Chapter 26 Flashcards

1
Q

Define elution

A

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2
Q

Define mobile phase

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3
Q

Define stationary phase

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4
Q

Define distribution constant

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5
Q

Define retention time

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6
Q

Define retention factor

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7
Q

Define selectivity factor

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8
Q

Define plate height

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9
Q

Define longitudinal diffusion

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10
Q

Define eddy diffusion

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11
Q

Define column resolution

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12
Q

Define eluent

A

a

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13
Q

Describe the general elution problem.

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14
Q

What variables are likely to affect the selectivity factor α for a pair of analytes?

A

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15
Q

Name two general methods for improving the resolution of two substances on a chromatographic column.

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16
Q

What is gradient elution?

A

a

17
Q
A
18
Q

26-16. From the data in Problem 26-14. calculate for species Band C

(a) the resolution.
(b) the selectivity factor α.
(c) the length of column necessary to separate the two species with a resolution of 1.5.
(d) the time required to separate the two species on the column in part (c).

A