作者airolg (恩)
看板Chemistry
標題[學科] 分析化學的一些問題(有獎金唷)
時間Sat Jan 16 18:05:39 2010
想請問各位大大一些問題
全部都是單選題 我覺得題目出得很奇怪 囧 而且我沒有答案= =
1. what kind of LC column is used for ion-pair elution?
[1]ODS [2]Si [3] IXC [4]HIC [5]HILIC
2. which following is not an interphase of LC&MS?
[1]electrospray [2]thermopray [3]MALDI [4] electron impasct
http://www.biolab.cn/plus/view-385344-1.html
我覺得應該是MALDI 但是似乎又有LC-MALDI這種東西(見上面網頁)
3.which in the following is not a factor involved in the control of
GC capillary resolution?
[1] colum ID [2] colum length [3] split injection [4]temperature programming
[5] staionary thickness
我覺得全部都有關耶@@"
4.which in the following has nothing to do with the EOF in cappilary
electrophoresis?
[1] temperature [2]solute conc. [3] buffer pH [4] electric field
[5] surfactant
solute conc.應該不影響吧? 不過我在想很濃的酸會不會稍微有影響呢?
5.which in the followinis not a mode of capillary electrophoresis?
[1] Micellar Electrkinetic Chromato graphy [2]IsoTacho Electrophoresis
[3]isoelectric focusing [4] immuno electrophoresis
[5]free solution(zone) electrophoresis
http://d.wanfangdata.com.cn/NSTLQK_NSTL_QK2878198.aspx
我覺得應該是4 不過好像也有類似的東西(見上網頁)
6.which in the following has no effect on the colum efficiency?
[1]particle size of the packing matrix [2] film thickness of the liquid
stationary [3] solvent viscosity [4] homogeneity of matrix particle
[5] solvent flow rate
我覺得都有關耶@@"
7.which statement in the following is correct?
[1] Si colum can not be used in a water containing mobile phase
[2] SFC si better than GC and HPLC
[3] GC is applicable to volatile componds only
[4] CE can analyze all the cationic, anionic and neutral solutes in the
same run
[5] reversed phase HPLC analyzes all the cationic, anionic and neutral
solutes
in the same run
8. wich statement in the following is not correct?
[1]separation is due to the differential volatility of solutes by GC
[2]separation is due to the differential solubility of solutes in stationary
phase by GLC
[3]separation is due to the differential solubility of solutes in mobile
phase
by LLC
[4]separation is due to the differential adsorption of solutes to staionary
phase by LSC
[5]separation is due to the differential migration of solutes on mobile phase
by TLC
我覺得3是不是應該改成mobile phase?
煩請各位高手解答謝謝 mOm
如有回答者 一題125P 八題就是1000P囉^^"
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◆ From: 140.112.217.99
※ 編輯: airolg 來自: 140.112.217.99 (01/16 20:22)
1F:推 jiti:第二題我覺得是[4]electron impact 這個通常用在GC-MS 01/16 22:12
2F:→ jiti:第三題好像是[3] split injection 這個跟樣品量和濃度有關 01/16 22:13
3F:→ jiti:第四題應該就是[2]solute conc. 溶質量很少 濃度應該不影響 01/16 22:15
4F:→ jiti:第五題應該是[4] immuno electrophoresis 模式中沒有提到這個 01/16 22:16
5F:推 jiti:第六題我覺得是[3] solvent viscosity 不過我不大確定 01/16 22:18
6F:→ airolg:謝謝J大的解答T^T 已發125*5=625P 01/16 23:20
7F:→ airolg:還有 1,7,8,題需要高手解惑 謝謝mOm 01/16 23:25