Term
| what types of organic compounds can be analyzed by gas-liquid chromatography? |
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Definition
| Volatile organic compounds |
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Term
| What limitations are associated with gas-liquid chromatography? |
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Definition
1) Very small sample sizes
2) Sample must be volatile |
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Term
| What is the stationary phase in gas-liquid chromatography? |
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Definition
| A high boiling, non volatile liquid (typically a polymer) |
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Term
| What is the mobile phase in gas-liquid chromatography? |
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Definition
| An inert gas such as helium or nitrogen |
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Term
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Definition
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Term
| What factors affect retention time? |
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Definition
A)Structure of the compound
B)Type of stationary phase
C)Length and diameter of column
D) Gas flow rate
E) Temperature of the column |
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Term
| what must be available in order for GC analysis to permit compound identifications? |
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Definition
| Authentic samples of the various components of teh mixture being analyzed |
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Term
| What items are typically compared in the process of identifying the components of a mixture? |
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Definition
A) Retention times
B) Peak enhancement
C) Spectroscopic data |
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