20 Diamine Ink Chromatograms

[smiorgan]

Just for fun I did some chromatography on the 20 Diamine inks I own.

 

http://www.departmentv.net/2015/01/20-diamine-ink-chromatograms/

 

http://www.departmentv.net/wp-content/uploads/2015/01/chrom_resize.jpeg

 

Top Row: DD Blue, Green, Brown, Purple, Red and Orange, plus Red Dragon, Oxblood, Ancient Copper and Sunset

Bottom Row: Grey, Graphite, Salamander, Evergreen, Meadow, China Blue, Eclipse (upside down), Imperial Blue, Hope Pink, Amber

More photos in my blog. They're not all perfect but there's some interesting information about the magenta content of some of them that can be tied to their tendency to fade.

Edited January 29, 2015 by smiorgan

[sansa]

Surprising to see so much pink (magenta?) in Ancient Copper.

 

And that Salamander is not in fact comprised of pond scum.

[smiorgan]

Surprising to see so much pink (magenta?) in Ancient Copper.

 

And that Salamander is not in fact comprised of pond scum.

Yes, both of those were unexpected.

 

Also the elution profiles are useful -- anything with pink in it is a pain to clean, whereas the reds are pretty easy to flush (surprisingly), and this matches how well those components follow the solvent front

 

Actually the biggest surprise was Deep Dark Green, which is so totally different from Evergreen and Salamander. Would be interesting to do this with Umber and Green/Black.

Edited January 29, 2015 by smiorgan

[The Good Captain]

I like these comparisons and have had a look at your blog as well. Comment to follow on there tomorrow, all being well.

[Tas]

Loving these. Thanks for taking the time to share them with us.

 

The process is a little like forcing the inks to tell you the truth . . .