You are provided with standard stock solutions containing 1000ppm each of Cu, Mn, K, Na and Ca. You are to perform a standard addition (or spike) on your pill samples to test for matrix interference. Show the calculations for the addition of 5 ppm of each element (Cu, Mn, K, Na, Ca) to your sample pill using the standards you have previously made or been provided with. Assume you will have less than 100 mL of pill solution to work with when making your spiked pill solution. Hint:) Make “spiked” working pill solutions (and sample blank!) by taking 1mL of your original pill solution and quantitatively transferring it solution to a 100 mL volumetric. Add the appropriate amount of your standards to add 5ppm of each element (except being analyzed to your solutions. Fill to the mark with 2% nitric acid (provided). Remember to do the same for your sample blank!
You are provided with standard stock solutions containing 1000ppm each of Cu, Mn, K, Na and Ca.
You are to perform a standard addition (or spike) on your pill samples to test for matrix interference. Show the calculations for the addition of 5 ppm of each element (Cu, Mn, K, Na, Ca) to your sample pill using the standards you have previously made or been provided with. Assume you will have less than 100 mL of pill solution to work with when making your spiked pill solution.
Hint:) Make “spiked” working pill solutions (and sample blank!) by taking 1mL of your original pill solution and quantitatively transferring it solution to a 100 mL volumetric. Add the appropriate amount of your standards to add 5ppm of each element (except being analyzed to your solutions. Fill to the mark with 2% nitric acid (provided). Remember to do the same for your sample blank!
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