Link to Lecture Note [Spectrophotometer and Colorimeter]⬇️⬇️⬇️ https://docs.google.com/presentation/d/1IgIafHE_Po1mBrdKVq5sE_SQadPjo5ac/edit?usp=drivesdk&ouid=106953662450776113136&rtpof=true&sd=true Link to Lecture Note [Chromatography]⬇️⬇️⬇️ https://drive.google.com/file/d/1LFJE69sZ80pWPn4DD15uVMPhYIJjSTHR/view?usp=drivesdk