Chemistry Letters p. 1305 - 1306 (1981)
Update date:2022-09-26
Topics:
Nakamura, Hiroshi
Sakka, Hideo
Takagi, Makoto
Ueno, Keihei
Two chromogenic crown ethers, N-(2-hydroxy-5-nitrobenzyl)-aza-15-crown-5(1) and N-(2-hydroxy-5-nitrobenzyl)-aza-18-crown-6(2), were synthesized for the extraction photometry of alkali metal ions.The extraction selectivity followed the order: 1, Li+>Na+>K+>>Rb+, Cs+ and 2, K+>Na+>Rb+>Li+>Cs+. 1 is useful for determining 10 - 100 ppm Li+ as well as for concentrating Li+ from a dilute solution
View MoreHeliosense Biotechnologies, Inc.
website:https://www.heliosense.com/
Contact:+86-592-5667290
Address:Xiamen Torch Hi-tech Zone Venture Weiye Building S506
SuZhou Ascepion Pharmaceuticals, Inc.(expird)
Contact:0512-86881668
Address:Building C,68Xingqing Road,Suzhou,China.
Shanghai Sungo Technology Chemical Co., Ltd
Contact:0086-21-51385579
Address:Room2010, F/20, Tonghua Plaza, NO 345 Jinxiang Road, Jinqiao Export Processing Zone, Shanghai, 201206 P.R.CHINA
ChangZhou Mascotchem. Co.,Ltd.
website:http://www.mascotchem.com
Contact:86-519-85010339
Address:B-802,XingBei Building,391#,Tongjiang Middle Road New District,Changzhou,JS,China
Zouping Mingxing Chemical Co.,Ltd.
website:http://www.zoutong.com.cn
Contact:86-543-2240068 2240067
Address:428 Daixi Third Road Zouping County Shandong Province China
Doi:10.1002/anie.201906350
(2019)Doi:10.1039/c9cy01738k
(2019)Doi:10.1021/jo00340a024
(1982)Doi:10.1021/jm900731j
(2009)Doi:10.1021/ja01195a015
(1947)Doi:10.1021/ja045522j
(2004)
