No matter the type of samples you gather for analysis, you want to be sure your analysis accurately reflects the true sample parameters, without artifacts introduced by sample handling. Ambient conditions can strongly affect sample quality and characteristics. As what might be a rather prosaic example, the ambient temperature can change hemoglobin concentration measurement of the faecal occult blood test for colorectal cancer screening. Of course, one good way to preserve sample characteristics is by storing samples in a laboratory freezer or ? as in this case ? in a?laboratory refrigerator.
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