Use of Portable Capillary Liquid Chromatography for Common Educational Demonstrations Involving Separations

Use of Portable Capillary Liquid Chromatography for Common Educational Demonstrations Involving Separations
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使用便携式毛细管液相色谱进行涉及分离的常见教育演示

DOI:
10.1021/acs.jchemed.1c00342
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发表时间:
2021
影响因子:
3
通讯作者:
Grinias, James P.
Grinias, James P.
中科院分区:
化学2区
文献类型:
--
作者:
Pham, Michelle;Foster, Samuel W.;Kurre, Sangeeta;Hunter, Rebecca A.;Grinias, James P.

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高效液相色谱法是分析化学本科课程的主要技术之一。本技术报告介绍了一种便携式毛细管规模仪器的使用,该仪器可提供与台式仪器类似的性能,但产生的溶剂废物较少,并可在非实验室环境中操作。两种仪器类型之间进行了比较,单标准校准分析的咖啡因在饮食苏打和阿司匹林含量在非处方片剂,与标准品和样品之间的相对百分比差异在5%以下的两种仪器类型和两种样品。还探讨了在讲座和外联示范活动中使用该仪器的能力。便携式仪器可用于与传统仪器类似的教学目的,并提供一个平台,根据溶剂废物产生和功耗的差异,介绍关于绿色分析化学的讨论。
High-performance liquid chromatography is one of the primary techniques covered in the undergraduate analytical chemistry curriculum. This technology report describes the use of a portable capillary-scale instrument that can provide similar performance to a benchtop instrument but generates less solvent waste and enables operation in nonlaboratory settings. Comparisons between the two instrument types were made for single-standard calibration analysis of caffeine in diet soda and aspirin content in over-the-counter tablets, with relative percent differences between the standards and samples under 5% for both instrument types and both samples. The capability to use the instrument in lecture and outreach demonstration activities was also explored. Portable instruments can serve similar pedagogical purposes to traditional instruments as well as provide a platform to introduce discussions on green analytical chemistry based on differences in solvent waste generation and power consumption.
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