Contents
Rapid determination and quantification of hair-growth compounds in adulterated products by ultra HPLC coupled to quadrupole-orbitrap MS / Ji Hyun Lee ; Han Na Park ; Gihaeng Kang ; Nam Sook Kim ; Seongsoo Park ; Jongkook Lee ; Hoil Kang 1
Abstract 1
1. Introduction 1
2. Experimental 2
2.1. Chemicals and reagents 2
2.2. Sample preparation 3
2.3. UHPLC-Q-Orbitrap-MS analysis 3
2.4. Method validation 3
3. Results and Discussion 4
3.1. Optimization of instrument conditions 4
3.2. Fragmentation of hair growth 4
3.3. Method validation 6
3.4. Sample application 8
4. Conclusions 8
References 8
Supplementary data 10