Directly suspended droplet microextraction coupled with high performance liquid chromatography: A rapid and sensitive method for acetaldehyde assay in peritoneal dialysis fluids

► An effective method for the detection of trace levels of acetaldehyde in peritoneal dialysis fluids (PDFs). ► Analysis of acetaldehyde via 2,4-dinitrophenylhydrazone (DNPH). ► Directly suspended droplet microextraction technique (DSDME) coupled with HPLC.