Chinese
lacquer ware under a long process of development, was commencing perhaps asearly as three millennia ago. By the six century, it was wide1y circulated to overseas withspreading of Buddhism. In Japan, there still have well preserved lacquer
wares to be brilliantcolour overthousand years in thc temple. Anyu;ay. several filmous style of lacquer wares wereavailable in China as art obJects or commodities at present. With the characteristics of orien-tal national style such as attractive design. beautiful c0lour etc， Chinese lacquer ware has ex-cellent artistic letIel w'hich carr} ft)rt"ard the good traditions being known from objects of HanDynasty.Fortunately. a series of broken fragments of lacquer ware from Han Dynasty grave wereobtained. It is of interest to detect the composition of fragments, by which the quality of mainingredients used in manufacturing lacquer ware would be known. Therefore, somemodernanalytic techniques are applied towards this goal including PyGC- DTA, andPyGc-IR. Here. we introduce a comprehensive method, which gives the identification to dis-tinguish the differences between
samples and also discover the
tungoil as an
additive in someof them.According to the chromatogram of pyrolysis products. the various samples can be distin-guished by the retention index(r21). In DTA measurements- if the content of tungoil is over50% in the samples. four exothermic peaks would be appeared in the DTA curve. However,the tungoil additive would be detected directly by PyGC-IR measurement without anyreference samples due to investigate the ester group being changed into hydroxyacid duringpyrolysis process.
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