What is Internal standard HPLC / GC- How to USE

Internal standard how we have to used? Internal standard 1. Quantatives analylsis 2. Purpose is 3. Selection process 4. Example is Quantatives analylsis main three parts • External standard • Internal standard • Standard addition External standard Here we find...

Gas chromatography (GC) TYPE OF DETECTOR?

Ans:Flame lonisation Detector (FID)Thermal Conductivity Detector (TCD)Nitrogen Phosphorus Detector (NPD)Electron Capture Detector (ECD)Flame Photometric Detector (FPD)Photoionisation Detector (PID)Electrolytic Conductivity Detector (ELCD)Mass Spectrometer (MS) #HPLC...