From: Levels of essential and non-essential metals in ginger (Zingiber officinale) cultivated in Ethiopia
Trial no. | Reagent(s) used | Reagent volume (mL) | Temp. (°C) | Digestion time (h) | Results |
---|---|---|---|---|---|
Optimization for reagent volume | |||||
1 | Aqua-regia:H2O2 | 6.5:1 | 300 | 3:00 | Deep yellow with suspension |
2 | Aqua-regia:H 2 O 2 | 6:1.5 | 300 | 3:00 | Light yellow with no suspension |
3 | Aqua-regia:H2O2 | 5.5:2 | 300 | 3:00 | Light yellow with no suspension |
Optimization for temperature | |||||
1 | Aqua-regia:H2O2 | 6:1.5 | 240 | 3:00 | Deep yellow with suspension |
2 | Aqua-regia:H 2 O 2 | 6:1.5 | 270 | 3:00 | Light yellow with no suspension |
3 | Aqua-regia:H2O2 | 6:1.5 | 300 | 3:00 | Light yellow with no suspension |
Optimization for digestion time | |||||
1 | Aqua-regia:H2O2 | 6:1.5 | 270 | 2:00 | Deep Yellow with suspension |
2 | Aqua-regia:H2O2 | 6:1.5 | 270 | 2:30 | Light yellow with suspension |
3 | Aqua-regia:H 2 O 2 | 6:1.5 | 270 | 3:00 | Light yellow with no suspension |