Simultaneous ion-chromatography of alkali, alkaline earth and heavy metal ions with conductivity and indirect UV detection: Comparison of eluents containing organic complexing acids and copper sulfate

1990 ◽  
Vol 338 (2) ◽  
pp. 149-155 ◽  
Author(s):  
Daren Yan ◽  
Georg Schwedt
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Ion Chromatography ◽  
Copper Sulfate ◽  
Heavy Metal Ions ◽  
Alkaline Earth ◽  
Uv Detection ◽  
Indirect Uv Detection

Ion chromatography of alkaline earth and heavy metal ions by on-column derivatization with bisazochromotropic acid

1993 ◽  
Vol 657 (1) ◽  
pp. 87-93 ◽  
Author(s):  
Hiroko Wada ◽  
Muneyoshi Matsushita ◽  
Takashi Yasui ◽  
Akio Yuchi ◽  
Hiromichi Yamada ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Ion Chromatography ◽  
Heavy Metal Ions ◽  
Alkaline Earth

Simultaneous Removal of Heavy-Metal Ions by MnO2 Loaded D301 Resin

2011 ◽  
Vol 255-260 ◽  
pp. 2791-2796 ◽  
Author(s):  
Hong Mei Ma ◽  
Zhi Liang Zhu ◽  
Yong Qian Cheng
Keyword(s):  
Aqueous Solution ◽  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Alkaline Earth ◽  
Removal Rate ◽  
Alkaline Earth Metals ◽  
Simultaneous Removal ◽  
High Concentration ◽  
Solution Ph

MnO2-loaded D301 weak basic anion exchange resin was used as adsorbent to simultaneously remove Co2+, Ni2+, Cd2+, Zn2+ andCu2+ from aqueous solution contained high concentration of alkali and alkaline-earth metals ions. The effects of solution pH and coexistent ions on the adsorption were investigated. The results indicated that Co2+, Ni2+, Cd2+, Zn2+ andCu2+ can be simultaneously removed in the wide pH range of 3 to 8. The coexistence of PO43− decreased the heavy metal ions removal rate, but for other high concentrations coexistence cations and anions such as Na+, K+, Cl−, NO3−, SO42− and HCO3−, there is no significant impact on removal rate of heavy metals. The adsorption isotherm can be well described by Langmuir isotherm. The adsorption processes followed the pseudo first-order kinetics model. High adsorption capacity makes it a good promising candidate material for simultaneous removal of Co2+, Ni2+, Cd2+, Zn2+ andCu2+ from aqueous solution with the co-existence of high concentration of alkali and alkaline-earth metals ions.

Trace analysis of heavy metal ions by ion chromatography

1989 ◽  
Vol 28 (5-6) ◽  
pp. 315-317 ◽  
Author(s):  
H. Bauer ◽  
Doris Ottenlinger ◽  
Daren Yan
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Ion Chromatography ◽  
Trace Analysis ◽  
Heavy Metal Ions

Study on the Complexation of 5,11,17,23,29,35- Hexacarboxy-37,38,39,40,41,42-Hexa-Methoxy-Hydroxamic Calix[6]arene Extraction of Metal Ions

2014 ◽  
Vol 1004-1005 ◽  
pp. 683-687
Author(s):  
Jie Zhou ◽  
Jing Song Wang ◽  
Xia Li ◽  
Feng Rong Fang
Keyword(s):  
Heavy Metal ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Alkali Metals ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Selective Removal ◽  
Alkaline Earth Metal ◽  
Alkaline Earth Metal Ions ◽  
Job's Method

The complexation abilities of 5,11,17,23,29,35-hexacarboxy-37,38,39,40,41,42- hexa-methoxy-hydroxamic calix[6]arene extraction of metal ions (Cu2+, Ni2+, Na+, Fe3+, Cd3+, Mn2+, Pb2+) were studied. And the complexation ration of Cu2+ and Pb2+ were obtained by Job's method. The selective removal of Cu2+ (Pb2+) coexisting with alkali metals ions (Na+, K+) and alkaline earth metal ions (Ca2+, Mg2+), heavy metal ions (Zn2+, Mn2+, Pb2+(Cu2+), Ni2+) and anions (CO32-, C2O42-, SO42-, NO3-) were studied separately . The results revealed that the percent of Cu2+(Pb2+) removal in the presence of alkali metals ions and alkaline earth metal ions was over 83.8% (90%) and in the presence of anions was over 90.1% (81.3%) while the percent of Cu2+(Pb2+) removal in the presence of heavy metal ions was lower than 70.6% (70.0%), and the minimum percent of Cu2+(Pb2+) removal in the presence of heavy metal ions was 32.7% (61.2%).

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