Research Article
Fast Determination of Manganese in Milk and Similar Infant Food Samples Using Multivariate Optimization and GF AAS
Table 2
Experiments and results obtained in second experimental design to determine Mn in milk and similar food samples.
| | Exp. |
aPyrolysis temperature (°C) |
aAtomization temperature (°C) | Integrated absorbance(s) | Background signal(s) |
| | 1 | 1000 (−1) | 2000 (−1) | 0.478 ± 0.003 | 0.076 ± 0.005 | | 2 | 1000 (−1) | 2600 (+1) | 0.618 ± 0.060 | −0.085 ± 0.097 | | 3 | 1600 (+1) | 2000 (−1) | 0.060 ± 0.004 | −0.083 ± 0.007 | | 4 | 1600 (+1) | 2600 (+1) | 0.202 ± 0.015 | −0.233 ± 0.001 | | 5 | 876 () | 2300 (0) | 0.441 ± 0.031 | 0.079 ± 0.027 | | 6 | 1724 () | 2300 (0) | 0.082 ± 0.001 | −0.133 ± 0.032 | | 7 | 1300 (0) | 1876 () | 0.434 ± 0.001 | 0.033 ± 0.040 | | 8 | 1300 (0) | 2724 () | 0.646 ± 0.039 | −0.113 ± 0.068 | | 9 (C) | 1300 (0) | 2300 (0) | 0.443 ± 0.018 | 0.017 ± 0.082 | | 10 (C) | 1300 (0) | 2300 (0) | 0.424 ± 0.018 | −0.045 ± 0.002 |
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aThe coded values are between parenthesis.
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