literature review
literature review
literature review
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Spcclrophotoneter detminalioa of abninun 6 complcx.3 wilh 5{ulfo4'<br />
diernyldi.o-2-dihydrcryuob€Eete i. thc Pt*n@ of beivlliun ws ..Poned bv T' M<br />
Ilorcn@ et d (n). Ar pE 4.? the re€cfl fom.d bdeh pink in . ralion I : I ligdd to aluninun<br />
h6 ! nold $!.rptivity (€ = a I' lo') ar 540 nm Molt i dfdi.g ftclds @ b. nasked with<br />
EDTA or fedocymide, sltilc gEs anou s of iopuritie mv be c6ov.d bv a 6pid trii$oclyldi..<br />
extdctio. ton 8 M hydtochlo.ic eid.<br />
T. Kba ct .1. (12) have .€pott€d the s@sation of i€chriium lion rh.nium bv liquid _<br />
liqui.l erLaclion wlh pobrsiun xanthale. Thc m.thod depnbed a siftPl. ud npid ne$od for<br />
quaftit !v. Fpdtion of ichn€riun fton .h.niun fd oth€r .l.m.nts bv extdclo' wilh<br />
xmthare ard Epon.d $c fado6 aff€ring rhe .Kdct'on<br />
C rohbndt .1 al. (13) have rcponed rhc ap€.trophotom€tdc dd.miiadon ol xdnate in<br />
elutio.s lt wB bas.d on rhe fomaiion .nd en6crion merhod of coPP€(D enlh3te The<br />
coefiicienl of vdiation it I O% al 40 ppm l.vel and 3 4 % at 4 ppm l€vcl and the losd lini of<br />
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