literature review

Jmaluddin a .1. h!re rertly (8D EPoned . lp.drophoroset ic detd6ination of
@ppa(tr) 6 @npld6 *ith 2, s{im.rcaptdl, l,4-lnildidole (DMTD) in sliglilv a€idi€
tquc@ $lutior The m€thd ob"ys Bd s ltw in th. nrg. 0 r - 2 0 mg/ol *ith a'be.ptioa
mnmun 390 NL nold ab$Alivily 5.65 , lO ' mof ' cm ',
Sudell s $Nuvitv m foMd
lO na cnr The nerhod M .lplied o. $c Slandrd R.fc@e Materials d w€I d on $@
ind$rrial @ples, envilome.tzl w.!d sadPl.s, biologi@l dd $il mpl6.
Raia Bhushu et al (82) 'eponed 1h. spcdrcphotomet'ic der.mination of cobalt ([l) bv
$cond derivativ€ spectoscopy as @npl.x., witb 2, 2_Diprtidyl 2-be@thidolhvd!&one
(DPBH) ligand having d abrotplio. naxidun at 530 nn in woaldv acidic to alkaline media
The cohplex was e*ractable inlo chlorofod, b.Den. dd 4'nerhvlpe a-2 one Chlorofom
enract hs an absorDtiod ndinuh a1 504 tn iD th. pH rangc 2 0 - 9 l The nolar ab$Ativitl.s
dd sef,sitivities in tbe propo*d p@edute with out dd with .xtraction de 2 50 i l0- eol cn
2 35 ng cn: a.d 3 43 ' roa nol-rcnr, I 72 ' lor mof'cm' resp@tively Both methods w.r.
*l.ctivc fo. 6balt none of o(hq iotu i c.fcEd ii thc @ball d.tminarion The dethod h4
hdn rppli.d turthe ddmjnarion of @b.lt in tr.rddd i.o. &d st6l @ples
So..rmDhorondric de!.mi.ation of db.lt([) bv d.nwaive sP{fophotondry 6
conDlex.s eilh 2-plridyl_:r_$lphoph€nyl mcthlnoD. 2- (5-Nnre) pFdvl hvdEore (PSPI!
rcpon.d by Tsugikatus d il (83). Th. compl.x ws dpidlv ondized abov€ prl 2 ttd gav'
stable cobalt OII) onplex wilh abrorption maximum at 496 nd fi€ B*is law wd obeved in
the range of o 05 -l.0 lr8 ml rcn ra.d mold absorPivitv of the compl€x Ms 5.69 x lohol
lcm L Th.methodwsaDpliedtothedelcmin.tionof cobalt in$eel samples
Ranm a sl (s4) halc r.poned ih. spcctopholom.inc det€nnination of oercury (lI) in
carionic nicelld media of CTAB bv d.riv.tiv. rt c.tosoPv a conplexes wilh l_(_2_
prridyluo)-2-uphihol CAI). I1t Fnsitivny and sl.civnv of nelhod *a imProved duc lo
micelle ud dqi€rive spe1rospy Th. n.rhod w.s lpPli.d to m.r@ry @nlaining Pesricid's
tLr Bhrjm d al. (st h,v. E?on.d th. slcclbpnoton tic det mindion of m@.v (U)
d conptdes vih dirnizone in niccllr m.dir ofT.iron X-IOO bv ddizlit spccircspv Th.