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pharmacist___kb0512小考
範圍:生物鹼 核磁共振 質譜儀
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學校
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大仁
嘉藥
中國醫
北醫
高醫
陽明
台大
國防
Other:
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1.下列何者是氫核磁共振光譜芳香環氫訊號範圍(ppm)?
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5 points
(A)6.0~8.5
(B)4.6~5.5
(C)3.7~4.1
(D)2.5~4.0
2.在氫核磁共振光譜中,下列何者的甲基化學位移最大?
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5 points
(A)CH3 F
(B)CH3 Cl
(C)CH3 Br
(D)CH3 I
3.下列何種質譜儀的解析度最佳?
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5 points
(A)四極柱式質譜儀(quadrupole MS)
(B)飛行時間質譜儀(time of flight MS)
(C)扇形磁場質譜儀(magnetic sector MS)
(D)傅立葉轉換質譜儀(FT ion cyclotron resonance MS)
4.某藥物進行電子撞擊離子法質譜(EI-MS)分析時,發現有失去28原子質量(amu)的斷片(fragment),此 斷裂失去的基團最可能為下列何者?
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5 points
(A)CO
(B)CH2 CH2
(C)N2
(D)NCH2
5.當進行chlorpromazine C17H19ClN2 S(average MW = 318.9)的串聯質譜分析時,欲得到主要質譜峰位於 m/z = 319,需使用下列何種離子化方法?
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5 points
(A)positive mode electrospray ionization
(B)electron impact ionization
(C)negative mode electrospray ionization
(D)negative ion chemical ionization
6.下列何種液相層析-質譜(LC-MS)介面游離法,最適用於大分子如白蛋白(albumin)之分析?
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5 points
(A)電子撞擊(EI)
(B)熱噴灑法(thermospray)
(C)電灑法(ESI)
(D)高速原子撞擊(FAB)
7.有關質譜分析的敘述,下列何者正確?
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5 points
(A)化學游離法(CI)適用於蛋白質的分子量測定
(B)測定蛋白質的分子量時,可用電子撞擊離子法(EI)
(C)常壓下的離子化技術尚未被開發
(D)質譜圖通常以m/z為橫軸,各離子的相對強度為縱軸
8.苯環鄰位氫的偶合常數約為多少Hz?
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5 points
(A)8
(B)12
(C)16
(D)4
9.於質譜分析中,下列何者不是撞擊誘導碎裂法(collision induced dissociation, CID)的主要應用?
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5 points
(A)解析光學異構物的立體結構
(B)增加定量血中藥物濃度的選擇性與靈敏度
(C)提供不純物的碎裂片段資訊
(D)分析肽藥物的胺基酸組成與序列
10.質譜分析中,下列何種離子化方式最有助於蛋白質結構解析?
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5 points
(A)electron impact ionization
(B)negative ion chemical ionization
(C)positive ion chemical ionization
(D)matrix-assisted laser desorption ionization
11. 下列各項配對中,何者錯誤?
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5 points
(A)colchicum-autumn crocus-Crocus sativus
(B)khat-Abyssinian tea-Catha edulis
(C)ephedra-ma huang-Ephedra sinica
(D)peyote-mescal buttons-Lophophora williamsii
12.下列何者為阿片(opium)的特有成分且被用於阿片的檢測?
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5 points
(A)aspartic acid
(B)ferric chloride
(C)meconic acid
(D)quinolinic acid
13. 當進行chlorpromazine C17H19ClN2 S(average MW = 318.9)的串聯質譜分析時,欲得到主要質譜峰位於 m/z = 319,需使用下列何種離子化方法?
*
5 points
(A)positive mode electrospray ionization
(B)electron impact ionization
(C)negative mode electrospray ionization
(D)negative ion chemical ionization
14.下列生物鹼之生合成,何者沒有單萜類參與?
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5 points
(A)reserpine
(B)colchicine
(C)quinine
(D)vincristine
15.下列生物鹼,何者不具 purine 結構?
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5 points
(A)theobromine
(B)mescaline
(C)xanthine
(D)caffeine
16.下列何種皂苷之苷元不屬於固醇類?
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5 points
(A)sarsaponin
(B)digitonin
(C)saikosaponin A
(D)dioscin
17.下列何者為phthalideisoquinoline類生物鹼?
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5 points
(A)hydrastine
(B)physostigmine
(C)brucine
(D)physovenine
18.N-Methylpyrrolinium ion是nicotine生合成之重要中間產物,其前驅物(precursor)為何?
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5 points
(A)lysine
(B)glycine
(C)ornithine
(D)phenylalanine
19.下列生藥所含成分與其治療用途之配對,何者錯誤?
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5 points
(A)vinca:vinblastine,anti-neoplasm
(B)cinchona:quinine,anti-malaria
(C)pilocarpus:physostigmine,anti-glaucoma
(D)ergot:ergotamine,anti-migraine
20.下列何種成分因具有骨骼肌鬆弛作用,可用兔子垂頭試驗(head-drop)作為效價測定?
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5 points
(A)reserpine
(B)hydrastine
(C)sanguinarine
(D)tubocurarine chloride
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