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Carbamates on Ultra Carbamate
LC COLUMNS
Application-Specific Columns
Column Characteristics:
particle size: 3 µm or 5 µm, spherical
pore size: 100 Å
pH range: 2.5 to 8
temperature limit: 80 °C
Column Ultra Carbamate (cat.# 9177352)
Dimensions: 50 mm x 2.1 mm ID
Particle Size: 3 µm
Pore Size: 100 Å
Temp.: ambient
Sample 531.1 Carbamate Pesticide Calibration Mixture (cat.# 32273)
4-bromo-3,5-dimethylphenyl-N-methylcarbamate (BDMC)
(cat.# 32274)
Diluent: methanol
Conc.: 50 µg/mL
Inj. Vol.: 1 µL
Mobile Phase
A: 2 mM ammonium acetate:methanol (v/v, 90/10)
B: 2 mM ammonium acetate:methanol (v/v, 10/90)
Time (min) %A %B
0.00 80 20
20 0 100
25 0 100
Flow: 0.2 mL/min
Detector LECO Unique® TOFMS
Run Length: 25 min
Ionization Source Type: high flow ESI
Ion Mode: positive
Desolvation Temp.: 130 °C
Nebulizing Pressure: 100 kPa
Desolvation Gas (N2): 4 L/min
Interface Temp.: 120 °C
Nozzle Voltage: 62 V
Capillary Voltage: 2.75 kV
Instrument Agilent 1100
Acknowledgement LECO Corporation
0 2.5
1
2
3
4
5
6
7
8
9
10
11
5.0 7.5 10.0 12.5 15.0 17.5 20.0 Time (min)
LC_FF0473
Peaks
1. Aldicarb sulfone
2. Aldicarb sulfoxide
3. Oxamyl
4. Methomyl
5. 3-Hydroxycarbofuran
6. Aldicarb
7. Propoxur
8. Carbofurane
9. Carbaryl
10. Methiocarb
11. BDMC (IS)
Chromatographic Properties
Restek chemists developed the Ultra Carbamate column specifically for carbamates analysis.
The unique packing separates 10 target carbamates in just over 10 minutes. The column is
compatible with fluorescence or LC-MS detection.* An Ultra Carbamate column can process
as many as three samples per hour, versus less than two samples per hour on a general-purpose
C18 column. In addition to increased sample throughput, this much faster analysis will
significantly reduce solvent usage—and the costs of disposing of solvent waste.
Ultra Carbamate Columns
*For post-column derivatization/fluorescence detection applications using a 4.6 mm ID column, the total system dead
volume, including the post-column reactor, must be less than 650 µL. For standard post-column reactor systems, we
recommend a 250 mm x 4.6 mm, 5 µm column. Contact Restek® Technical Service or your local Restek® representative
for more information.
Ultra Carbamate Guard Cartridges
Guard Cartridges
3-pk.
(10 x 2.1 mm)
3-pk.
(10 x 4.0 mm) price
Ultra Carbamate Guard Cartridge 917750212 917750210
2.1 mm ID 3.0 mm ID 4.0 mm ID 4.6 mm ID
Length cat.# price cat.# price cat.# price cat.# price
3 µm Columns
50 mm 9177352 917735E 9177354 9177355
100 mm 9177312 917731E — 9177315
5 µm Columns
250 mm — — — 9177575