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Fig. 6 | Heritage Science

Fig. 6

From: The evolution of the materials used in the yun technique for the decoration of Burmese objects: lacquer, binding media and pigments

Fig. 6

Chromatographic profiles obtained by Py(HMDS)–GC–MS of sample 5_black (early nineteenth century or before). a Total ion chromatogram; b extracted ion chromatogram of the ion with m/z 179, showing CT7-acid) 7-(2,3-dihydroxyphenyl)heptanoic acid (2TMS), CT8-acid) 8-(2,3-dihydroxyphenyl)octanoic acid (2TMS); c extracted ion chromatogram of the ion with m/z 91, showing Ph-A8) 8-phenyloctanoic acid, Ph-A0) 9-phenylnonanoic acid (TMS), Ph-A10) 10-phenyldecanoic acid (TMS), Ph-A11) 11-phenylundecanoic acid (TMS), Ph-A12) 12-phenyldodecanoic acid (TMS), Ph-A13) 13-phenyltridecanoic acid (TMS); d extracted ion chromatogram of the ion with m/z 120, showing K5) 1-phenylpentan-1-one, K6) 1-phenylhexan-1-one, K7) 1-phenylheptan-1-one, K8) 1-phenyloctan-1-one, K9) 1-phenylnonan-1-one, K10) 1-phenyldecan-1-one, K11) 1-phenylundecan-1-one, K12) 1-phenyldodecan-1-one, Ox-A10) 10-oxo-10-phenyldecanoic acid (TMS), Ox-A11) 11-oxo-11-phenylundecanoic acid (TMS), Ox-A12) 12-oxo-12-phenyldodecanoic acid (TMS), Ox-A13) 13-oxo-13-phenyltridecanoic acid (TMS); e extracted ion chromatogram of the ion with m/z 117, showing A5) pentanoic acid (TMS), A6) hexanoic acid (TMS), A7) heptanoic acid (TMS), A8) octanoic acid (TMS), A9) nonanoic acid (TMS), A10) decanoic acid (TMS), A12) dodecanoic acid (TMS), A13) tridecanoic acid (TMS), A14) tetradecanoic acid (TMS), A15) pentadecanoic acid (TMS), A16) hexadecanoic acid (TMS), A17) heptadecanoic acid (TMS), A18) octadecanoic acid (TMS). Unlisted compounds are present in the caption of Fig. 5

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