Table 4 Preparation of samples for accuracy
Sr. no | Sample name | Weight of sample (g) accurately | Volume of HNO3 + HCl (mL) | Volume of stock-B solution (mL) | Microwave digestion | Final volume make up with type-I water (mL) |
|---|---|---|---|---|---|---|
1 | As such sample | 0.2000 | 5.0 + 1.0 | NA | Perform microwave digestion till the sample was clear | 50 |
2 | 0.2000 | 5.0 + 1.0 | 50 | |||
3 | 0.2000 | 5.0 + 1.0 | 50 | |||
1 | LOQ | 0.2000 | 5.0 + 1.0 | 0.250 | 50 | |
2 | 0.2000 | 5.0 + 1.0 | 50 | |||
3 | 0.2000 | 5.0 + 1.0 | 50 | |||
1 | Spike at 50% | 0.2000 | 5.0 + 1.0 | 0.500 | 50 | |
2 | 0.2000 | 5.0 + 1.0 | 50 | |||
3 | 0.2000 | 5.0 + 1.0 | 50 | |||
1 | Spike at 100% | 0.2000 | 5.0 + 1.0 | 1.000 | 50 | |
2 | 0.2000 | 5.0 + 1.0 | 50 | |||
3 | 0.2000 | 5.0 + 1.0 | 50 | |||
1 | Spike at 150% | 0.2000 | 5.0 + 1.0 | 1.500 | 50 | |
2 | 0.2000 | 5.0 + 1.0 | 50 | |||
3 | 0.2000 | 5.0 + 1.0 | 50 |