结果：不同材料药用塑料瓶的红外光谱具有特征性。
Result: IR can identify the material characteristic of plastic package.
结论：本文方法简便，专属性强，可用于药用塑料瓶的定性分析。
Conclusion: the IR method is simple, rapid, specialty and suitable for the identification of plastic drug package.
结论：本文方法简便，专属性强，可用于药用塑料瓶的定性分析。
Conclusion: the IR method is simple, rapid, specialty and suitable for the identification of plastic drug package.
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