literature review

Ch.n-ll er al. (5?) h.v€ ..pon.d th. spcctoPhoromaric d.t€mn4don ot @bat a
@npl6* wrh 2-hydrcxy b.@tdchyde-5-Dm pvndvl hvdMne A epDhon proc€dur'
usidg sno'l colunn fill.d *irh Ambdlite IRC 718, in nicellar nedia lte detectioi lirut *as
Spdropholom.tric ddmination of molybdenun 6 @f,plex hronopvrcgillol €d
@rR) in lhe @cdld mcdia of €tyhrimedyl amnoniun bronid. (CTAB) dd or
nonylphqoxypolycrhory erhmol {oP) rcpdtcd by xi@rg .1 al. (s8). TlE Bars law M
obeyed in the range ofo 06 - o 8 pg witb molf lberptivity I I x 105 mol' chi and detecrion
Aljali cr al (59) hav. tcponcd the sp.dophotomedc daeminaiion of gold tkooen $c
lodation oapink sold elution in poly (oxy.thel6c) ieodyhnenyl .rhd krown as Trilon x-
100. which .ds both $ a r.dlcing .8cnt .nd sbbiliz.r An .be+tion maximun ar 5?3 m,
Bels la* w6 obey.d i. rhc rdge ofo - r5O ppm. Sddell s s.nsirrlity vs found a1 6 44 . I Oj
Specl.ophotohetric dethin.tion ofan aiionic surfacranr wirh liquid-liquid .xmction is
r.pond by Minon d al (601 Th. $diuo dod@ylsulph.r. (SDS) and Modani.c 6c w6
absoded ono lhe wdl of . PTFE ve$el by shaking. Tne mol6 absoqrivity for SDS ws 8 5 x
AM Cdcia a al. (61) havc rcpon.d th€ sp..trcphobndnc ddcmindion of iron,
cobalt, nick.l rnd copper sinultaneously as complexes wirh l, 5 bi(di,2-prridyl methylen.)
thi.ca6o.ohyd@ide (DPII{) wirh oulliv&i4€ c.libration.
,uai ei al (62) hav. .cponcd th. det.min.tion oaz(19 6 @npl*6 with $. oxrlate
Alidir Red S-z.(rv) The cdionic s$facldr cerylptridiniun chloride dd spErro8uonheric
delmination % cdi.d out