| Dating Silk By Capillary Electrophoresis Mass Spectrometry. | |
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MedLine Citation:
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PMID: 21913691 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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A new capillary electrophoresis mass spectrometry (CE-MS) technique is introduced for age estimation of silk textiles based on amino acid racemization rates. With an l to d conversion half-life of ∼2500 years for silk (B. mori) aspartic acid, the technique is capable of dating silk textiles ranging in age from several decades to a few-thousand-years-old. Analysis required only ∼100 μg or less of silk fiber. Except for a 2 h acid hydrolysis at 110 °C, no other sample preparation is required. The CE-MS analysis takes ∼20 min, consumes only nanoliters of the amino acid mixture, and provides both amino acid composition profiles and d/l ratios for ∼11 amino acids. |
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Authors:
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Mehdi Moini; Kathryn Klauenberg; Mary Ballard |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-9-13 |
Journal Detail:
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Title: Analytical chemistry Volume: - ISSN: 1520-6882 ISO Abbreviation: - Publication Date: 2011 Sep |
Date Detail:
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Created Date: 2011-9-14 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0370536 Medline TA: Anal Chem Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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Museum Conservation Institute, Smithsonian Institution , 4210 Silver Hill Road, Suitland, Maryland 20746-2863, United States. |
Export Citation:
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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