What is the principle involved in the Dinitro salicylic (DNS) colorimetric method?
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- What is the principle involved in the Dinitro salicylic (DNS) colorimetric method?
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- Which stationary phase is better in separation of the components of moringa extract for column chromatography? Sodium Bicarbonate or Silica Gel? And Explain.What is optical density (OD) and how is it measured? How is it related to the concentration of the analyte? And what is a colorimetric assay?What are the possible sources of error when experimenting with sodium bicarbonate and hydrochloric acid experiment in yielding the reaction?
- Why is the absorbance spectrum of the iron (II) complex obtained first prior to measuring the absorbance of the standard concentrations and unknown samples?In kool aid chromatography, what factors affect the efficiency of the column? Also discuss the Van-Deemter equation.What is the reagent used to detect glucose in the ph and temperature experiments? What is its principle? What is the principle of the spectrophotometer?
- How to prepare a 12 mL solution of 1 mM NaCl in deionized water if your precision balance has a lower limit of detection of 1 mg?Why does eluent strength increase as solvent becomesless polar in reversed-phase chromatography, whereas eluentstrength increases as solvent becomes more polar in normal-phase chromatography? What kind of gradient is used in supercritical fluid chromatography?By the means of gas stoichiometry, how soaps are created?