期刊
ANALYTICAL CHEMISTRY
卷 88, 期 10, 页码 5152-5158出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.6b00088
关键词
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资金
- Library of Congress
- Howard Hughes Medical Institute for an HHMI Fellowship
- University of Maryland
Synthetic, structural, spectroscopic and aging studies conclusively show that the main colorant of historical iron gall ink (IGI) is an amorphous form of Fe(III) gallate. xH(2)O (x = similar to 1.5-3.2). Comparisons between experimental samples and historical documents, including an 18th century hand-written manuscript by George Washington, by IR and Raman spectroscopy, XRD, X-ray photoelectron spectroscopy, and Mossbauer spectroscopy confirm the relationship between the model and authentic samples. These studies settle controversy in the cultural heritage field, where an alternative structure for Fe(III) gallate has been commonly cited.
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