You purchase a premix flour containing iron (Fe), riboflavin, niacin, thiamin, and folate. For determination of Fe concentration in the flour sample, you conducted an atomic absorption spectrometer (AAS) experiment using known concentratioh of Fe (standard). About 10 g of flour sample is used and mixed in 100 mL of solution then measured using AAS. 1.2 1 0.8 0.6 0.4 0.2 4 8 10 12 -0.2 Fe concentration (mg/L) [a] If the absorbance value of the flour sample is at 0.35, calculate the Fe concentration presence in the flour sample (obtained equation from the standard curve is y = 0.1018x – 0.0514). [b] Commonly, the Fe contents are in the range of 1.6 mg to 2.3 mg in 100 g super flour to comply with FDA's standard of identity. Based on your calculation, justify if the Fe concentration in the flour sample comply with the FDA specification. Absorbance at 248.3 nm
You purchase a premix flour containing iron (Fe), riboflavin, niacin, thiamin, and folate. For determination of Fe concentration in the flour sample, you conducted an atomic absorption spectrometer (AAS) experiment using known concentratioh of Fe (standard). About 10 g of flour sample is used and mixed in 100 mL of solution then measured using AAS. 1.2 1 0.8 0.6 0.4 0.2 4 8 10 12 -0.2 Fe concentration (mg/L) [a] If the absorbance value of the flour sample is at 0.35, calculate the Fe concentration presence in the flour sample (obtained equation from the standard curve is y = 0.1018x – 0.0514). [b] Commonly, the Fe contents are in the range of 1.6 mg to 2.3 mg in 100 g super flour to comply with FDA's standard of identity. Based on your calculation, justify if the Fe concentration in the flour sample comply with the FDA specification. Absorbance at 248.3 nm
Nutrition Through The Life Cycle
7th Edition
ISBN:9781337919333
Author:Brown, Judith E.
Publisher:Brown, Judith E.
Chapter4: Nutrition During Pregnancy
Section: Chapter Questions
Problem 23RQ
Related questions
Question
![You purchase a premix flour containing iron (Fe), riboflavin, niacin, thiamin, and folate. For
determination of Fe concentration in the flour sample, you conducted an atomic absorption
spectrometer (AAS) experiment using known concentration of Fe (standard). About 10 g of
flour sample is used and mixed in 100 mL of solution then measured using AAS.
1.2
0.8
0.6
0.4
0.2
8
10
12
-0.2
Fe concentration (mg/L)
[a] If the absorbance value of the flour sample is at 0.35, calculate the Fe concentration
presence in the flour sample (obtained equation from the standard curve is y = 0.1018x -
0.0514).
[b] Commonly, the Fe contents are in the range of 1.6 mg to 2.3 mg in 100 g super flour to
comply with FDA's standard of identity. Based on your calculation, justify if the Fe
concentration in the flour sample comply with the FDA specification.
Absorbance at 248.3 nm](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4b3e384e-5f91-4be8-aca6-520832fab52e%2F20689486-f48f-4b5a-9dab-0c7e80526e38%2Fv3uxsr_processed.png&w=3840&q=75)
Transcribed Image Text:You purchase a premix flour containing iron (Fe), riboflavin, niacin, thiamin, and folate. For
determination of Fe concentration in the flour sample, you conducted an atomic absorption
spectrometer (AAS) experiment using known concentration of Fe (standard). About 10 g of
flour sample is used and mixed in 100 mL of solution then measured using AAS.
1.2
0.8
0.6
0.4
0.2
8
10
12
-0.2
Fe concentration (mg/L)
[a] If the absorbance value of the flour sample is at 0.35, calculate the Fe concentration
presence in the flour sample (obtained equation from the standard curve is y = 0.1018x -
0.0514).
[b] Commonly, the Fe contents are in the range of 1.6 mg to 2.3 mg in 100 g super flour to
comply with FDA's standard of identity. Based on your calculation, justify if the Fe
concentration in the flour sample comply with the FDA specification.
Absorbance at 248.3 nm
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