Interchim B DNPH Derivatized Carbonyls HALO 2 C18 0914 .pdf


Nom original: Interchim B- DNPH Derivatized Carbonyls HALO 2 C18 0914.pdfAuteur: Emily Moody

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Application Note: 112-P

Separation of Dinitrophenylhydrazones on HALO 2 C18
PEAK IDENTITIES:

Absorbance @ 360 nm

55
1

45

G0095

2

35

3

4
5

25

6

7

15

9 10
8

14

11 12,13

15

STRUCTUR

5
-5
0

1

2

3

4

5

6

7

8

9

10

Time, min

TEST CONDITIONS:
Column: 2.1 x 100 mm, HALO 2 µm C18
Part Number: 91812-602
Mobile Phase: A/B: 55/45 (to start)
A= Water
B= (Acetonitrile/THF): (80/20 v/v)
Time
%B
0.0-3.5
45
3.5 -10
45 - 60
Flow Rate: 0.5 mL/min.
Pressure: 545 Bar
Temperature: 30°C
Detection: UV 360 nm, VWD
Injection Volume: 0.5 μL
Sample Solvent: 50/50 Acetonitrile/Water
Data Rate: 40 Hz
Response Time: 0.1 sec.
Flow Cell: 2.5 μL semi-micro
LC System: Agilent 1200 SL

1. Formaldehyde-2,4-DNPH
2. Acetaldehyde-2,4-DNPH
3. Acetone-2,4-DNPH
4. Acrolein-2,4-DNPH
5. Propionaldehyde-2,4-DNPH
6. Crotonaldehyde-2,4-DNPH
7. 2-Butanone-2,4-DNPH
8. Methacrolein-2,4-DNPH
9. Butyraldehyde-2,4-DNPH
10. Benzaldehyde-2,4-DNPH
11. Valeraldehyde-2,4-DNPH
12. m-Tolualdehyde-2,4-DNPH
13. p-Tolualdehyde-2,4-DNPH
14. Hexaldehyde-2,4-DNPH
15. 2,5-Dimethylbenzaldehyde-2,4-DNPH
2, 4-DNPH = 2,4-Dinitrophenylhydrazone

STRUCTURES:
Peak
1

R1
-H

2

-H

R2
-H

3

General -2,4-DNPH structure

Using modified EPA methods 8315 and 554, baseline
resolution of the sample components is achieved by the use of
a HALO 2 column and a mobile phase containing both
acetonitrile and tetrahydrofuran (THF). The addition of THF
is necessary to achieve this resolution, which also changes
peak elution order.

4

-H

5

-H

6

-H

7
8

-H

9

-H

10

-H

11

-H

12,13

-H

14

-H

15

-H

FOR MORE INFORMATION OR TO
PLACE AN ORDER, CONTACT:
www.advanced-materials-tech.com
® HALO and Fused-Core are registered trademarks of Advanced Materials Technology, Inc.


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