25 th Juns, 1956 Pr. Wrx- & SMOKE M-P PWXRAWR of I- The present prograsome of the looks Analysis Orcup consists 1) Physical measurements of Cigarette and Smoke Tmoperatures 2) quantitative Analysis of neutral, non-volatile (hTdrocarboz) fraction for 3s4A*nzpyrsn* This progre-9 may be ectended in two voyst a) Qualitative Au&17sis of wake directed towards discovering the nature and structure of components in make. b) Quantitative Analysis of smoks, for gremps of mobstancess e.g. acids, IVVI.4A& arts. We may appraise thoose, two paths separately. - - - - - - - - - - This is of value in discovering other compounds present in maoks the ortractures of which are hithorto unknown. It W be applied to each of the fundamental snake fractions - acidic, basic or neutral. The acidic fraction may be expected to consist of organic acidas mostly of the paraffinic series, e.g. awtic, propionics butyric acids otc., and of phenolic empow3da, derived from the pyrolysis of the polyphenols and ta=izs prosent in tbe loaf. The b"ic fraction vill consist largely of alkaloids and their dogradation products, i&ile the neutral fracUon will be forned from hydrocarbons, -=-a, sorters, aldehydes, ketones, sterols (if they survive pyrolysis), torpenes sts. The character of the saoks from a cigarette vill be fc-r-med by the Interaction of those Mrs~ fractions vith the &mummy orgaus of Usto and small and idth the pbpiologiml response of the body. Thus' the 11-rah-ess of a smoke may be related to the presence of certain &aids or of alddWd", especially formaldshydo and srotonaldsb7dej Us aromatic Nature my be related to certain tezpamoU substances, sorters, ketones and mame 4rdrosarbo"I the physiological. response of the body will largely be determined by alkaloids, **J9. nicotine, &gL-nioctins and their degradation products and by saide andror snmbnia. This qualitative ---Iys4s my be astried out in two main ways. i) IV-T-tq-" Or"VRA12AMAX On -Iuxim& Or other absorbents. This uIll be monsuhat similar to that already adopt" for the assaW of bmugTrens# dKeept that other solvent systooss, idU be employed md fractions, other than that sontainim bp will be examined. bufficiont material Idu Re" to be isolated in a pure torn tor ni-c-11mis and for spectrometric aclaination. The VV aboorption spectrum (daterglaod is tht VVIAVW win tell a good deal aboat oonjugated systems, e.g. arommUs by ft-l-w . Wra, red absorption idll tell us more about nom-ocnjv4;LW substane", 0, g' sterols, ofters, tarponse OU. U) I--- Fl- -a QW-to.2-m-kv *.A N,~Sr Ph-e-tca-r--kv - VC bjj the advantag" that it requires vary small asounts of substances, it wq be used on volatile or slightly volatile substances, e.g. b.ps up to )0000, 0- BATCo document for Province of British Columbia 2 November 1999 and that it in rou_-Jay quantitative in response. A disadvant4ge is that if sufficient, aatorial in required for quantitative sticroanalysis or spectral cm-ination. of -k- was, then a large solma oust be used and some trapping mysten dievised. Paper chromatograpbr is of value for studying non-volat4le rabstano" which any be identified by charagUristia solour roaations carried out on the paper. At first night, it would appear to have little application toths neutral fraotic% but a47 be of value in det*oting the premme, of -11-1-40a and degradation products. Aw,'unp-t row,'-" for this type of work om&U+,o of the usual laboratory glass apparatus for %--A""g the stibstanoses, chroastographia oolums *to. A Uvispek should be available for UV absorption spotra and w7 eclorizetric work. An infra, red sp9atromieter would be, of inostizable value for &W of the classes of compomdo 34kal to be ancomntered. VPQ apparatuses are available oomerciallyp but the general oonosns~" , of opb4c, at the resectsympoaim was that it was still best to 44* one's am apparatus. Far tbis, an xq)lM~r and recording potAnticaster are nooessar7. The detecting oalls om be constructed easily if they are of the litharouster tnw. b) qn-titatiVg A,,.Iv-m4M This follows the lima of mob that has been. done before by other workers. The smaks asy be classified into gross oompoutntip, **go acids, bases and andlysom carried out for Total T"Ile Aoidso Total Volatile Bases, Total Nitrogen, eto. The value of this Is doubtful uAlese it is related to a syvtonatic progranne of leaf analysis carried out simultaneously. It should be possible to apply VPC analysis to the acidic and basic fractiom in a quantitative mannar and so combine the quantitative and qualitative aspects on theme fractions. The neutral fraction of smoke is likely to contain so types of sompounds as to ask* TPC of little u" for son* time as a quantitative tool for this work. It would appaw that at present wgt advanes ean be saft met quickly an ths Qualitative Analysis of moke. M analysis in a nev Ual whiek is adaptable to either qualitative or qumtitatiye anLIpis of mm*kej, bat it %M take time to perfect the apparatus required, and the toohniqme to be aupyrW. It in wMeated that initially Wrk should be on the qualit&t-4ve analysis of sacke using conventional o1nomategrapbr and that slzultanscusI7 a start be a&& with ecustructing a VPC apparatus vhiah can be later Owlayed eitker for qualitative or qaactitatiTo Procedures. Wentuallyl, It in envisaged that all analytical procedures "n be tied in with a programm of leaf analysis by grades mWor count;ft" but this It definitely & long-ters viev. DGF/VC CZ> BATCO document for Province of BritiSh Columbia 2 November 1999