Contents 1
Cyanide detection based on natural dyes reaction from blue butterfly pea flowers (Clitoria Ternatea) / Chatrachatchaya Chotichayapong ; Pusita Kuchaiyaphum ; Nutthaya Butwong ; Worapong Bua-ngern 1
Abstract 1
1. Introduction 1
2. Experimental 2
2.1. Chemicals and reagents 2
2.2. Aqueous extraction of natural blue dyes 2
2.3. Determination of optimal pH of natural blue dyes for cyanide detection 2
2.4. Procedure for cyanide response 2
2.5. Structure and energetics 2
3. Results and Discussion 3
3.1. The study of the reaction between butterfly pea petals extracts and cyanide 3
3.2. The optimal pH of aqueous extract of blue butterfly pea for detection of cyanide 3
3.3. Linearity 5
3.4. Calibration curves and limit of detection 5
3.5. Accuracy and precision 6
3.6. Structure of Anthocyanin-HCN complex 6
4. Conclusions 7
References 7