manual of methods for determining micronutrients in fortified foods
manual of methods for determining micronutrients in fortified foods
manual of methods for determining micronutrients in fortified foods
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IX. Calculations<br />
1. Plot a graph <strong>of</strong> the absorbance values <strong>of</strong> the standard solutions (y-axis) aga<strong>in</strong>st concentration (x-axis)<br />
and obta<strong>in</strong> the equation <strong>of</strong> the standard curve (a typical equation is shown below the standard curve.<br />
2. Calculate the concentration <strong>of</strong> soluble iron <strong>in</strong> the sample solution solv<strong>in</strong>g the standard curve equation<br />
<strong>for</strong> x. For example:<br />
3. Calculate the concentration <strong>of</strong> soluble iron <strong>in</strong> the flour sample us<strong>in</strong>g the equation below.<br />
Where w is around 10.0 g.<br />
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