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Qualitative Analysis of Pb Liquid Sample Using Laser- Induced Breakdown Spectroscopy (LIBS)

机译：利用激光诱导击穿光谱法的定性分析Pb液体样品（LIBS）

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Qualitative analysis of liquid sample containing 1,000 ppm of Pb was performed by using LIBS technique. In order to avoid splashing off of the liquid sample during laser irradiation, a sample pretreatment was done, namely the liquid sample was absorbed by using commercial available stomach medicine. Two kinds of absorbent materials were chosen in this experiment, first containing 125 mg activated carbon and second 600 mg activated attapulgite. These absorbent materials were used since carbon sample gives better absorption of infrared laser irradiation used in this experiment. In order to characterize the absorption process, three treatments were conducted in this experiment; first, without heating the sample but varying the absorption time before laser irradiation; second by varying the heating temperature after certain time of absorption process and third by varying the temperature only. The maximum emission intensity of Pb I 405.7 nm was found in the second treatment of heating the sample till 85°C after 30 minutes absorption of the liquid sample in both absorbent materials.
机译：通过使用LIBS技术进行含有1,000ppm PP的液体样品的定性分析。为了避免在激光照射期间溅出液体样品，完成样品预处理，即通过使用商业可用的胃医学吸收液体样品。在该实验中选择了两种吸收材料，首先含有125mg活性炭和第二600mg活性的亚己酯。使用这些吸收材料，因为碳样品可以更好地吸收本实验中使用的红外激光辐射。为了表征吸收过程，在该实验中进行了三种处理;首先，不加热样品，但在激光照射前改变吸收时间;第二通过在一定时间的吸收过程中改变加热温度，仅通过改变温度来改变温度。在液体样品30分钟后，在吸收材料中吸收液体样品后，在将样品加热至85℃的第二种处理中发现了Pb I 405.7nm的最大发射强度。

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