B̫ng 2.4.1.a. Danh mͭFKRiFK̭t c̯n thi͇WFKRQJKLrQFͱu
TT 7rQKRiFKҩt M өFÿtFK
1. HNO3 Pha chӃ dung dӏFKÿLӅu chӍQKS+D[LWKRiPүu
2. NaOH ĈLӅu chӍnh pH
3. HCl ĈLӅu chӍnh pH
4. Ni(NO3)2 ;iFÿӏnh sӵ thӫ\SKkQFӫa Ni2+
5. Cd(NO3)2 ;iFÿӏnh sӵ thӫ\SKkQFӫa Cd2+
6. Co(NO3)2 ;iFÿӏnh sӵ thӫ\SKkQFӫa Co2+
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8. Pb(NO3)2 ;iFÿӏnh sӵ thӫ\SKkQFӫa Pb2+
9. Cr(NO3)3 ;iFÿӏnh sӵ thӫ\SKkQFӫa Cr3+
B̫ng 2.4.1.b. Danh mͭFKRiFK̭t c̯n thi͇WFKRQJKLrQFͱu
TT 7rQKRiFKҩt M өFÿtFK
1. Mn(NO3)2 ;iFÿӏnh sӵ thӫ\SKkQFӫa Mn2+
2.
Fe(NO3)3
;iFÿӏnh sӵ thӫ\SKkQFӫa Fe3+, ҧQKKѭӣng cӫa Fe
ÿӃn sӵ thӫ\SKkQFiFLRQNLPORҥi nһng.
3.
Muӕi Morh ;iFÿӏnh sӵ thӫ\SKkQFӫa Fe
2+, ҧQKKѭӣng cӫa Fe
ÿӃn sӵ thӫ\SKkQFiFLRQNLPORҥi nһng.
4.
Cu(NO3)2
;iFÿӏnh sӵ thӫ\SKkQFӫa Cu2+, ҧQKKѭӣng cӫa Cu ÿӃn sӵ thӫ\SKkQFiFLRQNLPloҥi nһng.
5.
.Kt12
GiҧPOѭӧng O2 KzDWDQWURQJQѭӟc, chӕQJTXiWUuQK R[LKyDFiFFKҩWQKѭ)H2+, Mn2+...
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6.
NH2OH.HCl
Bҧo vӋ mӝt sӕ chҩt bӏ R[\ KyD WURQJ P{L WUѭӡng kiӅPQKѭ)H2+, Mn2+ NK{QJEӏ chuyӇQWKjQK)H22+
hay Mn(OH)3
7.
Na2SO3
Bҧo vӋ mӝt sӕ chҩt bӏ R[\ KyD WURQJ P{L WUѭӡng kiӅPQKѭ)H2+, Mn2+ NK{QJEӏ chuyӇQWKjQK)H22+
hay Mn(OH)3
B̫ng 2.4.2. Danh mͭc thi͇t b͓ c̯n thi͇WFKRQJKLrQFͱu.
TT 7rQGөng cө, thiӃt bӏ M өFÿtFK
1 &kQSKkQWtFKFkQNӻ thuұt &kQKyDFKҩWÿӇ SKDFiFGXQJGӏch
2 %~WÿRS+ ;iFÿӏnh pH chuҭn cӫDFiFGXQJGӏch
3 0i\TXDQJSKә hҩp thө QJX\rQWӱ
AAS-6800 ;iFÿӏQKKjPOѭӧng kim loҥi
4 0i\,&3-MS ;iFÿӏQKKjPOѭӧng kim loҥi
5 0i\VөFNKt ĈӇ ÿXәLNKtR[LWURQJFiFWKtQJKLӋm
6 0i\Vҩy Sҩ\NK{FiFKyDFKҩt
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&iF Gөng cө thuӹ tinh phә biӃn
WURQJ 371 QKѭ EuQK WDP JLiF EuQKÿӏnh mӭc, cӕc thӫ\WLQKÿNJD
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thӫy tinh, pipet, phӉu lӑc, giҩy lӑFEuQKWLDQѭӟc cҩt... Chu̱n b͓ KyDFK̭t: 3KDFiFGXQJGӏch chuҭn Pb2+, Co3+, Cr3+, Cd2+, Zn2+, Mn2+, Ni2+, Cu2+, Fe3+, Fe2+ ÿӅXFyQӗQJÿӝ1000ppm: - &kQFKtQK[iFFiFKyDFKҩWÿmVҩ\NK{WURQJKEҵQJFkQSKkQWtFK-4g) vӟi khӕLOѭӧQJQKѭVDX
+yDFKҩt KhӕLOѭӧng +yDFKҩt KhӕLOѭӧng
Ni(NO3)2 1,5564 g Mn(NO3)2 1,6273 g Cd(NO3)2 1,0536 g Cr(NO3)3 2,2885 g Co(NO3)2 2,0763 g Fe(NO3)3 2,1607 g Zn(NO3)2 1,4538 g Cu(NO3)2 1,4688 g Pb(NO3)2 0,7995 g Muӕi Morh 3,500 g
- +zDWDQWӯng muӕi bҵQJQѭӟc cҩt hai lҫn. chuyӇQWRjQEӝ dung dӏFK YjR EuQKÿӏnh mӭFPOWUiQJUӱa cӕc ba lҫn bҵQJQѭӟc cҩt rӗLFKRWRjQEӝ YjREuQK ÿӏnh mӭF7KrPWLӃp 1ml dung dӏch HNO3 ÿһFYjRYjÿӏnh mӭc bҵQJQѭӟc cҩt hai
lҫn, trӝQÿӅXWDÿѭӧFFic dung dӏch chuҭn 1000ppm, pH = 2.