The most common heavy metals found in baby food are inorganic arsenic, lead, cadmium and mercury, which are in the World Health Organisation's top 10 chemicals of concern for infants and children.
PH buffers are solutions which prevent large variations in pH levels. Every pH level produced has a specified buffer capacity and buffer range. The capacity of the buffer refers to the amount of acid or base which can be added before the pH alters substantially.
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Spectroscopic applications typically require excellent accuracy and precision to ensure the ongoing validity of results. Today’s analytical ICP instruments are extremely well designed and can produce quality data for over a decade if the instrument is well maintained.
