A general-purpose manifold is d escd bed , which is usef ul for numerous proced ures involving tritium gas and tritium-labeled mate rials.M ethods a re given in detail fOI' (a) converting t ritium gas to tritium oxide, (b) preparing tritium-labeled li t hium borohy dride, and (c) conductin g a variety of r eaction s in a closed syste m.Auxili a ry eq uipme nt is shown, including water traps, reaction flasks, and apparatus for preparing solu tions an d makin g filtrat ions in closed systems.M ethods a rc presented fOI' assaying tritium-labeled \\"ater by (a) dissolvin g it in a phosph oric an h ydride-s ulfuric acid sollltion and counting in a windowl ess, gas-flow, proportional counter, 0 1' (b) convert in g it to hydroge n-t and assaying it in an ionization chamber.The use of tritium-labeled lithium bo rohy dride is i llustrated by t he preparation of D-gal actitol-l-t from D-galactose.Subseq ucnt papers will desc ribe t he use of th is a pparat us in the synt hes i s of tri t iu m-Iabeled e"l.rbollydrates.The d etail ed descrip tion of t ec hniq ues an d apparatu s sho uld be helpful to ot hers who are illte rested in us in g t ritium,
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Isbell et al. (1959) studied this question.