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73

GC COLUMNS |

APPLICATION-SPECIFIC COLUMNS

Environmental

Method

Compound

List

Column Pair

Analysis Time

(min)

Coelutions

Restek Advantage

8081B

Rtx-CLPesticides /

Rtx-CLPesticides2

7 / 7

0 / 0 • Increase sample throughput

with 7 min analyses and

baseline resolution.

Competitor A set

7 / 8

0 / 1

Competitor B set

10 / 9

0 / 0

8081B

(extended)

Rtx-CLPesticides /

Rtx-CLPesticides2

24 / 23

1 / 2 • Best balance of speed and

selectivity.

• All compounds are resolved on at

least one column.

Competitor A set

27 / 29

0 / 3

Competitor B set

NDP / 16

NDP / 3

8082A

Rtx-CLPesticides /

Rtx-CLPesticides2

7 / 7

n/a

• Fast PCB analysis times.

Competitor A set

6 / 7

n/a

Competitor B set

24 / 21

n/a

8151A

Rtx-CLPesticides /

Rtx-CLPesticides2

13 / 13

1 / 0 • More elution order changes

improve confidence in

confirmational results.

Competitor A set

13 / 13

0 / 0

Competitor B set

16 / 15

1 / 1

504.1

Rtx-CLPesticides /

Rtx-CLPesticides2

6 / 6

0 / 0 • Reliably separate analytes from

trihalomethane interferences.

Competitor A set

6 / 6

0 / 0

Competitor B set

NDP

NDP

505

Rtx-CLPesticides /

Rtx-CLPesticides2 18 / 18.5

1 / 1 • All compounds resolved on at

least one column.

Competitor A set

14 / 14

0 / 1

Competitor B set

35 / 36

1 /2

508.1

Rtx-CLPesticides /

Rtx-CLPesticides2 23.5 / 24

2 / 2 • Good balance of speed and

resolution.

Competitor A set

21 / 23

0 / 3

Competitor B set

18 / 17

2 / 4

552.2

Rtx-CLPesticides /

Rtx-CLPesticides2

12 / 12

0 / 0 • No coelutions—get accurate

results for compounds that

coelute on other columns.

Competitor A set

8 / 9

1 / 1

Competitor B set

NDP/10

NDP/1

Comparison based on published competitor data. All columns tested were 0.32 mm ID. NDP = no data published.

Organochlorine Pesticide Mix AB #2 on Rtx®-CLPesticides and Rtx®-CLPesticides2 (0.32 mm ID column set)

GC_EV00933A

GC_EV00933

0.32 mm ID column analysis

performed in less than 7 min.

Rtx®-CLPesticides

Rtx®-CLPesticides2

For conditions and peak list,

visit

www.restek.com

and enter

GC_EV00933 in the search.

(Organochlorine

pesticides)

(Organochlorine

pesticides)

(Polychlorinated

biphenyls [PCBs],

Aroclors)

(Chlorinated

herbicides)

(EDB, DBCP, TCP)

(Organohalide

pesticides)

(Chlorinated

pesticides,

herbicides,

organohalides)

(Haloacetic acids,

dalapon)

did you know?

Analyzing dirty or

derivatized samples can

contaminate your column.

Restek does not recommend

analyzing trace-level

pesticide samples following

derivatized samples (e.g.,

Methods 8151A and 552.2)

without first performing

inlet maintenance. Standard

steps include trimming the

guard column and changing

the inlet liner, O-ring, seal,

and septum.

www.restek.com/ C

LP7

For more

information go to

Howmuch time do column

changes cost you?

Switch to Rtx®-CLPesticides

columns and analyze pesti-

cides, herbicides, PCBs and

more on a single column set.