Separation of isomers in p-chlorophenol - Master's thesis - Dissertation

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Separation of isomers in p-chlorophenol

First, the experimental conditions

1

,

instrument:

GC508

Detector:

FID

2

,

workstation:

N2000

3

,

Column:

CS

-

05 30m

×

0.32mm

×

0.4

μ

m

Changzhou

4

,

temperature

:

COL 120

°C

°C

°C

5

,

Carrier gas:

N2

Pre-column pressure:

0.03Mpa

Split ratio:

100

:

1

6

,

hydrogen:

0.08 Mpa

7

,

air:

0.05 Mpa

8

,

Injection volume:

0.1

μ

L

Second, the chromatogram

5.62

─

phenol

9.62

─

O-chlorophenol

10.52

─

P-chlorophenol

10.88

─

M-chlorophenol

Third, the results and discussion

1

,

The experimental conditions can better separate the isomers in p-chlorophenol, and the outflow order is adjacent, opposite, and intervening.

2

,

Before the analysis, you need to adjust the split ratio to

100

:

1

, the injection volume is as small as possible, otherwise the alignment and meta position will not be complete

separate.

3

,

The method is equally applicable to the quality detection of o-chlorophenol and m-chlorophenol.

4

, quantitative method: peak area normalization method.

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