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Use "quantitation" in a sentence
"These include immunoglobulin quantitation (IgG, IgG subclasses, IgA, IgM, and IgE) and measurement of functional antibodies against Tetanus and Diphtheria."
"Complement (C3 and C4) quantitation and total complement activity (CH50) assays are also performed."
"Many diagnoses, such as the organic and amino acid disorders are routinely made by the analysis of urine and plasma specimens using gas chromatography/mass spectrometry and amino acid quantitation using ultra-performance liquid chromatography respectively."