The study aims to identify the 24 testosterone injections taken from different illicit sources. The analytical investigation quantifying range and linearity of testosterone were based on the HPLC and LC-MS techniques where Sustanon 250® was chosen as a pharmaceutical standard against samples. The advanced performance such as great speed, sensitivity and higher selectivity of HPLC made it preferred choice for separation and identification method. For an accurate quantitative analysis, UV detection approach is combined with HPLC. The main advantage of HPLC method is that it does not need heating of the sample heating which decreases the risk of sample Continue reading...