Page 125 - Shimadu Consumables Catalog

Mobile Phase Cleaner for UHPLC/HPLC

Ghost Trap DS/DS-HP

A new high-pressure model for the elimination of impurities from
organic solvents has been added to the Ghost Trap DS* lineup. The
Ghost Trap DS was co-developed with Daiichi Sankyo Co., Ltd. It has
been designed to effectively adsorb impurities in the mobile phase
in order to reduce the time required for method development and
impurity analysis.
The 100 MPa pressure tolerance of the Ghost Trap DS-HP allows it
to be used with UHPLC systems. This permits the effective use of the
Ghost Trap DS for method development by UHPLC and subsequent
transfer to conventional analysis.
* DS: Abbreviation of Daiichi Sankyo (D) and Shimadzu (S)

Consistently Traps Impurities, Even in Organic Solvents
A major feature of the Ghost Trap DS is the ability to
remove impurities, even in organic solvents. When
the Ghost Trap DS is installed between the gradient
mixer and autosampler in reversed phase gradient
analysis, it can trap impurities from the piping and
gradient mixer in addition to those from the mobile
phase. The example on the right shows that it can
effectively trap impurities in mobile phase when the
Ghost Trap DS is installed just downstream of the
gradient mixer.

Example of removing ghost peaks by Ghost Trap DS
(The data is provided by Daiichi Sankyo Co., Ltd.)
Column : ODS column
Mobile Phase : A) 25 mmol/L Phosphate (Potassium) buffer solution (pH 4.0) /
Acetonitrile = 9/1
B) Water/Acetonitrile = 1/9
Flow Rate : 0.65 mL/min
Col. Temp. : 45 ºC
Detection : UV 210 nm
Product Information

Item P/N Description Dimensions Internal Volume * 1 Pressure Tolerance
228-59921-91 Cartridge (2pcs)
30 mmL. × 7.6 mmI.D. Approx. 700 μL
228-59921-92 Cartridge (2pcs) + Holder
Ghost Trap DS 35 MPa
228-59921-93 Cartridge (2pcs)
4.0 mmI.D. × 20 mmL. Approx. 150 μL
228-59921-94 Cartridge (2pcs) + Holder
Ghost Trap DS-HP 228-59931-91 Packed type 2.1 mmI.D. × 30 mmL. Approx. 60 μL 100 MPa
* 1 Note that a delay volume equivalent to the internal volume of the product occurs if the product is installed downstream of the gradient mixer or the confluence of two pumps.
* The product service life differs according to analysis conditions, such as the mobile phase used.
* In analysis using an ion-pairing reagent, the ion-pairing reagent may be retained in the product, influencing the retention time and peak shape.
* Before connecting the analytical column, be sure to thoroughly clean the flow path with mobile phase (close to the final concentration for gradient analysis).
* Note that some impurities may not be removed.
* When performing high-pressure analysis exceeding 35 MPa with a UHPLC system, connect the gradient mixer to the Ghost Trap DS-HP with a pipe for UHPLC (e.g.228-53137-97).

Pg A-121