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C <br />i <br /> <br />A i C 1 <br />Numerow atudie+ hwe bean performed on tlfe effitaty of the autoandya^r method fw <br />cyanide andyda on mtnlnp relaud a4wout aoluttone. TTIe reauh,! 0f came of tMu ^ntdlet <br />an nperted by 6m1th ane eaudda, 11pp11. Appended to this Niter are deL ham tvro such <br />atudNe, whkh en deaalbed below. <br />Studv e'1: Table 2.3 pivea a campar4on of Saul cyanide dWnnlnrtlone In mtnlnp meted <br />rolutlona by the manual method end tM eutoanalytar method, IUSEPA Metlwda 8070 end <br />x012 nepeedwlyl• lNhll^ the merlyai method pew cyanide vduea In the nnpe antlalDetad <br />et 0.006 to 0.020 mpfl, MO autanalyaer nluea were open oMer at mapnltuda hlpher. <br />Swdy r2: T^bl^ 2.4 nee day from en lnurlabornory arudy when two UbontorNa wad the <br />m^nud tool aVanlae method end ^ third laboratory the ^utaenelygr method, The <br />eutoenalyaar wluet were lountl to M two to three dmet t1N value. obUlnad by both <br />4bw^toriaa udnp the maraud method. <br />6mhh end Madder oondude }ram their atndlaa end •xperlance that: '..If h la propo^ed to <br />uea Ne evto^nehwr technidw for routine datarmineAon of told cyanide, a oomp^ndw <br />^[udy should ba made with mmud dUtlll^[lon data to ^nwre that ih0 rotoenalvur mKhod <br />la appropriate for tM ample matrln belnp •wfuated', ! papa 30, eacdon 2 ..21. They <br />conclude alto that the manual method, when pariormed by a skilled technlclan, k mote <br />nibble than the autoenalyur m^thod. Thle 4 pankulerly true ^t wry low Iwde of cyaalde <br />3,4,2 Lyalmater L3 amplee <br />Bated on the above Geecriptlon, It 4 aDDarent that Me templae eolllcted from the L3 <br />lyaimeter are not amenable to accurate andya4 for told cyanid. ualnp en sutoanelyaer <br />teenn;pw et tM detection laude /eaulrad, Le 0.005 to O.Ot 5 mprL. <br />The hiphty +d;ne matrix wiU fi^va v;ROdty af}e[T+ In the pho;omeur ueC for mfecuremonr <br />and wig result 1n Cecrca ce In th1 ire^+mirt" 6prr tra~pti ;hf ccf_ A+ +~ch, rnb K'.I: CIYf f <br />cv•~"we •^tdin; rD+ GYI ^ CC l,n ~et1 frf [San Ctrpt ~;tJ 1Cr Cc1e~m:n;: on Ire Gr nccnr_ <br />A'~~C +:'t!'1~;',. Ir. rat iFlr Cr :~f /.CC: ~~at/ tni; ~'t•I. Ihr IY.il'~ir Cr I"Q a;arff Tl ~![ M' <br />Tna a6a+e fppi.ft SC Ct ~~CUI+;. nfafr, pf rl.ul^rlV [7"tiJE. in tn• umplf. Tna~r prf een¢f <br />wfli re+~K in I~p hr eunrlnp in iha pnolome;rlc mcpeuri mfn; ceA. spun rf whiny In a <br />DC+~:~~a Inlfr}ennc• In the andytlcel method pwinp a }elcc de:et;lon for cyen~ds. <br />