scholarly journals Separation of hafnium from zirconium in HNO3 solution by solvent extraction with Cyanex572

2021 ◽  
Vol 202 ◽  
pp. 105600
Author(s):  
Hongyang He ◽  
Fei Xu ◽  
Qiaolei Li ◽  
Panfei Dong ◽  
Jian Zheng ◽  
...  
2016 ◽  
Vol 310 (2) ◽  
pp. 703-709 ◽  
Author(s):  
Ze-Yi Yan ◽  
Peng Ren ◽  
Qing-Gang Huang ◽  
Ming-Jian He ◽  
Yang Li ◽  
...  

1972 ◽  
Vol 69 (2) ◽  
pp. 257-266 ◽  
Author(s):  
Bryant Benson ◽  
Mary Jane Matthews ◽  
Alvin E. Rodin

ABSTRACT Continuing investigation of pineal gland function indicates that the anti-gonadotrophic activity of this organ cannot be attributed solely to the postulated hormone melatonin, the concentration of which is negligible in the pineal body compared to quantities required to produce unequivocal physiological effects. A non-melatonin antigonadotrophic substance recently isolated from bovine pineal glands was further purified by organic solvent extraction, ultrafiltration and gel filtration. Studies of partial blockage of compensatory ovarian hypertrophy in unilaterally ovariectomized Charles River CD-1 mice indicated that this substance is significantly more potent than melatonin in this test system.


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