Infant Formula and Supplementary Food Safety Standards and Typical Cases of Microwave Sample Pretreatment
Imported baby milk powder and food have always been the hard currency of the mother and baby circle. Mothers can't believe the overwhelming Taobao goods. The food additives for snacks can be translated into Japanese English with a dictionary.
For moms who want to see preservatives on a sunny day, the recent US Consumer Reports website (CR) names 15 infant foods containing heavy metals such as arsenic, cadmium and lead! It can be said that it is beginning to doubt life, such as the best in Earth's Best world. This domineering brand is the largest organic food brand in the United States and is listed among them.
How does heavy metal harm children?
Lead and mercury are toxic to everyone and especially dangerous for young children. Exposure of small amounts of heavy metals to young children may result in low IQ risk and cause diseases such as autism and ADHD.
Anton Paar explains the relevant testing standards in detail.
Children's milk powder safety -- Anton Paar guards.
Limits and testing standards for minerals and heavy metals in infant formula and supplementary foods
The national standard of the People's Republic of China [GB 10765-2010] "National Standards for Food Safety Infant Formula" and [GB 2762-2017] "Food Safety National Standards for Contaminants in Foods" are two types of standards for the mineral content of infant formulas and There are clear requirements for heavy metal limits for infant formula and supplementary foods. The specific indicators are shown in the following table:
In addition, in addition to strict product segmentation and regulations for the limits of heavy metals, the corresponding heavy metal testing standards have been continuously updated. Dozens of heavy metals (copper, zinc, potassium, sodium, selenium, nickel, aluminum, magnesium, manganese) in the GB5009.X-2017 series including [GB 5009.12-2017] "Determination of lead in food safety national standards" The testing standards of etc. were also officially implemented in 2017. Among them, sample pretreatment plays an important role in the whole analysis and detection process, and the lack of laboratory sample pretreatment ability greatly limits the level of overall analysis and detection.
Anton Paar microwave sample pretreatment solution
Nowadays, the microwave digestion rule has gradually replaced the traditional dry digestion with a revolutionary trend, which has reduced the matrix effect introduced by solid reagents, and has become the first choice for the preparation of inorganic laboratory samples. The digestion effect, experimental efficiency, reagent dosage and The results have absolute advantages in terms of accuracy and repeatability. Anton Paar offers its customers a wide range of microwave digestion devices, Multiwave GO, PRO, 7000, designed to meet the diverse needs of customers in terms of sample type, throughput, laboratory space and budget.
Multiwave PRO Microwave Digestion/Extraction System
Multiwave GO Microwave Digestion System
Multiwave 7000 Super Microwave Digestion Preparation System
Typical case of Anton Paar milk powder sample pretreatment
Experimental overview:
*Sample: Milk powder standard (BCR 150)
*Elements to be tested: cadmium (Cd), copper (Cu), iron (Fe), manganese (Mn), nickel (Ni), zinc (Zn)
* Weighing amount: 0.5g
* Acid type and dosage: 5mLHNO3+2H202
*Microwave digestion procedure: 200 ° C; ramp 15 min; hold 20 min
*Microwave digestion instrument: Anton Paar MW PRO; Analytical instrument: Perkin Elmer Optima 3000 XL
Experimental results:
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