TITLE

Current mass spectrometry strategies for selenium speciation in dietary sources of high-selenium

AUTHOR(S)
Infante, Heidi Goenaga; Hearn, Ruth; Catterick, Tim
PUB. DATE
June 2005
SOURCE
Analytical & Bioanalytical Chemistry;Jun2005, Vol. 382 Issue 4, p957
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This document reviews the most relevant mass spectrometry approaches to selenium (Se) speciation in high-Se food supplements in terms of qualitative and quantitative Se speciation and Se-containing species identification, with special reference to high-Se yeast, garlic, onions and Brazil nuts. Important topics such as complexity of Se speciation in these materials and the importance of combining Se-specific detection and molecule-specific determination of the particular species of this element in parallel with chromatography, to understand their nutritional role and cancer preventive properties are critically discussed throughout. The versatility and potential of mass spectrometric detection in this field are clearly demonstrated. Although great advances have been achieved, further developments are required, especially if “speciated”certified reference materials (CRMs) are to be produced for validation of measurements of target Se-containing species in Se-food supplements.
ACCESSION #
17434231

 

Related Articles

  • Speciation of alkylated metals and metalloids in the environment. Hirner, Alfred V. // Analytical & Bioanalytical Chemistry;Jul2006, Vol. 385 Issue 3, p555 

    The analytical methodology for speciation of metals and metalloids associated with alkyl groups and biomacromolecules is critically reviewed. Alkylated metals and metalloids are not only known to be produced by microbial methylation within most anaerobic compartments in the environment, but also...

  • Too soon to put stock in selenium supplements.  // Tufts University Health & Nutrition Letter;Mar97, Vol. 15 Issue 1, p2 

    Presents details on the results of a study regarding the use of selenium supplements to prevent cancer. Selenium's impact on cancer cells; Need for further study on the effect of selenium on women.

  • Mineral supplement has anti-cancer effect.  // HealthFacts;Jan97, Vol. 22 Issue 1, p3 

    Focuses on a study suggesting that selenium supplementation could reduce the rate of lung, colon, and prostate cancers. Lack of effect on skin cancer.

  • Selenoproteins: the key factor in selenium essentiality. State of the art analytical techniques for selenoprotein studies. Heras, Isabel Lopez; Palomo, Maria; Madrid, Yolanda // Analytical & Bioanalytical Chemistry;Aug2011, Vol. 400 Issue 6, p1717 

    Selenium is an essential element for human health. The benefits of selenium are many including protection against cancer, heart diseases and other cardiovascular and muscle disorders. Selenium is also helpful in controlling gastrointestinal disorders, enhancing immunity of the human body and...

  • Capillary liquid separation techniques with ICP MS detection. Schaumlöffel, Dirk // Analytical & Bioanalytical Chemistry;Jun2004, Vol. 379 Issue 3, p351 

    The article presents information on the capillary liquid separation techniques with inductively coupled plasma mass spectrometer (ICP-MS) detector used in elemental speciation and metalloproteomic research. The advantage of using this technique is that high separation efficiency is combined with...

  • Double-focusing ICP-MS for the analysis of biological materials. Marchante-Gayón, Juan Manuel // Analytical & Bioanalytical Chemistry;Jun2004, Vol. 379 Issue 3, p335 

    The article focuses on double-focusing inductively coupled plasma-mass spectrometry (DF-ICP-MS), one of the most powerful analytical techniques for elemental and speciation analysis in biological materials. The advantages of ICP-MS technique are: Low detection limits, multielemental...

  • Extraction and Sample Preparation. Rezaee, Mohammad; Khalilian, Faezeh; Pourjavid, Mohammad Reza; Seidi, Shahram; Chisvert, Alberto; Abdel-Rehim, Mohamed // International Journal of Analytical Chemistry;3/24/2015, Vol. 2015, p1 

    No abstract available.

  • Are Selenoproteins Important for the Cancer Protective Effects of Selenium? Davis, Cindy D.; Irons, Robert // Current Nutrition & Food Science;2005, Vol. 1 Issue 3, p201 

    Epidemiologic and preclinical studies provide evidence that the essential nutrient selenium has cancer protective properties. The mammalian genome encodes 25 selenoprotein genes that contain one or more molecules of selenium in the form of the amino acid selenocysteine, which is translationally...

  • Protecting the Prostate. Murray, Michael T. // Alive: Canada's Natural Health & Wellness Magazine;Jun2002, Issue 236, p88 

    Presents several nutrients that every man needs to prevent prostate cancer. Importance of lycopene as anticancer nutrient; Supplementation with selenium; Efficacy of flax seed in preventing cancer.

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics