
層析分離

Quiz
•
Biology
•
University
•
Hard
林史賓塞 林史賓塞
Used 14+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一種氣體不適用當作氣相層析(GC)的載流氣體(Carrier gas)?
N2
He
H2
O2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
請描述層析分析時的選擇因子(selectivity factor ,α)
兩個色譜峰的寬度成比例的差異
兩種物種之間的相對分離溶解度
色譜柱可同時分離的最大不同物種數
以上皆非
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
容量因子(capacity factor),當容量因子愈大時,表示該物質的滯留時間就
愈長
愈短
長、短均有可能
根本無關
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一個物質的層析波峰寬度(peak band breadth)會隨其滯留時間愈長而
愈小
愈大
沒有影響
以上皆非
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一個儀器或分析方法對於檢體的鑑識最具個化之區辨效果? 常用於濫用藥物檢體之確認試驗
光譜分析(Spectrophotometry)
核磁共振光譜分析(NMR)
氣相層析質譜分析法(GC-MS)
免疫學反應法(Immunological test)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
對氣相層析的攜帶氣體而言,基本上必須是化學性質愚鈍者,要用那一種氣體得視該所使用的偵測器而定,基於安全考量,最常用的氣體為
Nitrogen (N2)
Hydrogen (H2)
Helium (He)
Argon (Ar)
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
基於製作方便,易於添加靜相材質,毛細管柱的材質通常是
玻璃
不鏽鋼
銅
鋁合金
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