会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • Method for determining the concentration of cations in a sample
    • 确定样品中阳离子浓度的方法
    • US5073501A
    • 1991-12-17
    • US304356
    • 1989-01-30
    • Eddy ChapoteauBronislaw P. CzechCarl R. GebauerKoon-Wah LeongAnand Kumar
    • Eddy ChapoteauBronislaw P. CzechCarl R. GebauerKoon-Wah LeongAnand Kumar
    • C07D498/08C07D498/18G01N33/52G01N33/84
    • C07D498/08C07D498/18G01N33/521G01N33/84
    • The invention is reagents and procedures for determining an amount of cations present in a sample, the reagent including one or more chromogenic cryptand compounds of formula I ##STR1## wherein k and j, either same or different, are equal to 1 to about 5;m and n, either same or different, are equal to 0 to about 4;a and e, either same or different, are equal to 0 to about 2;b and d, either same or different, are equal to 0 to about 5;R, either same or different, is hydrogen.lower alkyl, lower alkylidene, lower alkenyl, allyl, or aryl; and-Q- is ##STR2## wherein X is CH, N, or COH; and Y includes ##STR3## except that when Q is ##STR4## wherein Y is p-nitrophenylazo, 3-phenylisothiazolyl-5-azo, isothiazolyl-5-azo, thiazolyl-5-azo, 2,4,6-trinitrophenylazo, p-nitrostyryl, p-benzoquinonemonoimino or bis-(p-dimethylaminophenyl)hydroxymethyl, then the following condition cannot be present: that simultaneously b is equal to 0 or 1, d is equal to 0 or 1, j is equal to 1, n is equal to 1 or 2, a is equal to 1, e is equal to 1, k is equal to 1 and m is equal to 2.
    • 本发明是用于测定样品中存在的阳离子量的试剂和方法,该试剂包括一种或多种式I(I)的显色隐窝化合物,其中相同或不同的k和j相同或不同, 约5; m和n相同或不同,等于0至约4; a和e相同或不同,等于0至约2; b和d相同或不同,等于0至约5; R相同或不同,是氢。 低级烷基,低级亚烷基,低级烯基,烯丙基或芳基; 和-Q-是,其中X是CH,N或COH; 并且Y包括 ,不同之处在于Q是,其中Y是对硝基苯基偶氮,3-苯基异噻唑-5-偶氮,异噻唑-5-偶氮,噻唑基-5 (2,4,6-三硝基苯基偶氮),对硝基苯乙烯基,对苯醌二亚氨基亚氨基或双 - (对二甲基氨基苯基)羟甲基,则不能存在以下条件:同时b等于0或1,d等于 0或1,j等于1,n等于1或2,a等于1,e等于1,k等于1,m等于2。