Analysis of commercial selenium-supplement tablets.

Kathleen M. Carvalho-Knighton; Robert F. Benson; Francis A. Booth; M. Jordan Collier; Dean F. Martin

Analysis of commercial selenium-supplement tablets.

Kathleen M. Carvalho-Knighton, Robert F. Benson, Francis A. Booth, M. Jordan Collier, Dean F. Martin

University of South Florida

Research output: Contribution to journal › Article › peer-review

Abstract

Commercially available selenium-supplement tablets, obtained from a supermarket and a health food store in several lots were analyzed to compare reported and observed values of total selenium. Atomic absorption spectrometry with a hydride generator was used, and the results were confirmed for selected lots using inductively coupled plasma (ICP) spectrometry. Results indicate more variation than might be suspected. Several lots contained a significantly higher amount of selenium than reported with one lot having 50% more. One brand contained only 20-25% of the reported concentration, a significantly lower amount. Tablets were analyzed and compared to determine which brand, if any, had the most reliable amount per tablet.

Original language	American English
Journal	Default journal
State	Published - Jan 1 2000

Disciplines

Chemistry

Cite this

@article{2f6f788afb8b4aacaa14a488f12edd7b,

title = "Analysis of commercial selenium-supplement tablets.",

abstract = " Commercially available selenium-supplement tablets, obtained from a supermarket and a health food store in several lots were analyzed to compare reported and observed values of total selenium. Atomic absorption spectrometry with a hydride generator was used, and the results were confirmed for selected lots using inductively coupled plasma (ICP) spectrometry. Results indicate more variation than might be suspected. Several lots contained a significantly higher amount of selenium than reported with one lot having 50% more. One brand contained only 20-25% of the reported concentration, a significantly lower amount. Tablets were analyzed and compared to determine which brand, if any, had the most reliable amount per tablet.",

author = "Carvalho-Knighton, {Kathleen M.} and Benson, {Robert F.} and Booth, {Francis A.} and Collier, {M. Jordan} and Martin, {Dean F.}",

note = "Carvalho, K.M., Benson, R. F., Booth, F.A., Collier, M.J. & Martin, D.F. (2000). Analysis of commercial selenium-supplement tablets. Florida Scientist, 63, 8-12.",

year = "2000",

month = jan,

day = "1",

language = "American English",

journal = "Default journal",

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TY - JOUR

T1 - Analysis of commercial selenium-supplement tablets.

AU - Carvalho-Knighton, Kathleen M.

AU - Benson, Robert F.

AU - Booth, Francis A.

AU - Collier, M. Jordan

AU - Martin, Dean F.

N1 - Carvalho, K.M., Benson, R. F., Booth, F.A., Collier, M.J. & Martin, D.F. (2000). Analysis of commercial selenium-supplement tablets. Florida Scientist, 63, 8-12.

PY - 2000/1/1

Y1 - 2000/1/1

N2 - Commercially available selenium-supplement tablets, obtained from a supermarket and a health food store in several lots were analyzed to compare reported and observed values of total selenium. Atomic absorption spectrometry with a hydride generator was used, and the results were confirmed for selected lots using inductively coupled plasma (ICP) spectrometry. Results indicate more variation than might be suspected. Several lots contained a significantly higher amount of selenium than reported with one lot having 50% more. One brand contained only 20-25% of the reported concentration, a significantly lower amount. Tablets were analyzed and compared to determine which brand, if any, had the most reliable amount per tablet.

AB - Commercially available selenium-supplement tablets, obtained from a supermarket and a health food store in several lots were analyzed to compare reported and observed values of total selenium. Atomic absorption spectrometry with a hydride generator was used, and the results were confirmed for selected lots using inductively coupled plasma (ICP) spectrometry. Results indicate more variation than might be suspected. Several lots contained a significantly higher amount of selenium than reported with one lot having 50% more. One brand contained only 20-25% of the reported concentration, a significantly lower amount. Tablets were analyzed and compared to determine which brand, if any, had the most reliable amount per tablet.

UR - https://digitalcommons.usf.edu/fac_publications/2770

M3 - Article

JO - Default journal

JF - Default journal

ER -

Analysis of commercial selenium-supplement tablets.

Abstract

Disciplines

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