利用红外光谱技术检验一次性筷子塑料包装袋

为建立一种快速准确区分检验现场提取到的一次性筷子塑料包装袋的方法，利用红外光谱仪以及Smart Performer采样器的实验方法，对收集整理的40个不同品牌、不同来源、不同批次的一次性筷子包装袋样品进行区分。依据红外光谱图中吸收峰的峰数、峰位、峰强的不同对各种筷子塑料包装袋样品进行鉴别，并通过红外光谱的特征差异进行分析归纳，从而将收集到的筷子塑料包装袋样品进行科学、有效的区分。同时，对样品的重现性、最小检出量以及污染情况的影响加以讨论。实验结果表明:该方法检验一次性筷子塑料包装袋样品简便快速、结果准确可靠、重现性好、无需制样且无损检材。

Inspection of disposable chopsticks plastic packing bags by infrared spectroscopy

In order to establish a method to quickly and accurately distinguish and inspect disposable chopstick plastic packaging bags extracted from the site, an infrared spectrometer and an experimental method of Smart Performer sampler were used to analyze the collected samples of disposable chopstick packaging bags of 40 different brands, different places of sale and different batches. According to the difference of the peak number, peak position and peak strength of the absorption peak in the infrared spectrogram, the collected samples of the chopsticks plastic packaging bag can be distinguished scientifically and effectively by analyzing and summarizing the differences of the infrared spectrum characteristics of various chopsticks plastic packaging bag samples. The reproducibility of the samples, the minimum amount of detection and the influence of contamination were also discussed. The experimental results show that the test method of disposable chopsticks plastic bags samples is simple rapid, accurate and reliable, reproducible, without sample preparation and nondestructive examination.