Consistent resolution, retention times, andpeaksymmetry forparaquatanddiquaton
anUltraQuatcolumn.
HPLC COLUMNS
Ultra Quat Columns
28
Phone: 800-356-1688 or 814-353-1300
restek
innovation
!
AnUltraQuat column and
UltraQuat Reagent Solution
eliminate the need for ion
pairing reagents in
paraquat/diquat analysis.
UltraQuatReagentSolution
Inwater, 20mL/bottle
cat.# 32441 (ea.)
$51
diquat dibromide
paraquat dichloride
Paraquat&DiquatCalibrationMix
1,000µg/mL each inwater, 1mL/ampul
cat.# 32437 (ea.)
$26
Peak List:
Peak time (min.)
1. diquat
7.5
2. paraquat
8.8
Sample:
Inj.:
20µL
Conc.:
20ppm each component (above);
20µg/mL, 40µg/mL, and 100µg/mL
each component at 308nm (left)
and at 257nm (right)
Sample diluent: water
Column:
UltraQuat
Cat.#:
9181565
Dimensions:
150 x 4.6mm
Particle size:
5µm
Conditions:
Mobile phase:
UltraQuat Reagent Solution
(cat.# 32441):
acetonitrile, 95:5 (v/v)
Flow:
1.0mL/min.
Temp.:
27°C
Det.:
UV@ 257nm (paraquat)
UV@ 308nm (diquat)
min.
1
2
LC_0321
min.
Use with Ultra Quat HPLC column. Dilute to 1
litermobile phase, per instructions.
257 nm
308 nm
257 nm
308 nm
1
2
for
more
info
Formore information about
theUltraQuat system, review
Restek Advantage 2004 vol. 3
at
.
Application
Page#
Paraquat/Diquat . . . . . .28, 75
UltraQuatColumns
ChromatographicProperties:
A retentive, high-purity, base deactivated reversedphase packing. Ideal for the analysis of paraquat anddiquat or
other quaternary amineswhenusedwithUltraQuat Reagent Solutionmobile phase additive (cat. #32441).
particle size: 5µm, spherical
pore size: 100Å
pH range: 2.5 to7.5
temperature limit: 80°C
PhysicalCharacteristics:
4.6mm ID
Length
cat.#
price
5µmColumn
150mm
9181565
$399
restek
exclusive
!
free
literature
Simple, SensitiveHPLC/UV
Analysis for Paraquat and
Diquat
These highly charged
quaternary amines are poorly
retained on alkyl stationary
phases. Using only acetoni-
trile, water, and a solvation-
blocking reagent, our
separation system alters the
interactions among analyte,
mobile phase, and stationary
phase, and promotes solubility
of the analytes in the station-
ary phase. In our system, the
detection limit is 6ppb for
either herbicide, and the
analysis is completed in less
than 10minutes. An optimized
solid phase extraction
cartridge concentrates the
herbicides for the analysis.
Call Restek at 800-356-1688
or 814-353-1300, ext. 5, or
contact your Restek
representative, to request
your free copy!
lit. cat.# 580006
