TY - JOUR AU - Jacqueline Mann AU - William Kelly 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 (¿34S) by Multiple-Collector Thermal Ionization Mass Spectrometry using a 33S-36S Double Spike ER -