My science fair project is on the Ratio of calcium in different products to daily calcium intake which is 1000mgs per day. I have done my background research, and found that to measure calcium I would need to use calcium assay, I do no know where to find any, or buy any. My school does not have it available. Also I am unsure if I should just use 3 different tests (soy milk, skim milk, and the most popular calcium supplement) or If I should also use different brands, or another item containing calcium. I am confused about how to relate this into everyday life, because though we need to know how much is in each calcium intake, should I see how much of each product you would have to take to get the recommended dose of calcium? I am very confused, and I hope I don't have to think of a whole new science fair project idea, so this will hopefully help.
I guess I could use the data on the products, though then would it still be considered a Science Fair Project?
Calcium Intake
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pinkspacehippo
- Posts: 14
- Joined: Thu Nov 20, 2008 6:05 pm
- Occupation: Student
- Project Question: Can a pescetarian get enough calcium through non-dairy sources?
- Project Due Date: January 22/23 2009
- Project Status: I am conducting my research
Calcium Intake
Last edited by pinkspacehippo on Fri Nov 21, 2008 12:41 pm, edited 1 time in total.
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Ellums
- Former Expert
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- Project Status: Not applicable
Re: Calcium Intake
Don't the products you have chosen have the calcium listed on the package nutrition label? Are you trying to confirm the label is correct/incorrect?
Could you try describing your intent again for me?
Could you try describing your intent again for me?
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michellebayefsky
- Former Expert
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- Occupation: Student
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Re: Calcium Intake
Here is a link that describes one way to measure calcium in a liquid:
http://newton.dep.anl.gov/askasci/chem00/chem00524.htm
I also found this:
One beaker with volume 250 cm^3, put 50 cm^3 of your sample. Add 5 cm^3 of NaOH which has 2 mol/dm^3 and on tip of a spoon indicator. You titrate with 0.025 mol/dm^3 EDTA until color is changed from blue to violet-blue.
You can calculate concentration of Calcium on this way:
(mmol/dm^3 Ca2+) / dm^3 = (V x M x 1000) / 50
Other methods including Calcium Assay kits cost $1000 or more.
I hope this helps!
http://newton.dep.anl.gov/askasci/chem00/chem00524.htm
I also found this:
One beaker with volume 250 cm^3, put 50 cm^3 of your sample. Add 5 cm^3 of NaOH which has 2 mol/dm^3 and on tip of a spoon indicator. You titrate with 0.025 mol/dm^3 EDTA until color is changed from blue to violet-blue.
You can calculate concentration of Calcium on this way:
(mmol/dm^3 Ca2+) / dm^3 = (V x M x 1000) / 50
Other methods including Calcium Assay kits cost $1000 or more.
I hope this helps!