These solid-phase extraction columns are produced with a particular focus on quality control and have high quality and stable performance. Each lot of the columns is subjected to major test items, such as loss on drying test, basic performance test and recovery test, and the columns show high reproducibility.


Refer to p.98
This product uses a filler dedicated to solid-phase extraction which has been chemically modified to inhibit the nonspecific adsorption derived from the silica gel base material.

Pretreatment of anionic surfactant by Presep®-C C18
Solid-phase extraction conditions


(*1)

(*2)


*1) 1 L of purified water + 0.1 mg of each reference standard
*2) 1 L of tap water + 0.1 mg of each reference standard
Reference standard: Sodium alkylbenzene sulfonate (C10, C11, C12, C13, C14)

Presep®-C Silica Gel
This product has been designed with a particular focus on improvement of lot-to-lot reproducibility to minimize the variation in quality. Like Presep®-C C18 (ODS), each lot is subjected to major test items, such as loss on drying test, basic performance test and recovery test, and the columns show high reproducibility.

Exanoke if basic performance test
Presep®-C Silica Gel
The product was connected to HPLC, and an analysis was conducted under the conditions shown right.
The filling state can be seen from the shapes of the peaks.
Eluent :n-Hexane/CH3CN=99/1(v/v)
Flow Rate :2.0 mL/min. at 35℃
Detection :UV 254 nm 0.08 AUFS
Sample :1)Toluene 2)Dimethyl Phthalate
      1)/ 2)/n-Hexane = 1/1/48 (v/v/v)
Injection Volume:20 μL

Description Amount of filler
(mg/cartridge)
Wako Cat. No. (Pkg. Size)
Presep®-C C18(ODS)(Short) 470 297-47451   ( 10 units x 5 )
Presep®-C C18(ODS) 900 292-32251   ( 10 units x 5 )
Presep®-C C18(ODS)Type M 5,000 293-48553   ( 20 units )
297-48556   ( 100 units )
Presep®-C Silica Gel 800 294-31851   ( 10 units x 5 )
Presep®-C Alumina 1,700 290-32051   ( 10 units x 5 )
Presep®-C Diatomaceous Earth, Granular 1,000 292-35051   ( 100 units )
2,000 298-35151   ( 100 units )
4,500 294-35251   ( 100 units )
Presep®-C NH2 (Short) 400 299-48751   ( 10 units x 5 )
Presep®-C NH2 820 295-48851   ( 10 units x 5 )
Presep®-C Florisil 800 290-31951   ( 10 units x 5 )
Presep® Florisil 1,000 291-44051   ( 10 units x 5 )
Presep®-C Mirabilite Anhydride 2,300 296-32151   ( 10 units x 5 )
Presep® Polyamide C-200 Type M 2,000 296-64901   ( 10 units x 5 )




← previous page ⇒ to Catalog Index
⇒ to Application Index by Sample
→ next page