Mega / MEGA-DEX

MEGA-DEX

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MEGA-DEX columns are chiral GC columns for enantiomeric separations.

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Technical Data

Phase

Chiral selector

Inner diameter

Film thickness

Tmax

DAC Beta

diacetyl TBS β cyclodextrin

0.25 mm

0.15, 0.25 μm

230 °C

DAC Gamma

diacetyl TBS γ cyclodextrin

0.25 mm

0.15, 0.25 μm

230 °C

DET Beta

diethyl TBS β cyclodextrin

0.25 mm

0.15, 0.25 μm

230 °C

DET Gamma

diethyl TBS γ cyclodextrin

0.25 mm

0.15, 0.25 μm

230 °C

DMP beta

dimethyl-pentyl TBS β cyclodextrin

0.25 mm

0.15, 0.25 μm

230 °C

DMT beta

dimethyl TBS β cyclodextrin

0.25 mm

0.15, 0.25 μm

230 °C

B-SE

cyclodextrin derivative

N/A

N/A

230 °C

B-03

cyclodextrin derivative

N/A

N/A

230 °C

G-01

cyclodextrin derivative

N/A

N/A

230 °C

G-03

cyclodextrin derivative

N/A

N/A

250 °C

Applications

Resolutions of enantiomer separations measured by GC-MS

Column

I.D. / mm

Film Thickness / µm

Lenght / m

MEGA-DEX DMT β

0.25

0.15

25

MEGA-DEX DET β

0.25

0.15

25

MEGA-DEX DAC β

0.25

0.25

25

MEGA-DEX DMP β

0.25

0.25

25

Compound

MEGA-DEX DMT β

MEGA-DEX DET β

MEGA-DEX DAC β

MEGA-DEX DMP β

Configuration

Camphene

2.2

6.8

-

4.5

 

β-Citronellene

-

1.2

-

1.8

 

β-Phellandrene

3.8

6.1

0.9

3.0

 

Limonene

5.0

7.4

-

3.7

 

α-Pinene

2.9

-

1.2

3.5

 

β-Pinene

3.4

3.6

1.1

1.4

 

Sabinene

6.5

6.2

-

7.2

 

Resolutions of enantiomer separations of heterocycles measured by GC-MS

Compound

MEGA-DEX DMT β

MEGA-DEX DET β

MEGA-DEX DAC β

MEGA-DEX DMP β

Configuration

Rose oxide

4.2

2.0

1.6

2.1

(2R4S) cis / (2S4R) cis

Rose oxide

-

1.9

-

-

(2R4R) trans / (2S4S) trans

Resolutions of enantiomer separations of esters measured by GC-MS

Compound

MEGA-DEX DMT β

MEGA-DEX DET β

MEGA-DEX DAC β

MEGA-DEX DMP β

Configuration

Butyl butyryl lactate

1.6

1.7

2.2

1.4

 

Dimethyl methylsuccinate

2.2

1.1

4.0

2.0

 

Ethyl 2-phenylbutyrate

1.0

2.7

1.0

1.1

 

Ethyl 3-hydroxybutyrate

3.2

-

6.1

1.8

 

Ethyl 3-hydroxyhexanoate

3.0

1.5

-

3.7

 

Ethyl 2-methylbutyrate

2.9

5.1

2.7

2.2

 

Ethyl 3-methyl-3-phenylglycidate

-

2.5

1.0

-

X / Y

Ethyl 3-methyl-3-phenylglycidate

2.0

4.7

-

4.7

Z / W

Phenylethyl methyl ethyl carbinol acetate

-

-

-

1.1

 

Isobornyl acetate

-

1.4

-

1.7

 

Isobornyl isobutyrate

1.0

1.4

-

1.9

 

Lavandulyl acetate

1.6

2.3

-

1.4

 

Linalyl acetate

0.7

3.7

1.1

-

 

Linalyl propionate

-

1.2

-

0.4

 

Menthyl acetate

14.0

17.0

5.2

19.8

 

cis 2-Methyl-3.-hexenyl butyrate

1.8

2.3

1.0

1.0

 

Methyl 3-hydroxyhexanoate

5.7

6.8

3.0

7.8

 

Nopyl acetate

-

-

-

1.7

 

Propyleneglycol butyrate

2.3

1.4

1.2

5.3

 

Styrallyl acetate

15.6

56.3

3.0

38.3

 

α-Terpinyl acetate

-

-

-

1.1

 

Resolutions of the enantiomer separations of lactones measured by GC-MS

Compound

MEGA-DEX DMT β

MEGA-DEX DET β

MEGA-DEX DAC β

MEGA-DEX DMP β

Configuartion

Aerangis lactone

2.2

2.8

1.0

1.7

 

δ-Hexalactone

-

1.5

6.6

-

 

δ-Heptalactone

3.2

1.4

0.9

0.6

 

δ-Octalactone

1.8

3.4

7.5

0.9

 

δ-Nonalactone

1.5

1.0

4.4

-

 

δ-Decalactone

1.0

1.0

4.1

-

 

δ-Undecalactone

1.4

1.2

3.8

-

 

δ-Dodecalactone

1.1

1.1

3.5

-

 

γ-Pentalactone

7.6

20.5

21.4

5.5

 

γ-Hexalactone

6.0

13.6

15.7

3.4

 

γ-Heptalactone

8.9

13.9

4.2

4.7

 

γ-Octalactone

6.4

11.6

4.6

3.7

 

γ-Nonalactone

5.7

9.8

3.9

3.0

 

γ-Decalactone

4.0

7.2

3.7

2.2

 

3-Methyl-γ-decalactone

6.4

8.0

4.5

5.1

 

γ-Undecalactone

3.4

6.1

3.6

1.7

 

γ-Dodecalactone

2.9

4.8

3.1

1.4

 

γ-Tetradecalactone

2.0

3.2

2.4

1.0

 

γ-Pentadecalactone

1.6

2.4

2.1

0.7

 

ε-Decalactone

5.0

8.0

2.6

1.8

 

ε-Dodecalactone

4.3

5.4

4.0

1.2

 

Massoja decalactone

1.2

-

5.7

0.7

 

Massoja dodecalactone

1.2

-

5.2

-

 

Whiskey lactone

11.2

11.2

5.1

5.2

X / Y

Whiskey lactone

2.8

1.4

6.3

-

Z / W

Resolutions of the enantiomer separations of ketones measured by GC-MS

Compound

MEGA-DEX DMT β

MEGA-DEX DET β

MEGA-DEX DAC β

MEGA-DEX DMP β

Configuration

Camphorquinone

2.2

3.8

6.5

-

 

Camphor

2.6

3.7

7.8

-

 

3,6-dimethylocta-2-en-6-one

1.7

5.0

2.4

3.2

 

1,8-Epoxy-p-menthan-3.one

12.5

13.8

4.8

11.6

 

α-Ionone

5.1

4.9

5.4

7.6

 

Isomenthone

10.4

-

2.4

-

 

Menthone

1.5

2.2

2.8

-

 

3-Methylcyclohexanone

1.7

5.3

1.0

1.3

 

3-Oxocineole

17.0

 

20.7

11.0

 

Piperitone

6.0

8.8

2.8

5.0

 

Pulegone

4.6

3.8

-

2.7

 

Verbenone

2.9

3.5

1.8

1.1

 

Resolutions of the enantiomer separations of aldehydes measured by GC-MS

Compound

MEGA-DEX DMT β

MEGA-DEX DET β

MEGA-DEX DAC β

MEGA-DEX DMP β

Configuration

Citronellal

-

1.1

3.1

1.3

 

Hydroxycitronellal

1.0

1.1

2.9

-

 

Perillyl aldehyde

6.4

8.2

1.9

4.1

 

Resolutions of the enantiomer separations of alcohols measured by GC-MS

Compound

MEGA-DEX DMT β

MEGA-DEX DET β

MEGA-DEX DAC β

MEGA-DEX DMP β

Configuration

2-Butanol

-

-

2.2

-

 

Citronellol

1.2

1.3

1.8

-

 

3-Hexanol

-

-

1.7

0.9

 

Fenchyl alcohol

2.7

8.6

7.0

4.2

 

1-Phenylethanol

6.0

6.1

8.0

9.0

 

1-Phenyl-2 pentanol

4.1

1.1

3.0

3.3

 

1-Phenil 1-propanol

2.0

3.9

4.8

5.3

 

2-Phenil-1-propanol

3.2

3.1

7.6

2.0

 

Geosmin

1.7

1.3

1.0

3.4

 

Isoborneol

3.6

3.7

9.7

2.1

 

Isomenthol

4.4

8.6

8.8

6.3

 

Isopinocampheol

5.6

1.8

2.0

-

 

Lavandulol

8.6

13.7

-

4.5

S, R

Linalool

3.9

7.4

1.4

5.3

 

Linalool oxide

9.6

-

-

13.9

(+) trans / (-) trans

Linalool oxide

4.8

-

-

9.6

(+) cis / (-) cis

Menthol

1.3

1.3

5.0

1.3

 

2-Methylbutanol

1.2

2.4

2.8

1.2

 

6-Methyl-5hepten-2-ol

6.3

6.7

1.5

8.2

 

4-Methyl-1-phenylpentanol

3.5

2.3

7.0

2.9

 

Neoisomenthol

11.0

17.4

4.0

10.1

 

Neomenthol

6.9

6.4

4.6

3.1

 

Nerolidol

2.2

4.3

-

2.2

X cis / Y cis

Nerolidol

2.7

4.5

-

3.2

Z trans / W trans

1-Octen-3-ol

1.4

1.2

1.4

-

 

1,3-Octanediol

1.0

1.2

2.7

1.6

 

2-Octanol

1.0

1.0

-

-

 

3-Octanol

-

1.0

1.5

0.4

 

Patchenol

-

-

-

3.9

 

Perillyl alcohol

-

-

-

3.5

 

Terpinen-4-ol

2.4

1.7

22.8

4.0

 

α-Terpineol

5.1

6.9

2.7

1.9

 

Tetrahydrolinalool

4.2

7.0

-

6.6

 

Resolutions of enantiomer separations of acids measured by GC-MS

Compound

MEGA-DEX DMT β

MEGA-DEX DET β

MEGA-DEX DAC β

MEGA-DEX DMP β

Configuration

Citronellic acid

1.7

1.1

-

-

 

Chrysanthemic acid

8.4

7.5

-

11.2

 

2-Phenylpropionic acid

-

2.0

3.4

3.6

 

2-Methylbutyric acid

2.1

1.5

1.0

4.5

 

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