Version 10.0 – July 2014
37
Description Unit Size
PROCESSED FOOD PRODUCTS
Wheat Flour Selenium and Selenomethionine
Selenised wheat was obtained from a UK university. The grain was cleaned with
water, milled at a temperature between 18 °C and 20 °C and 60 % relative humidity,
and sieved twice to a final particle size of 140 µm.
The primary use of this certified reference material is for the validation of methods for
the determination of selenium and selenomethionine in food materials and dietary
supplements.
Certified Values
Total selenium .......... 17.23 ± 0.91 mg/L Selenomethionine ......... 27.4 ± 2.6 mg/L
A commercial supply of sugar confectionery was obtained.
This material is intended for use in development, validation or quality control of
analytical methods for the determination of sugar in foodstuffs.
Assessed Values
Lactose ................... 7.06 ± 0.96 g/100 g Butyric acid in fat............. 0.677 ± 0.071 g/100 g
Sucrose .................... 46.5 ± 2.3 g/100 g Nitrogen .......................... 1.274 ± 0.024 g/100 g
Total fat ................ 29.64 ± 0.35 g/100 g
Indicative Values
Fructose .............................. 0.2 g/100 g Glucose .............................. 0.2 g/100 g
Calculated Values
Milk in fat ........................... 19.6 g/100 g Milk fat in sample ................ 5.8 g/100 g
A commercial supply of sugar confectionery was obtained.
This material is intended for use in development, validation or quality control of
analytical methods for the determination of sugar in foodstuffs.
Assessed Values
Glucose ...................... 9.7 ± 0.6 g/100 g Sucrose .................... 52.6 ± 3.7 g/100 g
Fructose ..................... 2.3 ± 0.2 g/100 g Maltose ....................... 4.2 ± 0.7 g/100 g
Wholemeal digestive biscuits were obtained from a commercial supplier.
This material is intended for use in the development, validation or quality control of
analytical methods for the determination of proximates, sugars and elements in food.
The material may also be applicable to other matrices where suitable materials are
not available.
Assessed Values
Nitrogen .................... 1.06 ± 0.2 g/100 g Fructose .................. 0.24 ± 0.06 g/100 g
Total fat .................... 20.9 ± 0.5 g/100 g Sucrose .................... 16.6 ± 0.8 g/100 g
Ash ......................... 2.08 ± 0.10 g/100 g Chloride .................. 0.55 ± 0.05 g/100 g
Indicative Value
Sodium ..................... 6300 ± 320 mg/kg Manganese ................... 5.9 ± 0.7 mg/kg
Potassium................... 1530 ± 80 mg/kg Zinc ............................... 5.8 ± 0.6 mg/kg
Phosphorus .................. 870 ± 50 mg/kg
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