Cobalamin Assay by the Radioisotope Tracer Method Division of Nutrition, Food and Drug Administration, Washington, D. C von Bruening, C.F., Neuss, J.D., Numerof, P., Kline, O.L.

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Cobalamin Assay by the Radioisotope Tracer Method : A Collaborative Study Report of the U.S.P.-N.F. Joint Panel von Bruening, C.F., Neuss, J.D., Numerof, P., Kline, O.L.

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The Spectrophotometric and Polarographic Determination of Isonicotinic Acid Hydrazide von Neuss, J.D., Seagers, W.J., Mader, W.J.

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The Identification and Determination of N-Allylnormorphine Hydrochloride von Seagers, W.J., Neuss, J.D., Mader, W.J.

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A Chemical Assay for Salts of Dihydrostreptomycin von Colon, A.A., Herpich, G.E., Johl, Rosemary G., Neuss, J.D., Frediani, H.A.

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The assay of relatively pure benzylpenicillin by ultraviolet absorption von Colon, A.A., Herpich, G.E., Neuss, J.D., Frediani, H.A.

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