基于考古情境的化学综合实践活动设计——“考古”陶片中残留油脂的检测

doi:10.3866/PKU.DXHX201912018

Abstract

Abstract:

We analyzed and extracted the actual archaeological problems, and refined a chemical integrated practical activity around the theme of "analysis and detection of lipid residues absorbed in in archeological sherds". In this chemical practical activity, students are introduced to the interdisciplinary field of archaeological chemistry. Students crush and extract the lipid residues absorbed in archaeological sherds, transfer the recovered lipids to fatty acid methyl esters, analyze the product by GC, and analyze the usage of pottery based on the archeological background. The laboratory will be used for the students majoring in chemistry, biochemistry, and anthropology, and archaeology. Pedagogically, the techniques currently used in the field of archaeological chemistry are introduced, and the fundamental concepts in sample isolation and preparation, derivatization, gas chromatography, and multicomponent sample analysis are reinforced in this experiment.

Key words: Integrated practical activity, Archaeological chemistry, Interdisciplinary, Gas chromatography

Gang Liu, Yiming Sun, Siqi Li, Shaofen Yu, Qisheng Song, Shiling Yuan, Fen Wang, Ying Ma. Design of Chemical Integrated Practical Activity Based on Archeological Context: Lipid Residue Analysis of Archaeological Pottery[J].University Chemistry, 2020, 35(6): 63-70.

Figures/Tables 7

References 16

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名称	组分
名称	16 : 0 (棕榈酸)	18 : 2 (亚油酸)	18 : 1 (油酸)	18 : 0 (硬脂酸)	18 : 3 (亚麻酸)	20 : 0 (花生酸)	不饱和酸	饱和酸	合计
花生油	9.11	24.08	56.11	6.22	0.12	3.10	80.31	18.43	98.74
玉米油	12.32	56.10	28.03	1.65	1.14	0.31	85.27	14.28	99.55
大豆油	7.28	55.64	29.17	4.41	2.19	0.32	87.00	12.01	99.01
葵花油	6.72	60.08	27.76	4.48	0.20	0.18	88.04	11.38	99.42
芝麻油	9.54	40.77	43.65	4.08	0.25	0.80	84.67	14.42	99.09
葡萄籽油	5.12	59.33	26.20	3.84	4.42	–	90.15	8.99	99.14
棕榈油	46.54	10.17	38.20	4.66	–	–	48.37	51.20	99.57
核桃油	8.42	60.33	22.70	4.07	3.56	–	86.59	12.49	99.08
橄榄油	8.55	7.32	83.12	2.35	–	0.08	88.44	10.98	99.42

样品	组分				对应油脂
样品	16 : 0 (棕榈酸)	18 : 2 (亚油酸)	18 : 1 (油酸) + 18 : 3 (亚麻酸)	18 : 0 (硬脂酸)	对应油脂
样品1	11.47	52.21	30.15	5.15	大豆油
样品2	15.52	12.90	63.36	3.16	橄榄油
样品3	12.59	40.50	43.11	3.80	芝麻油

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Design of Chemical Integrated Practical Activity Based on Archeological Context: Lipid Residue Analysis of Archaeological Pottery

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