Letters to Editor
nature 164, 1135-1135 (31 December 1949) | doi:10.1038/1641135a0
Estimation of ‘Hetrazan’ in Body Fluids
M. LUBRAN
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THE estimation of ‘Hetrazan’ (1-diethylcarbamyl-4-methyl piperazine hydrochloride), which has been recently introduced for the treatment of human fllariasis due to Wüchereria bancrofti1, may be carried out by a ‘dye-laking’ method, similar in principle to the methods developed for organic bases by Brodie and Udenfriend2.
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