Relevant requirements for testing in the laboratory Chemical reagents are high-purity chemicals that meet certain quality requirements and are the material basis for analytical work. The purity of the reagent is very important for the analytical test. It will affect the accuracy of the result. If the purity of the reagent does not meet the

Basic steps in food inspection in the laboratory The basic steps of food inspection are: sample collection; sample processing; sample analysis and detection; analysis results recording and processing in four stages. 1 sample collection The collection of samples, also known as sampling and sample preparation, refers to the extraction of a representative sample for analysis