This Standard Reference Material (SRM®) is intended primarily for use in validating methods for determining proximates, fatty acids, calories, vitamins, elements, amino acids, aflatoxins, and acrylamide in peanut butter and similar matrices. This SRM® can also be used for quality assurance when assigning values to in-house control materials. A unit of NIST-2387 consists of three jars of peanut butter containing 170 g each. Reference values for proximates, caloric content, fatty acids, amino acids, water-soluble vitamins, aflatoxins and acrylamide. /// Sample values - please ask for current certificate.
Contents
Analyte
CAS Number
Concentration
Unit
Additional information
Method
Fat (Extractable)
51,6 ± 1,4
%
Certified Mass Fraction Value
Calcium (Ca)
[7440-70-2]
411 ± 18
mg/kg
Certified Mass Fraction Value
Copper (Cu)
[7440-50-8]
4,93 ± 0,15
mg/kg
Certified Mass Fraction Value
Iron (Fe)
[7439-89-6]
16,4 ± 0,8
mg/kg
Certified Mass Fraction Value
Magnesium (Mg)
[7439-95-4]
1680 ± 70
mg/kg
Certified Mass Fraction Value
Manganese (Mn)
[7439-96-5]
16,0 ± 0,6
mg/kg
Certified Mass Fraction Value
Phosphorus (P)
[7723-14-0]
3378 ± 92
mg/kg
Certified Mass Fraction Value
Potassium (K)
[7440-09-7]
6070 ± 200
mg/kg
Certified Mass Fraction Value
Sodium (Na)
[7440-23-5]
4890 ± 140
mg/kg
Certified Mass Fraction Value
Zinc (Zn)
[7440-66-6]
26,3 ± 1,1
mg/kg
Certified Mass Fraction Value
delta-Tocopherol
10 ± 3
mg/kg
Certified Mass Fraction Value
gamma + beta-Tocopherol
100 ± 19
mg/kg
Certified Mass Fraction Value
Tetradecanoic acid (Myristic acid) (C14:0)
[544-63-8]
0,024 ± 0,002
%
Reference Mass Fraction Value for Fatty Acid as Free Fatty Acid
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