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Food matrix CRMs is a branch of certified reference material, which is attached with certificates. One or more characteristic values of a food matrix CRMs are determined by a procedure that establishes traceability. In addition, the unit of measurement used to represent the characteristic value of a reproducible accuracy can be traced, and each standard value is associated with a given confidence level of uncertainty. The food matrix CRMs combine the target substance with the matrix, which is more consistent with the properties of the real tested sample.
Therefore, food matrix CRMs can effectively avoid the influence of matrix effect on the detection of material composition. In the current era of frequent problems in the food industry, in order to ensure food quality and safety, food matrix CRMs are indispensable in product inspection and quality control. Commonly used food matrix CRMs include rice matrix CRMs, flour matrix CRMs, mussel tissue matrix CRMs and others.
Analysis aluminum in food: Excessive levels of aluminum in food can affect the normal metabolism of human beings, so many countries and organizations have strict regulations on the content of aluminum in food. Food matrix CRMs can be used in inductively coupled plasma spectrum (ICP) detection method to determine the aluminum content in food, which has the characteristics of low detection limit, high sensitivity and good selectivity. In the quantitative detection of aluminum content in food, it is necessary to prepare food matrix CRMs solution and obtain the standard curves, which is the basis for the subsequent quantitative determination.
Analysis nitrate and nitrite in food: The nitrate and nitrite contained in food will form carcinogenic substances when they enter the organisms, while the food matrix CRMs can carry out qualitative or quantitative analysis of nitrate and nitrite in food to ensure food safety. For example, the standard curve made by food matrix CRMs can be used to realize the detection of nitrate and nitrite in milk by ion chromatography, and this method has the advantages of simple sample pretreatment, rapid, high selectivity and good stability.
Analysis the pesticide residue in beverage: There is a high risk of pesticide residues in drinks prepared from fresh fruits, which need to be detected by using food matrix CRMs. For example, high performance liquid chromatography can be used for the qualitative or quantitative analysis of various pyrethroid pesticide residues in concentrated apple juice, and food matrix CRMs are necessary during detection process.
Alfa Chemistry is one of the largest providers of food matrix CRMs in the world and the quality assurance is of prime importance to Alfa Chemistry. The solvent from Alfa Chemistry in the world is synonymous with reliability and excellent quality. Because of the exacting nature of our business and the regulatory demands placed upon our industry, Alfa Chemistry continues to be at the forefront in terms of compliance, accreditations and certifications.