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 MoreHefei Highzone Fine Chemical S&T CO.,LTD
Contact:86-0551-63663560
Address:room 1801 NO. 24 Shuguang RD.
SHANGHAI SYSTEAM BIOCHEM CO., LTD
website:http://www.systeambc.com
Contact:86-021-58380978
Address:Building 87，Lane 669， Dong Jing Road Shanghai,P.R.China
Jiangxi Hito Chemical Co., Ltd.
Contact:+86-792-3170318
Address:No. 6, Tianhong Ave., Xinghuo Industry Park, Yongxiu, Jiujiang, Jiangxi, China
LINYI FUDE FINE CHEMICAL CO.,LTD
Contact:86-539-2361184
Address:YISHUI, LINYI,SAHNDONG,CHINA
Hefei TNJ chemical industry co.,ltd
website:https://www.tnjchem.com
Contact:+86-551-65418695
Address:B911 Xincheng Business Center, Qianshan Road, Hefei Anhui 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)
