 0510027).
文摘A new highly sensitive method （detection limit： 4.1 ag spofx, sample volume： 0.4 gL spot^·l） for the determination of trace Hg2^2＋ by catalytic solid substrate-room temperature phosphorimetry has been established in this paper. This method has been successfully applied to determine trace Hg6^2＋ in water.
文摘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. Ca(2+) and phenanthroline can form complex ion Ca(phen)3(2+), 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.
