5/15/2004 added TPEN-Ca and TPEN-Mg from Arslan et al., 1985, JBC 260:2719-2727
[CMC1002.TCM constants] see also WEBMAXC STANDARD for more metals


WARNING: limited error checking in this version. Be careful how you enter information..

This page should work with ANY machine that has a Javascript enabled browser. Now Mac and UNIX/LINUX users can start to have access to the power of MAXC without need of an emulator. I have tried to keep this page as "browser neutral" as possible. As you can read the source to this page, please feel free to offer suggestions for improvement. [OPEN SOURCE!]. You may also save this page to your computer and use offline with your browser.

Please feel free to edit and re-use this page as you see fit.
If you post on a web site, I would appreciate a link back to the MaxChelator home page: http://www.stanford.edu/~cpatton/maxc.html


1) Choose a calculation type:


2) Choose temperature in degrees C (0-50), pH (4-10) and ionic strength (empirical ionic equivalents. 0.001-1.000, seawater = 0.5 and ringers = 0.16):

Temperature = pH = Ionic =

3) You must have all cross constants for a calculation to work.
NOTE: Nothing prevents the program from running with unavailable constants, but the results will not be valid!

"A" means constants are available. "T" means temperature compensation is also available.
Enter values to the left of the chelator and metals names you want. All values are in MOLAR. You may use scientific notation, i.e. 1E-3 for 0.001M.

THE ARRAY: [do not edit]



Do not edit chelator or metal names

4) Press CALCULATE to produce answer below: NOTE: you may cut and paste all or parts of the answer to another application.

Gives free and total metals & chelators, Kds, complexes, ionic contribution

NOTE: You can "evaluate chelators" by having a non-zero value for any chelators you wish to evalute [like 1e-6] and at least one metal > zero. Kd's and ranges will appear at end [you may have to scroll down]. Only valid for metal-chelator combinations where there are constants.