Document 6w0EE7pJwxdQ84bg695nVBMd6

<?) fOl**OG*APHV ANU VOLTAMMfTOY IN CHGANlC fNV!*ONMNTAL ANALYSIS Perr 7'J<nn. Otpt of Chemiitiy. Cl*rktn College of Technology. Poisdam, he* YoiW 0676 Comparison I I** three most Important elvcnovMalr''C*' m*ihod. v*m*fy d t. petrography, d.Mte"hai Pub* pologr*H'y, and linear sweep votlem. m*try, frOT III* pom! of vew of h#ir pr*<lK*l application* Will b* g*v*n I he limit* pf pp'r(*1rOni * **# rnd'vkjuel ieehmq..i*s Wi'h retpet' to classes of com- pOvndt, present* end mutual pos|in of etecnoactive group* and tobtlituent* end *entif*vi*y wifi be discussed Sptofit cun to be discussed will Include e4 carbon dnulfide in the imotphef he> conversion ml duh*c*rbema*, deiermtnalion of nirro compound* >n rfte lrnoiplere end of mirotemmei m v*ru* materiel*. daterrmne- >on of Insecticides residues and Ol phenolic material*. (IT) SPCCIATjON Of AAtftllNT LEVUS Of Mf porlmentof Chem.t*y Un.ve.s->Y gf ' PlOkUlelf mvrcyfy, alem*nr*J m(,<vy , non pe'rnvlefft >norg*rN< crv^-pe^-vit determ.rwd down lo lh* 0 1 - } ng m , tubes and a dc diich*rj* e^'nnon ipet'rotcDpv ' IndiceN th#r elmaAii -t,*,c^y , #nawr sign.lkanr smounli af mefKv,rr*iCjir iJ| jr^d compounds also are 'ou^d O-r open ocss- * r and elemenfaf mercury *( t.e n iie, r^r,.n p,r Air rdor* n generally mv<h h-gr>*i \ ntr(>y ! TOO n>9 m-*. ekmen'*i mr-cu-y >1 'K* m*tOf p bfomethyiated by io-i b*e'* Eneor i** risei r mercury in neture* w*>e's mv t>e iim.red *n *v (I) HIGH ICSOtUIION MASS SrtOOMC1V IN ENVIllONMiNlAl ORGANIC 1 compfeies and metbyimercury nn lype CO" -nr sidites efamen'sl mercury; dim*rryir-*.t j. v STUDIES A. L ftv'hng#me, Space Sciences laboratory, University 4 Cals- compounds- Iom, berkaley. CiMoit'i 47?0 TH development of ieeM*n* 9*1 chromeroQraphy.twgh resolution mess DC drKharge datac^on tf<*m'Qvei Ke.e r-v mercury m water >mo e>*n>emai Y Jll r pociromeliy (GC HRMSl * pioducrng accurate mas* measurement* of ell pati fyf e compounds and inorganic n<#,tyry co*1 in eech spectrum - pnvide* #iemenr#l composition* which signifkanity aid m ganic mercury appears le be rhe ma,er ,* , MiuCfurt end compound id*ntifk#l>on. Ih* information especially yialyl far the charaftritation of conspta* organ* mature* from environment! source* luch it wev'e water*. saehmanit end bfOtcgks' usiuei which have been polluted with paitottvm end synthetic game* A variety o4 GC method* have been biological samples but lack *uffC'nr sa^,inv.ir appfreanops The perforittence of the instrumentation will be discussed, s well *s sumplw of work Currently m progress m Ho nvrrenm*nll field. Acknowledgement of fmanoel Suppl= tnvfnm#niel Protection Agency Grenf RIOSOlbOl end National lnstiiu*es of Health G**rd RR?TbO?. <i?) x-ray fluorescence tichnhjvi:> tr, ANALYSIS Oawd C. Camp, liwityt L-v# 94SM f9) DUST ANALYSIS Vf PHYSICAL METHODS H. MaUs*. E. P*lt end H. May, Insfitute for Analytical ChemHMy end MtciocheirHSiry, TachmeaT Institute. Vienne, Awjlr+e Energy and wavelength dispersive #, r> end WOXIT) ere being *ppf>ed to th* ne'yi.s nrwrhods cars yt*M uenUtariv* .nfr>im4'*0n i- r mimmum to no sample prepa>#tion ThvT w In ordet 10 gain proper informations about Ihf harm o< dust die Oeect Single element dater munition only will never teed to ihe right tOncUisrona oven if ihe to aulomeiad sample *fl|lytf* <n >aL>ei*iorw% responsibitir*es beat merhoda are used Wavelength dispersive ipe:'rome>rT >i ar> , Thertfose we mint heve methods end k hemet for o) the eccurett and sensitive de'errrvnetion of single element*, b> the proper correlation 4 chemical e'emenls in dust samples. cT Warning tnformeiion about the chemical > physical bending I dvsf components, end rf) meeiuting particle PI* and gaining mrpholgket information, tr h ab*elute4y essant*al to balance the chem<el results end to show the com pleteness o4 enalysn. Hre we ere efreedy confronted with a very gieat o<ffvtty ; technique, wh<t* ene-gy dspari va * i<eii*t'v 1 After briefly presen*ir%o th* pniXipIvt q! b*>'> the lanet. examples of th# sr#;'ra #n,i ., viing photon, filtered my rvW sciov.t> r 'j q lien method* will bv p'*t*'>r*d The.i r*r*i.ve Resuhs from * >Mtnt mienonipainon m-c 6 different enaly'rcal lethnipuai w-n be evaluate EDXC6 t viabiMy fo* r * n-vii cfrm.iv ' because in practice we have moslty only a few nutligiamt of e sample and very often trace etamemt ee *h most essantiaf ones- Therefore we need micro methods In the Mace tang and should be able to determine up to 90 elements. Techniqi^ti rn addition to TONIS snj tv:'X*t specvophotometvy trillion srecou^ry. *i> l . study snowad that CDxfS P>uvrr*v-J tui^' a* ie The cheffucet and physical bonding dicleles also the ao*ubrlrty end henepor. ' and accuracies 4 about r 10*. tp a t febon fend hitthermpro ilte ieeci*n> f the etemenis m human bodies Particle \ somewhat lei gw ero<* lor alenienti down ip t Uo end motphotogy have a greet influence on the b*o4og*el effect of dust. The inuestrgeMons f these pheno-ne\a can be done most successfully by uae > j of physical in#ty*f mtH^ods hke IMPA, IMMA, It, GC. M end odwia ^ (13) ANALYSIS AND IWON'ANCl Of ChTi In order to obtain meaningful results with these methods the proper sampling technique* have to be applied which it stiff the greatest problem in dust analysis. NANIS IN HEAVY vEfAi$ POimttCN 4 Chemiiuy, Unrve>st`y el M^siuui*. Coiv Columbia, Mrisourr 66701 (19 OftOftlHAftO DtfttNiOFUftAN} RECENT ANALYTICAL STUDltt. I'wm H. Pometentg* Tortyf J farretf end John A G. loach, Piviaton 4 Chemical Technology, Rwtgeu o> foods, food end Drug Administration, Washington, O.C CMorwwSed d*ben/4urens of a wide range of thtorino content heve been repaired as contamtnemt e4 several types of wtdefy used tndvstriet chemkaU. AuelleMe leaPty infernterton on thio>.netfd dibentofuens, et waff as ie*rcity data on the related chlorinated difeenr p-d`o*tt, suggest* porentraify hatardoos chkoinated dibencpfurens may be reaching the environment along wrih the contriteicleffy weed chemicals rn which ihey are conramments. Evidence wtd be presented tor (he pretence of chtoonawd d^eniofurans in several commercial chioiinered b>phenyt |PC#I mi*iu*ei f U.S. menufac* lure and one made Ip Japan The cMoimeted dibenioluien* were sapereied from the buHi of IIw bipiienyt* by calumn chiomtregraphy and enefyxed using get chromatograpfry rxreM tpeeltome'ry The degiee t chkHinaton m the dtbent4uans found end epprosimet* leveh of d*beniofurens in (he PCI miahtres . will be drscinted Using available chlorinated drbemoEurens ol known structure, taletrve reten Desprie the wa(t-dee*ved *tie"ncn oivw heavy metal*. Iinle convde*i>on (*% t natural and syntiseiic i.g.n w^,v-ti pijy a > Cheletirtg agents in werar niar o> g>"'c I'j acid) and from indwilnaf * let'Cteimar ro't is used m the ueatntenr t . 41c fui m~- v fng. and as a chemKal reagr-nr So=''e r* i . water. Replactn-em of eta'erger.* ui'O'.-Mif' a result in the dischjige t tai.w qua->i i.r* u treatment facilities wh*ie, *n vf>'*e cn , rifafy con*ide*aiHon ot cKer^i.-.^ r(K"H s,k quality research and mon.ier.ng Much of rhe rfetirh of LAc,ir,,iijo * <. result ef a tack ol ArA^vi*caf tve+'* in c*. i. > epproache*. are druriM >n n^s r>. e O* . o4 copper frn a ilighity tolvb'a ccn r-r > af tetaf nreng heavy **! <hairin criu potametat. A similar approach >s uie>r tion tunes were determined on a oon-poler nd several pofer GlC fiqwid phases. The resulting d** show ihe superior sepae<ion cap*bi't*e* o4 dw voter liquid phase n a iaton e*ch*ng*i in itw c.-im4** *' clwl*trfg egem *njly-.i basvd upon Un---1 phases, perntulftly for resolution of peaks of isomer< chlorinated dibenaofuretss. eacheng* atom< sbiOipiao dc'ft' on a'f u>k d. <r/7r MOMS 20086