課程名稱︰分析化學丁
課程性質︰必修
課程教師︰何國榮
開課系所︰醫技系、藥學系
考試時間︰2006/6/26 10:20-12:10
是否需發放獎勵金：是
試題 :
(111 points)
1. Explain that, for an acidic solution,direct measurement is less accurate
than acid-base titration. 5%
2. Calomel electrode and Pt electrode are used in a titration between Ce+4
and Fe+2. 8%
(a) Write down the titration reaction and one of the cell reaction.
(b) Explain the following two sentences. "The titration reaction gose to
competition. The cell reactions proceed to a negligible extent."
3. Explain that the titration curve of oxidation-reduction is independent
of dilution. 5%
4. Explain that in iodometry, starch should not be added until immediately
before the equivalence point. 5%
5. Why is iodine almost always used in a solution containing excess I-? 5%
6. Explain that three electrodes are used in volummetry but not in
potentiometry. 5%
7. Why is mercury a better working electrode than Pt and Au in reduction
reaction? 5%
8. What are the information provided in a polarogram? 5%
9. Why is desirable to wait 1 s after a potential pulse before recording the
current in voltammetry? 5%
10.Why is stripping the most sensitive polarographic technique? 5%
11.Why is photomultiplier such a sensitive photodetector? 5%
12.(a) Describe the operation of ELISA. 8%
(b) Explain that ELISA has very good sensitivity.
13.Describe the adventage and disadventage of using potodiode array instead of
photomultiplier as the chromatography detector. 6%
14.Describe the adventages and disadventages between furnace AA and ICP-AES. 6%
15.Why is deuterium lamp not used in AA? 5%
16.What difference between packed and open tubular column allows much longer
open tubular columns to be used? 5%
17.(a) Describe reconstructed total ion chromatogram. 8%
(b) What is the adventage of selected ion chromatogram?
18.Why is selected reaction monitoring a very sensitive rwchnique? 5%
19.In HPLC, why is the smaller the packing particle the better the
resolution? 5%
20.Explain that a chromatographic separation normally has an optimum flow rate
that gives the best separation. 5%
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※ 編輯: yuncheng42 來自: 140.112.7.59 (06/26 12:45)