Tannins characterization in historic leathers by complementary analytical techniques ATR-FTIR, UV-Vis and chemical tests (Record no. 8090)
[ view plain ]
| 000 -LEADER | |
|---|---|
| fixed length control field | 01895nab a2200205Ia 4500 |
| 001 - CONTROL NUMBER | |
| control field | Art-399 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 170220s2013 CNT 000 0 und d |
| 245 10 - TITLE STATEMENT | |
| Title | Tannins characterization in historic leathers by complementary analytical techniques ATR-FTIR, UV-Vis and chemical tests |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 10 p. |
| 310 10 - CURRENT PUBLICATION FREQUENCY | |
| Current publication frequency | Bimensual |
| 520 3# - SUMMARY, ETC. | |
| Summary, etc. | This paper presents a complementary analytical approach to characterize vegetable tanning materials in historic leathers. It is described the application of two molecular spectroscopic techniques, ATR-FTIR and UV-Vis, and three specific chemical tests to analyze tannins present in leathers. Acid butanol, nitrous acid and rhodamine colorimetric test, evaluated both visually and spectrophotometrically, were used to identify condensed tannins, ellagitannins and gallotannins, respectively. Ten samples of commercial, or laboratory prepared, vegetables tannins and seven new vegetable tanned leathers were also analyzed and obtained results were used for comparison. The complete analytical procedure was performed, in a semi-micro-destructive scale, using fibres collected from leather. Analysis of ATR-FTIR and UV spectra of commercial and laboratory prepared vegetable tannins allowed the establishment of the characteristic bands of condensed and hydrolysable tannins and, more specifically, gallotannins. These data were used to confirm the type of vegetable tanning agents used in new lather extracts. The same approach was used in cultural heritage leathers, supported by the colorimetric tests, since protein degradation products were co-extracted in aged leathers and interfered in IR spectra. |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | ATR-FTIR |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Chemical analysis |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Leather |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Tannins |
| 650 ## - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | UV-Vis |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | ARAÚJO, Maria Eduarda M. |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | FALCÀO, Lina |
| 773 ## - HOST ITEM ENTRY | |
| Title | Journal of Cultural Heritage 3 |
| Related parts | 14 4, 499-508 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Date acquired | Total Checkouts | Full call number | Barcode | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Biblioteca de l' Escola Superior Conservació i Restauració de Bens Culturals de Catalunya | Biblioteca de l' Escola Superior Conservació i Restauració de Bens Culturals de Catalunya | 22.02.2017 | Journal of Cultural Heritage 3 | Art-399 | 22.02.2017 | 22.02.2017 | Article de revista |