n-Alkanes C20-C34, all even + pristane/phytane, 17 analytes,1x1mL 0635,19 Pristane 0629,20 Phytane 1140,20 n-Eicosane 1141,21 n-Heneicosane 1142,22 n-Docosane 1143,23 n-Tricosane 1144,24 n-Tetracosane 1145,25 n-Pentacosane 1146,26