TY - JOUR AU - William Kelly AU - Jacqueline Mann C2 - Rapid Communications in Mass Spectrometry DA - 2005-11-01 LA - en M1 - 19 PB - Rapid Communications in Mass Spectrometry PY - 2005 TI - Measurement of Sulfur Isotopic Composition by Multi-Detector Thermal Ionization Mass Spectrometry (MD-TIMS) Using a 33S-36S Double Spike ER -