Summary
A cost-effective approach to monitoring and maintaining reliability of analytical procedures is by the incorporation of appropriate, compositionally similar reference materials into the scheme of analysis. Agricultural and food commodities represent an extremely wide range of composition, in respect of the sought-for analyte and the supporting material (matrix), not fully reflected in currently available biological reference materials (BRM's). With the view to attempting to fill some of the gaps in the world repertoire of reference materials and to have suitable products for our laboratories' use, preparation has been completed of twelve candidate agricultural reference materials. These products, representing a number of food classes, include bovine muscle powder, hard red spring wheat flour, soft winter wheat flour, durum wheat flour, wheat gluten, corn bran, corn starch, potato starch, whole egg powder, whole milk powder, microcrystalline cellulose, and sugar. Preparative steps included, as required, freeze drying, grinding or ball milling, X-ray sterilization, sieving, blending and packaging to yield sizeable quantities of each material in finely powdered form. Cooperative analytical effort is expected to lead to characterization in respect of concentrations of a number of nutritionally, toxicologically and environmentally-pertinent, major, minor, and trace chemical elements. These materials will then be available for analytical chemical data quality control for inorganic constituents in a range of agricultural commodities.
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References
Cali JP, Mears TW, Michaelis RE, Reed WP, Seward RW, Stanley CL, Yolken HT, Ku HH (1975) The role of standard reference materials in measurement systems. National Bureau of Standards Monograph 148. Washington, DC
Cantillo AY (1988) Standard and reference materials for use in marine science. National Oceanic and Atmospheric Administration, Rockville, MD, in press
Community Bureau of Reference (BCR) (1983, 1985, no date) Catalogue of BCR Reference Materials; Addendum to Catalogue, BCR Reference Materials, Brussels
Fukai R, Oregioni B, Vas D (1978) Oceanol Acta 1:391–396
Huntoon RD (1975) In: Seward RW (ed) Standard reference materials and meaningful measurements. National Bureau of Standards Spec Publ 408, Washington, DC, pp 4–56
Ihnat M (1982) In: Cantle JE (ed) Atomic absorption spectrometry, Elsevier, Amsterdam, pp 139–210
Ihnat M (1986) Report of analysis, reference material 8412 Corn (Zea Mays) Stalk. National Bureau of Standards, Gaithersburg, MD
Ihnat M (1986) Report of analysis, reference material 8413 Corn (Zea Mays) Kernel. National Bureau of Standards, Gaithersburg, MD
Ihnat M (1986) Trans Am Nucl Soc 53:168–169
Ihnat M (1988) Sci Total Environ 71:85–103
Ihnat M (1988) In: McKenzie HA, Smythe LE (eds) Quantitative analysis of biological materials, Elsevier, Amsterdam, chp. 19 and Appendix 1, in press
Ihnat M, Wolf WR (1985) In: Wolf WR (ed) Biological reference materials: availability, uses and need for validation of nutrient measurement. John Wiley and Sons, New York, pp 141–165
Ihnat M, Cloutier R, Wood D (1987) Fresenius Z Anal Chem 326:627–633
International Atomic Energy Agency (1988) Analytical Quality Control Services, Intercomparison Runs, Reference Materials: IAEA Vienna
Muramatsu Y, Parr RM (1985) Survey of currently available reference materials for use in connection with the determination of trace elements in biological and environmental materials. IAEA/RL/128: IAEA Vienna
Seward RW (ed) (1988) NBS Standard Reference Materials Catalogue 1988–89. National Bureau of Standards Spec. Publ. 260, NBS, Gaithersburg, MD
Tanner JT, Angyal G, Smith JS, Weaver C, Bueno MP, Wolf W, Ihnat M (1988) Fresenius Z Anal Chem 332:701–703
Uriano GA, Gravatt CC (1977) CRC Crit Rev Anal Chem 6:361–411
Wolf WR, Ihnat M (1985) In: Wolf WR (ed) Biological reference materials: availability, uses and need for validation of nutrient measurement. Wiley, New York, pp 89–105
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Contribution No. 88-49 from Land Resource Research Centre
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Ihnat, M. Preparation of twelve candidate agricultural reference materials. Z. Anal. Chem. 332, 539–545 (1988). https://doi.org/10.1007/BF00472638
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DOI: https://doi.org/10.1007/BF00472638