GL Sciences / Porapak

GL Sciences-Porapak

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Porapak is a porous polymer material used in gas chromatography. The material is available in bulk as well as in pre-packed columns. Due to its porous structure, this material can be used for analysing volatile compounds and low-boiling solvents.

 

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Applications

1mx2.3mm ID SUS column, 80/100 mesh, 30°C, 25ml/min He

Compounds

Porapak P

Porapak Q

Porapak R

Porapak S

Porapak N

Porapak T

Oxygen

0.23

0.24

0.24

0.24

0.24

0.24

Nitrogen

0.23

0.24

0.24

0.24

0.24

0.24

Argon

0.23

0.24

0.24

0.24

0.24

0.24

Carbon monoxide

0.23

0.24

0.27

0.24

0.24

0.24

Carbon dioxide

0.36

0.65

0.60

0.66

0.90

1.26

Carbonyl sulphide

1.15

3.33

2.83

3.47

4.05

4.71

Sulfur dioxide

2.52

5.87

10.84

23.80

16.50

22.48

Nitric oxide (NO)

0.27

0.30

0.28

0.26

0.28

0.28

Nitrous oxide (N2O)

0.42

0.76

0.66

0.81

0.94

1.22

Methanes

0.26

0.35

0.32

0.38

0.35

0.39

Ethylene

0.45

1.15

0.90

1.01

1.22

1.32

Acethylene

0.53

1.15

1.16

1.20

2.00

2.96

Ethane

0.54

1.60

1.16

1.36

1.50

1.54

Propylene

1.40

6.44

4.43

5.39

7.14

7.28

Propane

1.40

7.24

5.00

5.98

7.14

7.28

Ammonia

0.65

1.52

1.88

1.77

1.89

2.72

Ethylene oxide

4.45

12.70

12.51

14.82

24.78

34.05

Difluoroethane

1.16

3.90

3.97

4.63

9.00

11.92

Chlorodifluoromethane（Freon 22）

1.22

4.32

5.61

5.60

10.99

13.88

Methyl chloride

2.10

6.16

5.74

7.00

9.76

11.92

Dichlorodifluoromethane（Freon 12）

1.43

7.43

5.73

7.13

9.78

10.28

Chlorodifluoroethanes

2.04

15.44

11.71

13.73

-

-

Dichlorotetrafluoroethanes

10.40

25.75

19.51

20.32

-

-

1mx2.3mm ID SUS column, 80/100 mesh, 175°C, 25mL/min N2, FID

group

Connection

Porapak P

Porapak Q

Porapak R

Porapak S

Porapak N

Porapak T

Acids

Acetic acid

0.39

1.08

2.14

3.68

4.18

5.21

 

Propionic acid

0.65

2.42

4.75

9.05

9.11

10.68

 

iso-Butyric acid

0.91

4.43

8.28

16.41

16.32

18.13

 

Butyric acid

1.05

5.22

9.87

19.71

19.80

22.30

 

iso-valeric acid

1.52

9.69

16.85

36.81

36.79

39.50

 

Valeric acid

1.89

12.12

21.70

45.70

45.30

48.90

Alcohols

Methanol

0.24

0.35

0.39

0.48

0.61

0.69

 

Ethanol

0.30

0.60

0.63

0.76

1.21

1.20

 

iso-propanol

0.37

0.91

0.89

1.03

1.79

1.90

 

tert-butanol

0.38

1.40

1.35

1.69

2.56

2.67

 

n-propanol

0.43

1.22

1.24

1.53

2.52

2.60

 

sec-butanol

0.50

1.93

1.85

2.40

3.69

3.81

 

iso-butanol

0.61

2.18

2.16

2.72

4.63

4.74

 

tert-Pentanol

0.62

3.17

2.90

3.78

5.87

5.84

 

n-butanol

0.69

2.58

2.68

3.39

5.78

5.74

 

iso-pentanol

1.07

4.87

4.75

6.14

10.82

10.76

 

n-Pentano

1.10

5.63

5.67

7.04

12.88

12.40

Aldehydes

Acetaldehydes

0.24

0.44

0.39

0.49

0.65

0.71

 

Propionaldehyde

0.35

0.87

0.79

0.97

1.44

1.46

 

Acrorein

0.35

0.81

0.77

0.91

1.44

1.52

 

iso-butylaldehyde

0.46

1.51

1.37

1.67

2.54

2.50

 

Butyl aldehyde

0.54

1.77

1.62

1.96

3.07

3.04

alkanes

Pentanes

0.34

1.24

1.02

1.19

1.39

1.10

 

Hexane

0.48

2.56

2.03

2.46

3.00

2.20

 

Heptane

0.73

5.26

4.27

5.03

6.22

4.39

 

Octane

1.14

10.99

8.54

10.36

13.28

8.94

Aromatics

Benzene

0.87

2.76

2.56

3.00

4.00

3.74

 

Toluene

1.33

5.72

5.31

6.41

8.54

7.61

 

Ethyl benzene

2.09

11.60

1069

12.98

17.58

15.05

 

o-Xylene

2.52

13.48

12.53

15.32

20.79

18.05

Chloroalkyls

Methylene Chloride

0.41

0.98

0.94

1.09

1.48

1.67

 

Chloroform

0.59

1.89

1.76

2.15

2.91

3.04

 

Carbon tetrachloride

0.75

2.87

2.42

2.98

3.49

3.04

 

1,2-Dichloroethanes

0.78

2.28

2.16

2.56

3.84

4.09

 

1,2-Dichloropropanes

0.98

3.84

3.47

4.23

6.29

6.37

Esters

Methyl formate

0.27

0.51

0.53

0.57

0.91

0.94

 

Methyl acetate

0.38

1.01

0.97

1.11

1.74

1.75

 

Ethyl acetate

0.52

1.99

1.83

2.15

3.30

3.16

 

Methyl propionate

0.57

1.99

1.83

2.15

3.30

3.16

 

Butyl acetate

1.39

8.78

7.35

9.44

14.60

13.88

ether

Diethyl ether

0.33

1.41

0.98

1.27

1.45

1.28

Ketones

Acetones

0.33

0.89

0.81

0.96

1.59

1.66

Inorganic

water

0.25

0.32

0.41

0.35

0.61

0.83

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