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a TEI=HNCI'.JI=IES IPJC. TEL~303-7u2-~F,j~
<br />,. 682 . Anal Chem. 1881
<br />,tt. ~ + polymeric mediators and to other Oavoentyme systems.
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<br />20D2-2007.
<br />RECFIVL•'U fur review August 13,
<br />1991. This work woe etlppotted
<br />Energy, lliviainn of Materiels Scil
<br />Science (DE•AC02-76C1{06016).
<br />Trace Determination and Speciation of Cyanide 1
<br />Absorption Spectroscopy
<br />JDtfrey J. Roeontreter••' and Rodney K. Bkogorboe
<br />Chemiatry Department, Colorodo State Unfuersity, Fort CxlliRS, Colorpdo 80523
<br />By utlllzing a high relectlve reectlon brtwean Giver metal and
<br />oyanlde Iona, an apparatus end procedure for the anslytlcel
<br />delerminallon of equsous oyanlde aprelea hag barn devel-
<br />oped. The rapid enalyBla of tree cyenlde Itaa bean rohlered
<br />through Ihs use of pure silver fillers as the rsectlon medium
<br />and atomic ebsorpllon apedrowpy as the delecNon mrthod.
<br />Thle melhotlology hea allowed for the quantltatlve drteollon
<br />of cyanlda lone down fo the sub-parle•prr•bllllon level. By
<br />Incorporating aeledlve oxldetlon, kinetic rqulNbrla, and pho-
<br />lodlasoclatlon techniques, fha silver-cyanlda reaction lech-
<br />nlque hoe bean adapted 1n provide a mrana of categorlcelly
<br />apeclating equr0ua cyenlde compounds. The complrls sya-
<br />lem hea been shown to be free from common chlmlCel In-
<br />trrlerences, Including ihlocyanele. Thla detection system
<br />prOVlda6 high-speed cyenlde del9rminatlona with II111e to no
<br />sample preparallon or Inalrument supervlslOn.
<br />INTRODUCTION
<br />Cyallidee are used and prnduc¢d in malty industrial pru-
<br />cesaesand can he found in the effluents of mining operations,
<br />metal plating shops, and steel mills. The mining illdustty is
<br />by far the largest cnrlyumer of Cyanide, using approximately
<br />12006;.` •• ~f sodium cysllide per year (1). These induslriea
<br />t Yrosent a^ ~~ Chemiatry Department, Idaho Slate University,
<br />Ruatellu. ID ri3,. rv~,
<br />use and produc0 mainly inorgattl
<br />eluding ionic and moleeular•cyani
<br />plexes of varying stability. The earl
<br />profoundly diCCering toxicological
<br />is impottant to bx able W differenti
<br />forms of cyanide.
<br />Moat cymtide determinations
<br />Standard Methods (3), consist of a
<br />urination step. Tha primary nbjecti~
<br />include the removal n[ interCerena
<br />of cyanide species. Generally, all (
<br />fulfill Loth objectives, Species diCf
<br />varying thn dietillatian conditions. 7
<br />can bo grouped within widely uslxt a
<br />(3). The ffrat classification is for
<br />referring m species that mflrv exist ur
<br />conditious, ae the molecular acid
<br />(CN-). A second catoguty consists n1
<br />This category is further aubdilidell i
<br />CDmplexes. In this paper, the hlrt+ng
<br />to as cypnides not mnenable to chic
<br />important cleave includes Lryanides
<br />chlorinated water purification. St
<br />metnl cyar7des are roughly divide)
<br />slants with CNATCe having p p/t
<br />grefller. The final, and most wills
<br />cyanide classification, which ie th7
<br />ryanide species as shown by eq 1.
<br />s:~ iii
<br />
<br />Bon. teas, frx, 2875-292D.
<br />9, 128-136.
<br />m. 7BBe. 6x. 2473-2478,
<br />. 90C. 1888, 111, 2967-2358.
<br />1880, B1, 268-283.
<br />.•li.; Ye. L.; Creep. B. A.; Haller,
<br />X90, 29. 82-84.
<br />. Dkamviv, Y,; 9k01helm, T. J.
<br />Skvlhelm, 7. A.; Okemo[o, Y.
<br />r9.
<br />1.; Okertmc, V. J. Chem. Soc..
<br />Caren, H. 1.; Dkam010. V.; 5K0•
<br />S?B. 31-J7.
<br />In6paNl, T.; Okemolo. Y.; 6ko-
<br />Fla, 23-30.
<br />SYMOn Garrpavidv Revlaw and
<br />PA. 1987; D 259.
<br />9enchei, J. AMI. Cfr4». Acfe
<br />7atlroanal. Cberrr. 1988. 290,
<br />rm. 7980, 52, 1198-1205.
<br />s, H. P. Anal. Chem. 1988. 60.
<br />0. Accepted dxnuary 2,
<br />the U.S. Department oC
<br />e, Office of Rasic EnerLy
<br />by Atomic
<br />cyanide compounds, in-
<br />I and metal •.5tlide com-
<br />JUafowls of ryanide have
<br />:ffocta (2). As a result, it
<br />Ile bel.ween these various
<br />including the A°~
<br />preparative and
<br />es of the prepp•
<br />s and th¢ diff, : t
<br />'id distillation abed to
<br />rentiation ir, ach;,•ved by
<br />w various cyanide species
<br />Id accepted C4LCCifi•....ny
<br />tee or pvailebl¢ cy aul.:e,
<br />3or norm7il envvonr,lcl;tal
<br />IG'N) of the cyenid5 ion
<br />metal cyanide complexes.
<br />nu strong ~md rvr .4 metal
<br />;omplexes,.illl~° rfarred
<br />•inatiun(C!NA7L, :hie
<br />that are not affected by
<br />ung (CNATC) and week
<br />by their fnrmotion con
<br />oC approximately 3~
<br />y used, class is Y ,..r
<br />sum total of the a:inue
<br />This is the ~cam~~ .l es•
<br />x009.2700,'91/0383•^nB?s~2 50yo ~' 1981 Amerlcen GhmMral RnrbM
<br />
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