RM8414: Bovine muscle powder

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This Reference Material (RM) is intended for use in evaluating analytical methods and instruments used for the determination of major, minor, and trace constituent elements in meat, meat products, and other similar food, agricultural, and biological materials. RM 8414 consists of 25 g of dry powdered beef muscle packaged in a glass bottle.

History

RM 8414 was prepared and characterized by the Centre for Land and Biological Resources Research (CLBRR), Agriculture Canada, which is the sole authority for the information provided in this report, including best estimate and other technical information. The materials were distributed by the National Institute of Standards and Technology (NIST) from 1993 until 2009, after which the stock was transferred to the National Research Council Canada (NRC).

Update

The recommended values listed in this report have not been updated since 1993. NRC is unable to confirm all the values listed herein, however, it has recently analyzed this material for a few select measurands (Ca, K, Mg, Na, Zn) and attained results that are in statistical agreement with the values reported in Table 1. A more detailed description of the preparation of this material and the methods used for analysis is available from NRC upon request.

Best estimate values for constituent elements

The population of analytical information from cooperating analysts using a wide variety of analytical methods was assessed using technical and statistical criteria as well as judgment to arrive at best estimate values and associated uncertainties listed below. These values, not certified by NRC, are based on results obtained by at least two, but typically several independent, reliable analytical methods.

Table 1:  Quantity values - Major constituents

Element	Mass fraction, (%)
Chlorine	0.188 ± 0.015
Nitrogen	13.75 ± 0.32
Potassium	1.517 ± 0.037
Phosphorus	0.836 ± 0.045
Sulfur	0.795 ± 0.041
Sodium	0.210 ± 0.008

Table 2:  Quantity values - Minor and trace constituents

Element	Mass Fraction (mg/kg)
Aluminium	1.7 ± 1.4
Arsenic	0.009 ± 0.003
Boron	0.6 ± 0.4
Bromine	1.1 ± 0.5
Cadmium	0.013 ± 0.011
Calcium	145 ± 20
Chromium	0.071 ± 0.038
Cobalt	0.007 ± 0.003
Copper	2.84 ± 0.45
Iodine	0.035 ± 0.012
Iron	71.2 ± 9.2
Lead	0.38 ± 0.24
Magnesium	960 ± 95
Manganese	0.37 ± 0.09
Mercury	0.005 ± 0.003
Molybdenum	0.08 ± 0.06
Nickel	0.05 ± 0.04
Rubidium	28.7 ± 3.5
Selenium	0.076 ± 0.010
Strontium	0.052 ± 0.015
Zinc	142 ± 14

Best estimate values, weight percent or mg/kg (ppm), are based on the dry material, and are equally-weighted means of results from generally at least two, but typically several, different analytical methods applied by analysts in different laboratories. Uncertainties are imprecision estimates expressed either as a 95% confidence interval or occasionally (B, Ni) as an interval based on the entire range of accepted results for a single future determination, based on a sample weight of at least 0.5 g. These uncertainties, based on between-method and laboratory, between-unit and within-unit estimates of variances, include measures of analytical method and laboratory imprecisions and biases and material inhomogeneity.

Information values

Concentration estimates for five other elements are provided below as information values only, as they are based on results of limited determinations or only one analytical method.

Table 3: Quantity values - Information

Element	Mass fraction, (mg/kg)
Antimony	0.01
Barium	0.05
Cesium	0.05
Fluorine	0.22
Vanadium	0.005

Approved by:

Zoltan Mester, Ph. D.
Group Leader, Chemical Metrology
Measurement Science and Standards

Comments, information and inquiries should be addressed to:

National Research Council of Canada
Measurement Science and Standards
1200 Montreal Road
Building M-12
Ottawa, Ontario K1A 0R6

Telephone: 613-993-2359
Fax: 613-993-2451
Email: CRM-MRCInorganic-Inorganiques@nrc-cnrc.gc.ca