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Th. inrcdcrivc .{Ist of sro6B. p€rioG dd tlshq$ h6 beq peqled nr T.bte 2.<br />
Thr hish6r oon€.r.arion or piyic &id wG tdnd ro b. in lne unfonificd arsh *totc<br />
whcal nour samples white tlE mldhum ph),lic &id @nlcnt w6 folnd to be in T,<br />
(elcmenl.l ion .nd zirc sltfola) ar 60 ddys ofslor.ge p.riod. Th. trsl,nc,t Tr o.|!jncd<br />
elcncntdl ion which nighl luve rc&l.d qi6 phyric ocid nore i etrsivety ss @nlped<br />
to rhe dr otth. fonirion.l. The dsa$ i,r phytic &id 6n|. tor tBrnenB Tr lnd Ta<br />
Gl.merral i6i) 6 66n&ed lo r0 (@nrroD er Tr (NoFeEDTA) indic.led fi€ inrcGity<br />
or rc&riviry of rhee rorrificorrs wilh phyric dcid s mational @1i6.<br />
l €r<strong>ac</strong>livs ellers of shrsge coodil o.j, lro.as€ inrcflars tu( uaonqL3 N<br />
evidcnt fom dE Esuhs giycn in ,r{bb I tr trr)' bo .nvisdsed trom th€ €sutrs rhlt<br />
EUI A nDiery in NIFeEDTA in rqttn.nE t.r and T, .cL!d I a clFl,ting lgcnt aor iion<br />
and did not let phtlic eid ro toro 6npl*s eirh i@ in N.F€EDTA ed orh.r<br />
cofrlon.nts ofth. 0our. INACG (1990) Eporled sihjl{ tslr, st tins lhal |hc nqior<br />
&lvmtag. ofNaFeED'lA over ortE ion foniriqnis is lhd it pFvcnrl ircn rom<br />
biodine qith !F phytio <strong>ac</strong>id Dr€senl i,r mery @@l lid legune Bnins, Lynch .r al<br />
(1993) d*cdH rhrt a popo!.n lolulion !o lhe probl.h of dyric aoid is lo u. i@n<br />
Ranuh (109t) €rplanEd rtd non ir NTLEDTA k clElqrqt viri EDIA, o<br />
conmonly u${ focl addiliv., rlis prevenh $E nor ton being bound ld phrlic &id.<br />
Th.t is no advetlge in lsins EDTA in whilc nour or uEdiuD ext@rioD flour ued io<br />
y6r l@vaFd bMd haking bur rheE d@s appq lo be good juslification ro ue il ir cr!<br />
nour u*d b n.re unt€awned bEart. Anjum sr a/. (20OZ r ob*fr.d r.21% prryrr ,cid in<br />
wborc whs. nour in P.kisr.nj ,he.B. Th. conqhrion ot phrtic *id tu li. oour<br />
simpr.s w& in clos agrcomcht wirh lhe oue give. by ToEc .r ,1. ( t 99l ) wbo srat d rb!|<br />
Dhy|lt s onsnut t-2%ofth. weishrofnD., @Eats.<br />
Ch.ry.n (1930) slden $at {t tow pl &d tow c.rion @n@lE{ion, phyrale-<br />
por.in conplexG @ fonn.n due {o di@r .t4l$r.ric in|G@tion, *hjt. .r pH > 6 ro ?,<br />
phytio scid-min..alproGin .ohpl.x is tomed wnich dis$iat.s !r hish Nai<br />
concenkslions. nEs complqes aDp.ar lo b. responsible tor lh. derqsed<br />
bioahilabiliry ot $e conptexed Ninsots did arc atso nbrc resisrdt ro pdreorlric<br />
dieEion ar low pH_
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