Quantitative Chemical Analysis — Simple

Measures the volume of a reagent (titrant) reacting with the sample. This is most commonly seen in acid-base titrations.

These use the interaction of light with matter. Tools like UV-Vis or Atomic Absorption spectroscopy measure how much light a sample absorbs to determine its concentration. Quantitative Chemical Analysis

"Quantitative Chemical Analysis" is the process of determining the (the amount) of one, several, or all particular substances present in a sample. While qualitative analysis tells you what is in a sample, quantitative analysis tells you how much . Measures the volume of a reagent (titrant) reacting