04808539 is referenced by 9 patents and cites 8 patents.

The invention is reagents and procedures for determining an amount of cations present in a sample, the reagent comprising 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;

Title
Compounds, reagents and procedures for determining cations
Application Number
7/38843
Publication Number
4808539
Application Date
April 15, 1987
Publication Date
February 28, 1989
Inventor
Anand Kumar
Southfields
NY, US
Koon Wah Leong
Ossining
NY, US
Carl R Gebauer
Crompond
NY, US
Bronislaw P Czech
Peekskill
NY, US
Eddy Chapoteau
Brooklyn
NY, US
Agent
Morgan & Finnegan
Assignee
Technicon Instruments Corporation
NY, US
IPC
G01N 33/20
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