Contents
Impurity profiling and chemometric analysis of methamphetamine seizures in Korea / Dong Won Shin ; Beom Jun Ko ; Jae Chul Cheong ; Wonho Lee ; Suhkmann Kim ; Jin Young Kim 1
Abstract 1
1. Introduction 1
2. Experimental Procedures 3
2.1. Reagents and apparatus 3
2.2. MA seizures 3
2.3. Instrumental analysis 3
2.4. Sample preparation 4
2.5. Impurity profiling 4
2.6. Chemometric analysis 4
3. Results and Discussion 4
3.1. Impurity analysis 4
3.2. Unsupervised clustering analysis 6
3.3. Supervised classification analysis 7
3.4. Comparison of accuracy among classification models 8
4. Conclusions 8
References 9
Authors' Position 10