Hi Matt,
to check, if the color comes from a metal ion, you can get an AAS
analysis done. You need something in the range of 1 mg of well dialyzed
protein (metal free buffer!). We got an analysis done for the most
important metals (Mn, Fe, Co, Ni, Cu, Zn) for ca. 20 Eur per element
from a local analytic company.
greetings
Gottfried
Dr. Gottfried Palm
Ernst-Moritz-Arndt-Universität
Inst. für Biochemie (MNF)
Abt. Biochemie I
Felix-Hausdorff-Straße 4
17489 Greifswald
Tel. +49(03834)-864393 Fax. +49(03834)-864373
email [log in to unmask]
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