TY - RPRT TI - Determination of trace elements in planktonic microcrustaceans using total reflection X-ray fluorescence (TXRF): first results from two Chilean lakes. AU - Stefan Woelfl AU - Margarete Mages AU - Susana Mercado AU - Lorena Villalobos AU - Mihály Ovári AU - Francisco Encina PY - 2003 DO - 10.1007/s00216-003-2273-7 UR - https://pubmed.ncbi.nlm.nih.gov/14579010/ ID - 14579010 ER -