ADV06-15_1-412

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Chemical/Petrochemical

Figure 1

An Rtx-l PONAcolumn offers superior performance for ASTMD-6730 method specifications.

Vendor A Column

Temperature

1

Profile

efficiencyfor CS:

3

L

522,974plates

K'

for CS:

0.46

peak asymmetry for t-butanol:

> 5.00does notmeetASTM 0 6730 specification

resolutionof t butanoll2-methylbutene-2:

l.00 doesnotmeetA5TM

0

6730 specification

column24160U

I I I I

i Ii ii i

I I "

i i '

i , i'

iii

iI i

I I i I

45 6

6

8

GCPCOO863

GCPCOOS63A

Vendor BColumn

efficiency for CS:

1

466,089 plates

K'for CS:

0.51 does notmeetA5TM

0

6730 specification

peak asymmetry for

t-butanol:

3.60

resolution of t butanoIl2-methylbutene-2:

I'

,

I '

4.32

6

column 54818

GCPC00864

5

6

Vendor C Column

1

efficiencyfor CS:

489,991 plates

K' for CS:

0.47

peak asymmetry for t-butanol:

l.71

resolutionof t butanoll2-methylbutene-2:

5.01

column 7530

I

I

I

6

4

4

6

Vendor 0 Column

10

efficiency for CS:

483,449 plates

K'forCS:

0.46

peakasymmetry for t-butanol:

l. 59

resolution of t butanoIl2-methylbutene-2:

5.07

column 190915004

I i , I I I i I I I

I

i [ .

i i i

i i ,

i '

ii i ii i

i '

I

I

456

10

4

GC_PC00866

Rtx·-l

PONA Column

efficiencyfor CS:

551,294 plates

K' forCS:

0.48

peak asymmetry for t-butanol:

1.31

resolutionof t butanoll2-methylbutene-2:

4.84

Iii I i i ii i i i i

iii iii

i i i

ii i iii

I i i

I

56 7

l. ethanol

2. pentane(C5)

GCPCOIl867

3. t-butanol

4. 2-methylbutene-2

Column:

100m, 0.25mm

10,

0.501lm

Temperature Profile

Sample:

DHAOxy-5etup mix

Column A:

5°C> 8.23min. > 22°C/min. > 48min.

(Transition Labs #94100)

Column

B:

5°C> 8.84min. > 22°C/min. > 48min.

Inj.:

O.OlJ1L split (splitratio 150:1)

Column C:

5°C> 8.87min. > 22°C/min. > 48min.

Inj. temp.:

275°C

ColumnD:

5°C> 8.19min. > 22°C/min. > 48min.

Carrier gas:

hydrogen

Rtx· ·1PONA:

5°C> 8.20 min. > 22°C/min. > 48min.

Linear velocity: 48cm/sec.

Oven temp.:

35°CandMethod D6730 temperature profile

Del.:

FlO

Del.temp.:

30aoC

6

8

2006.03

800-356-1688·

www.restek.com

• 23 •

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