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???? Analytical Chemistry

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Title: ???? Analytical Chemistry


1
????Analytical Chemistry
???
2
???????
  • 1.??26???,(??42??,6?)?
  • 2.???????????????,??????

3
?????
  • ??
  • 1. ????,R.Kellner??,??? ?????,???????,2001,8
  • 2. ????(???),?????,???????,2000,3
  • 3. 21???????,?????,?????,1999

4
4. ??????,????,?????, 1991
  • 5. Chemical equilibrium and analysis,Ramette,
    Richard W.,Addison-Wesley Pub. Co., 1981
  • 6. Quantitative chemical analysis (5th ed),Daniel
    C. Harris,New York W.H. Freeman, c1999.
  • ??????????E315? 

5
  • ???
  • ??????

6
1.1 ??????????
  • ????????????????????,?????????????????????????,???
    ???????
  • ???????????????????????????????????????????

7
  • ??1991?IUPAC??????????E.NIKI????,21???????????????
    ?????????????????????????????,????????????????????
    ???????

8
???????
  • 1) ???????????????,???,?????????????(70ng),?7????
    ???.
  • 2) ????????????110-7 210-6??310-6
    110-5?????????110-5???????,??????.
    ???????7?g???
  • ???????????????????
  • 3) ?????????,1000??.?200???,?????????????
  • 4)?????????(???????),As?Pb????,??????????

9
???????????????
  • 1)?????
  • ??????????????????????
  • 3)????????
  • 4)?????????????
  • 5)??????????
  • 6)??????????????????
  • 7)?????????
  • 8)???????

10
???Douglas A. Skoog?? Analytical
Chemistry 2000,7th ed.
????????????????????
11
  • ????????????????????(??????????????---) ?
  • ???????????????????????????????????????????????
    ?

12
1.2 ??????
  • ?? ?? ???? ?? ??
  • ?? ?? ?? ????
  • ???? ?? ?? (gt1,???)
  • ???? ?? ????
  • ???? ?? (?????)

13
1.3 ??????
????? ???? ???? ?????????????
  • ?????
  • ??????-???????????????????????????????
  • ??????????????????
  • ???????????GC?HPLC
  • ???MS???????????????

14
???????
  • ?? ??????(mg) ??????(mL)
  • ?? gt100 gt10
  • ??? 10100 110
  • ?? lt10 lt1

???????? ????(gt1)?????(0.01-1)?????(lt0.01) 
15
1.4 ???????
  • 1.4.1 ????
  • 2HClNa2CO32NaClH2CO3
  • ??? ?????(sp)
  • ??? Stoichiometric
    point
  • ????(ep)
  • End point
  • ????? ????(Et )

16
1.4.2 ?????????? ?????
1. ???????????(99.9??) 2. ?(????????)
3. ??????????(???)?
????
  • ?????K2Cr2O7??Na2S2O3(KI)

??? AlEDTA(??)?
CaCO3HCl(??)
17
1.4.3 ?????????
  • ?????????????
  • 1. ????K2Cr2O7?KBrO3
  • 2. ?????NaOH?HCl?EDTA?KMnO4?I3-
  • ????
  • 1. ????????(H2C2O42H2O?NaCl )
  • 2. ??gt99.9
  • 3. ??(Na2CO3?CaCO3?Na2C2O4?)

18
?????????
  • ?? 1? 2? 3? ????

??? ??? ??? ??? ???? GR AR
CP BR ???? ? ? ? ???
????p7-15 ??????????????
19
1.4.4 ??????????
  • ????????
  • ???(???)?
  • ???(???)?
  • ???(???)
  • ????
  • 1.????
  • 2.???? ???????

20
1.4.5 ??????
  • ????????????
  • ???? n (mol? mmol)
  • ????M(gmol-1)
  • ??????c(molL-1)
  • ??m(g?mg), ??V(L?mL)
  • ????w(),????? (gmL-1 ?mgmL-1)
  • ?????Mr??????Ar

???? ????
21
A. ???????
  • 1?????(NaOH?HCl)
  • n1n2 c1V1 c2V2
  • 2 ?????????(K2Cr2O7)
  • ????????????

22
?1.1 ?0.01000 molL-1 K2Cr2O7??
??250.0mL,?m?
  • ? m(K2Cr2O7)nMcVM
  • 0.010000.2500294.20.7354(g)
  • ??????????0.01 molL-1??, ???
  • ????0.74g(10) K2Cr2O7????, ???????, ?????????

23
B. ?????????1???????

ZA?ZB???A???B???????????????????
24
?????????
  • H2SO4 2NaOH Na2SO4 2H2O

H2SO4 ????? NaOH ????? NaOH ???????
MnO4- 5Fe2 8H Mn2 5Fe3 4H2O
25
?1.4 ?K2Cr2O7?????,????I2?????0.020molL-1Na2S2O3
?????,?????K2Cr2O7??????????????0.1?
  • ? Cr2O72-6I-14H2Cr33I27H2O
  • I22S2O32-2I-S4O62-

26
???----??????
  • ????0.25g??K2Cr2O7,?????????????250mL??????,?25m
    L?????3??????,???Na2S2O3??.

??0.10molL-1NaOH ??H2C2O42H2O,?0.15g,
???? ??KHC8H4O4,?0.5g, ?????(?)
27
????? ?????
28
(?1.6)
29
A?????????
  • ?????????

???????
30
?????
  • 1.???? ?????????????????????????
  • 2.??????
  • M(Mr)? m?n?c?V?w?? ?????
  • ?????????? ???????
  • ???(nA)????(nB)???
  • ?????????????
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