Selective and precise photometric titration of metal ions with EDTA using masking agents. Part III. Determination of calcium, lead and zinc in mixtures using simple inorganic ions as masks

The Analyst ◽  
1987 ◽  
Vol 112 (12) ◽  
pp. 1731
Author(s):  
Colin G. Halliday ◽  
Michael A. Leonard
Keyword(s):  
Metal Ions ◽  
Inorganic Ions ◽  
Lead And Zinc ◽  
Photometric Titration ◽  
Masking Agents ◽  
Calcium Lead

Recognition and determination of multi-metal ions based on silver nanoclusters capped by polyethyleneimine with different molecular weights

2015 ◽  
Vol 39 (12) ◽  
pp. 9293-9298 ◽  
Author(s):  
Fei Qu ◽  
Qianqian Zhang ◽  
Jinmao You
Keyword(s):  
Metal Ions ◽  
Silver Nanoclusters ◽  
Molecular Weights ◽  
Masking Agents ◽  
Ag Nanoclusters

Utilizing suitable masking agents, the fluorescence of Ag nanoclusters, quenched from adding Hg2+, Cu2+, Co2+, and Ni2+, could be restored.

Selectivity coefficients of some simple and complex inorganic ions for Spheron DEAE

1984 ◽  
Vol 49 (10) ◽  
pp. 2349-2354 ◽  
Author(s):  
František Vláčil ◽  
Karel Koňák
Keyword(s):  
Ion Exchange ◽  
Mobile Phase ◽  
Dynamic Method ◽  
Precious Metals ◽  
Inorganic Ions ◽  
Chromatographic Determination ◽  
Chloride Ions ◽  
Chloro Complexes ◽  
Selectivity Coefficients

The selectivity coefficients of the nitrate and chloride ions and of anionic chloro complexes of Au(III), Rh(III), Pd(II), and Pt(IV) for ion exchange on Spheron DEAE in the chloride form are determined by the dynamic method. the complex anion species formed are identified and the ion exchange nature of the sorption of precious metals on this sorbent is confirmed based on the elution order of the precious metals as determined previously by the column chromatography on Spheron DEAE using hydrochloric acid as the mobile phase. The effect of the presence of perchlorate in the mobile phase during the liquid chromatography of precious metals and during the chromatographic determination of nitrate traces is explained.

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