Download - Xac Dinh Ham Luong Chi Trong Rau Xanh
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
1/29
Faculty of Applied Chemistry
XC NH HM LNG CHTRONG RAU XANH
Nhm 1-2
Nguyn Th Yn Nhi
Ng Th M Dung
H Mnh Khang
L Trung Hiu
Nguyn Hong Minh
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
2/29
Faculty of Applied Chemistry
Gii thiu v rau xanh v vai tr ca n i vi conngi.
Gii thiu v ch v tc hi ca ch.Gii thiu v phng php F-AAS.
Phng php x l mu kh t.
Thc nghim v kt qu.
NI DUNG
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
3/29
Faculty of Applied Chemistry
GII THIU V RAU XANH V VAI TRCA N I VI CON NGI
Tm quan trng ca rau xanh Cung cp vitamin, mui khong
Cung cp cht x
Gip h tr tiu ha
Ngn nga cc bnh v tim mch.
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
4/29
Faculty of Applied Chemistry
Rau sch l rau khng b nhimbi cc tc nhn l,ha, sinh hcvt qu quy nh cho php.
Rau khng nhhngtisckhe con ngi.
GII THIU V RAU XANH V VAI TRCA N I VI CON NGI
Th no l rau sch?
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
5/29
Faculty of Applied Chemistry
Do trong rau b nhim vi khun, vi rt, k sinh trng
GII THIU V RAU XANH V VAI TRCA N I VI CON NGI
nhim sinh hc
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
6/29
Faculty of Applied Chemistry
nhim kim loi nng, ha cht bo v thc vt, chtph gia.
GII THIU V RAU XANH V VAI TRCA N I VI CON NGI
nhim ha hc
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
7/29
Faculty of Applied Chemistry
Do trong rau c cha: Sn, ct v s dng cc tia phngx bo qun rau.
GII THIU V RAU XANH V VAI TRCA N I VI CON NGI
nhim vt l
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
8/29
Faculty of Applied Chemistry
GII THIU V CH
Tnh cht vt l Ch l kim loi mu xm thm, rtmm, dlt mng, c cu trc kiu lpphng tm din,stht l 82 trong bnghthngtun hon.
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
9/29
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
10/29
Faculty of Applied Chemistry
Ch b oxi ha thnh lp oxit mu xm bao bc trn b mt
2Pb + O2 2PbO
Ch tc dng vi halogen v cc nguyn t phi kimPb + X2 PbX2
Ch chtc dng trn bmt acid HCl long v dung dchacid sunfuric < 80% v b bao bc bi lp mui kh tan
nhng i vi dung dch m hn ca cc acid ch cth tan v lpmui kh tan lpbovchuyn thnh hpcht tan.
PbCl2+ 2HCl H2PbCl4
PbSO4 + H2SO4 Pb(HSO4)2
GII THIU V CH
Tnh cht ha hc
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
11/29
Faculty of Applied Chemistry
Vi HNO3phnngvibt k nng no
3Pb + 8HNO3 3Pb(PN3)2 + 2NO + 4H2O
Ch khi c mt oxi c th tc dngvinc
2Pb + 2H2O + O2 Pb(OH)2
Ch c th tan trong acid acetic v cc dung dch cht
hu c khc2Pb + 4CH3COOH + O2 2Pb(CH3COO)2 + 2H2O
Khi un nng ch tc dngvi dung dchkim
Pb + 2KOH + 2H2O K2[Pb(OH)4] + H2
GII THIU V CH
Tnh cht ha hc
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
12/29
Faculty of Applied Chemistry
Dng trong xy dng,c qui ch, n v l mtphncanhiuhp kim.
N c s dng nh cht nhum trng trong sn,thnh phn mu trong trng men cbit l to mu v vng.
Ngoi ra, n cn c dng trong cc tm ngnchng phng x v trong nha PVC. Thm vo na l don c tnh chngn mn cao nn n c s dng cha cc chtn mn nh axit sulfuric.
GII THIU V CH
ng dng
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
13/29
Faculty of Applied Chemistry
Ch l mt kim loic c th gy tnhi cho hthnkinh, gy ra cc chngrilon no v mu
Tip xc lu ngy c th gy bnh thn, v cc cnaubt thnggingnhaubng v lm gimkh
nng sinh sn nam giiiviphn mang thai, khi tip xc vi ch mccao c thbxy thai
TC HI CA CH I VI CON NGI
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
14/29
Faculty of Applied Chemistry
Ch lm gin on qu trnh chuyn ha axit amino-levalinicsang photpho-billinnogen lm tng protoporphyrin t do tronghngcu v vydnnthiu mu
Ch ph hy myelin ca cc dy thn kinh ngoi bin lm gimsdntruynthn kinh vnng
Ch cn gy ra tn thng thn, lm gim chcnng gan
tm thi, gy au khp, au u,bun nn, aubng, mtmi,
TC HI CA CH I VI CON NGI
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
15/29
Faculty of Applied Chemistry
GII THIU PHNG PHP F-AAS
Nguyn tc
trng thi bnh thng th cc nguyn t khnghp thu hay bcxnng lngnhng khi chng tntitrng thi t do didng cc mhi nguyn tth chng s hp thu v bc x nng lng v minguyn t ny ch hp thu nhng bc x nht nhtngngvinhngbcx m chng c th pht ra
trong qu trnh pht x.
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
16/29
Faculty of Applied Chemistry
GII THIU PHNG PHP F-AAS
Nguyn tc
Khi nguyn t nhn nng lng chng chuyn ln
mcnnglng cao hngi l trng thi kch thch vqu trnh cgi l qu trnh hp thu nnglngca nguyn tt do trng thi hi v to ra phcanguyn t v ph ny c gi l ph hp thunguyn t.
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
17/29
Faculty of Applied Chemistry
GII THIU PHNG PHP F-AAS
Cc qu trnhcnthittrong phpophhpth nguynt:
Chn iu kin v mt loi trang b ph hp chuyn ha mu phn tch t trang thi u (rn haydung dch) thnh trng thi hica nguyn tt do.
Chiu chm tia sng bcxctrngca nguyn tcn phn tch qua mhi nguyn tvato ra.
Nhmththng my quang ph thu ton b chmtia sng, phn li v chn mt vch ph hp th ca
nguyn tcn nghin cuocngca n.
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
18/29
Faculty of Applied Chemistry
GII THIU PHNG PHP F-AAS
u im
C nhy v chnlc cao.
Trong nhiutrnghp khng cn lm giu nguyntcn xc nhtrc khi phn tch.
t tn nguyn tiumu, t thi gian v khng cn hacht tinh khit cao khi lm giu.
Trnh csnhimbn khi x l mu.
Ktqu phn tch nnh v sai snh.
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
19/29
Faculty of Applied Chemistry
GII THIU PHNG PHP F-AAS
Nhc im
Hthng my ttin,phctp v kh tinh vi.
S nhim bn rt c ngha i vi kt qu phntch hm lngvt.
Ch cho ta bit thnh phn nguyn t ca cht trong mu phn tch m khng chra trng thi lin kt
ca nguyn t trong mu.
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
20/29
Faculty of Applied Chemistry
PHNG PHP X L MU KH T
Nguyn tc chungMu
Mt lng nh axitv cht ph gia
X l s bHn hp Than en
Tro trng
Nung 1000C
Nung
5000C
Troho
Than ho
Axit m c
Nung 1000CMui m
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
21/29
Faculty of Applied Chemistry
Lng axit thng dng x l l rt t, v vys ttn km axit hn.
Sau khi x l sbem nung mus phn husnhanh hn
Hnchbtcsmtcamts kim loi trongkhi nung.
t tnnhiuthi gian.Dung dch thu c l sch v trong hn so vi v
c ho t.
PHNG PHP X L MU KH T
u im
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
22/29
Faculty of Applied Chemistry
Phng php x l t kh
Cc loi axit thng dng cho qu trnh x lt kh l: HCl, HNO3, H2SO4, HCLO4......
Cc loi cht ph gia thng dng l: KNO3,Ca(NO3)2, Mg(NO3)2, Na2B4O7......
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
23/29
Faculty of Applied Chemistry
Phng php x l t khC ch phn hu:Giai on u x l t l k thut dng cc axit
mnh,c phn humu.
H2SO4 : ng vai tr phn hy cc hpchthucdo axit ny c khnngt chy chthuc.
HCl, HNO3, HClO4 : cc axit ny c vai tr xc tincho phnng nhanh hn v n c khnngctmch
phn t.V d: x l mu thc phm rau qu: Mu + HNO3 + H2SO4 CO2 + H2O + mui kim loi ha tan
F l f A li d Ch i
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
24/29
Faculty of Applied Chemistry
Phng php x l t khCch phn hu:Giai on sau l x l kh: sdngnhit cao
ph mu
Giai on than ha: mcchca qu trnh than ha llm bc hi nc v cc axit s dng trong giaion trc cng vi mt s cht bay hi nhit khong 1000C
Giai on tro ha: mc ch ca qu trnh tro ha lphn hy ton bchthuc c trong mu,gii phngkim loididngt do hay mui kim loi tan.
F lt f A li d Ch i t
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
25/29
Faculty of Applied Chemistry
THC NGHIM
Qui trnh thc nghimRa sch
Mu
Tro trngNung 5000C
Nung 1000C
Sy kh5g mu, 10 ml HNO3 65%, 5ml
Mg(NO3)2 2%
Chn nung
Nung
1000C
Than enNung3 gi
4500C
Tro
20 ml HNO3 65%
Mui m
o bng thit b AAS
nhmcbngHNO32%
F lt f A li d Ch i t
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
26/29
Faculty of Applied Chemistry
KT QU
ng chun
Kt qu nng ch t ng chun
Kt qu o hm lng ch trong rau
F lt f A li d Ch i t
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
27/29
Faculty of Applied Chemistry
KT QU
Giihn cho php 46/2007QBYT (mg/kg )
(1): mu rau ng(2): mu rau nhc
(3): mu rau ng
F lt f A li d Ch i t
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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
28/29
Faculty of Applied Chemistry
http://vi.wikipedia.org/wiki/Ch%C3%AC http://vi.wikipedia.org/wiki/Ch%C3%AC#.E1.BB.A8ng_d.E1.BB.A5ng http://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.html http://thanhdiadc.forumotion.com/t19-topichttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngi#13810
http://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngi#13810 T Vng Nghi (2001), Ha hc phn tch-C s l thuyt cc phng php ha hcphn tch, NXB i hc Quc Gia H Ni Trn T Hiu, T Vng Nghi, Nguyn Vn Ri, Nguyn Xun Trung (2003)-Ccphng php phn tch cng c -phn hai-i hc Khoa hc T nhin -ihc
Quc Gia H Ni Phm Lun(1998), C s l thuyt phng php phn tch ph pht x v hp thnguyn t phn II-i hc Khoa hc T nhin-i hc Quc Gia H Ni Phm Lun (2003), Phng php phn tch ph hp th nguyn t- NXB i hcQuc gia H Nihttp://vi.wikipedia.org/wiki/Ph%C3%A2n_t%C3%ADch_As_b%E1%BA%B1ng_ph%C6%B0%C6%A1ng_ph%C3%A1p_AAS
TI LIU THAM KHO
Faculty of Applied Chemistry
http://vi.wikipedia.org/wiki/Ch%C3%AChttp://vi.wikipedia.org/wiki/Ch%C3%AChttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://thanhdiadc.forumotion.com/t19-topichttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://vi.wikipedia.org/wiki/Ph%C3%A2n_t%C3%ADch_As_b%E1%BA%B1ng_ph%C6%B0%C6%A1ng_ph%C3%A1p_AAShttp://vi.wikipedia.org/wiki/Ph%C3%A2n_t%C3%ADch_As_b%E1%BA%B1ng_ph%C6%B0%C6%A1ng_ph%C3%A1p_AAShttp://vi.wikipedia.org/wiki/Ph%C3%A2n_t%C3%ADch_As_b%E1%BA%B1ng_ph%C6%B0%C6%A1ng_ph%C3%A1p_AAShttp://vi.wikipedia.org/wiki/Ph%C3%A2n_t%C3%ADch_As_b%E1%BA%B1ng_ph%C6%B0%C6%A1ng_ph%C3%A1p_AAShttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://rausach.com.vn/forum_posts.asp?TID=3152&PID=13810&SID=f928b8fe3be7b9383cd2ca9cdf9cc3z9&title=rau-xanh-ca-mi-ngihttp://thanhdiadc.forumotion.com/t19-topichttp://thanhdiadc.forumotion.com/t19-topichttp://thanhdiadc.forumotion.com/t19-topichttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://www.amthuc365.vn/t12930c167/cam-nang-huu-ich/2012/04/thuc-pham-nhiem-chi-va-cach-phong-tranh.htmlhttp://vi.wikipedia.org/wiki/Ch%C3%AChttp://vi.wikipedia.org/wiki/Ch%C3%AC 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7/31/2019 Xac Dinh Ham Luong Chi Trong Rau Xanh
29/29
Faculty of Applied Chemistry
Chn thnh cm n !