Evaluation of Some Spectroscopic Techniques for Trace Elements Assessment in Human Biological Samples During 2000-2022: (A-Review)

Trace elements (TEs) are the chemical components that naturally occur in very minute quantities. They important and vital for good development optimal metabolic functioning of human organisms. According to WHO classification there about twenty known TEs. These categorized three main groups, essential, non-essential toxic This review provides some detailed information's criteria needed assess TEs levels different biological samples (HBSs) using most used spectroscopic techniques (STs). Also, this covers fundamental basic principles underlying STs have been assessment HBSs over last 22 years. Furthermore, also focuses on instrumentations operating conditions based electromagnetic radiation (ER) UV/Visible region transition bounding electrons. include absorption, emission, luminescence (photoluminescence chemiluminescence).