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:Chemical analysis and synthesis go no farther than to the separation of particles one from another, and to their reunion.
2,4-Dinitrophenylhydrazine, Brady's reagent, used in organic chemical analysis
Urinalysis - chemical analysis of urine for a wide array of diseases, along with other fluids such as CSF and effusions
Total Kjeldahl Nitrogen or TKN is the sum of organic nitrogen, ammonia (NH3) and ammonium (NH4+) in the chemical analysis of soils.