Stool samples can be extracted directly and efficiently using the IDK Stool Sample Application System, which allows easy, clean and precise preparation of sample extracts. Each tube contains 1.5 ml of IDKExtract universal stool extraction buffer, creating a constant dilution of 1:100 when the 15 mg stool sample is added using the precise sampling stick. The Stool Sample Application System can be loaded directly onto many analysers. This system enables the determination of multiple parameters using IDK ELISAs (e.g. calprotectin, pancreatic elastase, haemoglobin, faecal bile acids, lactoferrin) from one single stool sample extract, saving time and money. Stool extracts are stable for up to 7 days at 2-8 °C.