Analysis of Ethanol in Beer Using Gas Chromatography: A Side-by-Side Comparison of Calibration Methods

被引：7
|
作者：
Hunter, Rebecca A. [1 ]
机构：
[1] Coll New Jersey, Dept Chem, Ewing, NJ 08628 USA
来源：
JOURNAL OF CHEMICAL EDUCATION | 2021年 / 98卷 / 04期
关键词：
Analytical Chemistry; Second-Year Undergraduate; Laboratory Instruction; Hands-On Learning/Manipulatives; Inquiry-Based/Discovery Learning; Quantitative Analysis; Calibration; Chromatography; Gas Chromatography; Instrumental Methods; STANDARD ADDITIONS; CHEMISTRY;
D O I：
10.1021/acs.jchemed.0c00962
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
An important objective of any analytical chemistry course is for students to generate and interpret data from the analysis of complex, real-world samples in order to assess the effectiveness of the analysis method, including the calibration. In this laboratory exercise, students directly compare calibration methods (external standards and standard addition, both with and without an internal standard) for the determination of ethanol in beer using an affordable benchtop gas chromatograph. The experiment allows students to evaluate the advantages and disadvantages of each method (including accuracy, precision, and sample preparation) using their own data.
引用
收藏
页码：1404 / 1409
页数：6
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