Document pByY0pNJaJ8rzdVd5Om6Nz8v6

SERO LO GI CA L, i BA CT ERI O LO GI CA L, CH EM I CA L, X- RAY AN D PA TH O LO GI CAL A N A LYSES j-.*/LP OFFICE O f R. B. H. GRADWOHL, M. D. DIRECTOR GRADWOHL LABORATORIES THjjPASTEUR INSTITUTE OF ST. LOUIS 3514 LUCAS AVENUE r - TELEPHONE, JEFFERSON 9250 I ST, LOUIS, MO. March 13, 1935 DKUCreni.ntitvcReiernorinbsnieagtrtytiL,eo.'bOfohKCrioaeithnoocreiynnoaftiApplied Physiology My dear Dr, Kehoe: aanlrdeahdayvereeanIdhoaiynveedJortheuearmdnavol evfreoyrrmmth.uechr.epSroimnets ovfetrhyemcaIrehfaudlly 'iIon/fiblewtlhghyiasott?ouIhkhaRinnaIedvdgelayy`rwodcuirnh,igettcheketnhreethwreiaisgtnhaaarldneydinsncigssloeetoshefewdl,heoeaartddhbeinrirnaierIyvfaimasacbnresairtlgaryha,sctist , pthoeinpt"oin-tII-Ofsh'cyaoalurlrywapioplnlregtchiiveaeteremgleitutlhvaeerr-yaexnmaaculytchsd.isetfariolms tfrhoims with you, nTahmereelyi,ssatinpoptlheedr pcoeilnlst/ aIndwolueladdlipkoeisotonindgis.cuss Schi.lling Ain$ Boeurlpinrobanadblytra'mnoswla,teIdshpeisntbosoomke"TtihmeeB.wloiotdh bPeiccatmuere"imfproremsseCdermwainthinthtoe Eimnpgolirstahn.ce'Tohfilethev/itthhichli'md,roIp hmpainaeevdrstheeuors:duiotersryiseotdhfhodoefipterbeteel,eorvmmomepdrialnokasyeinitxeingsa'ocmneaini,bnooatuthitroebonrasseisnmovdoaepnnunhystiaytlmril-cylfoi,nveptemhuhsnpaelcvxoItyiaanemctgsiaoirnndoraoi,ftenidoeaanndsltoehuaitd's vatfiihssonieirnwmionouspsv,cpmhteohnreermaatmaruosrne.?aynlinejteyde&aarrttf.shooaiulnayndItcdodmusinhaespmoitanemurprge_lamldenittnhhlcieeeockdaretsrthhoeinstiiboccokkbtrhaaaesddstkirrooootphnppyhiocimmuolkirfeecttdhoShporpocodudihpn,niwiclotIltihniatnahhtniagoodtf'nhiset this and -vether or not you have any data similar to this or to any expeLienees remain Th a :ing of this kind. rou, and with very kind regards, I beg f00373 Very sincerely yours, N24619 Analysis of Lead in Viscera. Except where material contains quantities of calcium and fat Weigh. ! Introduce suitable quantities into 800 c.c. Pyrex Kjeldahl flasks, with 10 to 20 c.c. boncentrated Nitric Acid, 7 c.c. concentrated Hydrochloric Acid, 20 c.c. concent|rated Sulphuric Acid. Take down to a char over electric burner. Destroy the chajr by additions frequently of snail amounts of concentrated Nitric Acid. Near the end of the process Add 5 c.c. 60 per cent perchloric acid. Add additional nitric acid until no char appears on evaporation to fumes of Sulphuric Acid. z' ; Evaporate the material to small amount or volume. Treat with 10 cic. concentrated Hydrochloric Acid and ; 200 c.c. water. j . Boil to dissolve the salts, rinse out the flask, using hot water, into a 600 c.c. flask. Carry the regular analysis on from this point. 00374