TY - RPRT TI - Lipid concentrations in standard reference material (SRM) 1950: results from an interlaboratory comparison exercise for lipidomics AU - Bowden, John A AU - Heckert, Alan AU - Ulmer, Candice Z AU - Jones, Christina M PY - 2017 PB - National Institute of Standards and Technology CY - Gaithersburg, MD SN - NIST IR 8185 DO - 10.6028/NIST.IR.8185 ER -