Contents
Improved HPLC-UV method for determination of five synthetic dyes in Typha orientalis / Kyung Yuk Ko ; Eun Young Choi ; Se Hee Jeong ; Ock jin Paek ; Chan Lee ; Huijin Heo ; She-Wook Oh ; Chulhyun Lee ; Juhye Kang ; Sooyeul Cho 1
Abstract 1
1. Introduction 1
2. Experimental 3
2.1. Materials and reagents 3
2.2. Preparation of the mixed standard solution 4
2.3. Selection of optimal extraction condition 4
2.4. Sample preparation and HPLC conditions 4
2.5. LC-MS/MS conditions 5
3. Results and Discussion 5
3.1. Appearance and microscopic observation of Typha orientalis 5
3.2. Optimization of the extraction and HPLC analysis 5
3.3. Method validation 8
3.4. Confirmation by LC-MS/MS analysis 9
3.5. Cross-validation results 9
4. Conclusions 10
References 11
Authors' Position 12