To better understand the effect of different LC-MS setups on metabolite detection, five laboratories analyzed 1298 standard compounds obtained from the MetaSci metabolite standard library, classified as 'Human Endosome' (HE), 'Food Exposome' (FE), 'Chemical Exposome' (CE), 'Microbiota Exposome' (...

Blood microsampling (BµS) devices collect less than 100 µL of blood, offering a less invasive and more cost-effective alternative to venipuncture. However, its metabolomic comparability to conventional samples remains unclear, and standardized BµS metabolomic workflows are lacking. This study com...