NEW! Roc LC Columns: The Reliable Cornerstone for Your LC Lab

Transcription

1 LC s NEW! Roc LC s: The Reliable Cornerstone for Your LC Lab Conventional columns built for solid performance, exceptional value, and compact storage. Pure Chromatography

2 Roc LC s Conventional column built to be the cornerstone for your lab; pressure rated for any 00 bar system. Solid and reliable delivers the peak shape, reproducibility, ruggedness, and performance you demand. Exceptional value for routine analyses and large-volume workflows high-purity, fully porous silica backed by quality manufacturing features a variety of phases to fit most methods. Ideal for a wide range of applications from food to pharma; 5 phases cover 98% of USP methods. Newly designed minimal packaging for compact storage download serial #-specific certificates of analysis at Get more of what you want, and less of what you don t, with Roc LC columns from Restek. rder today at Roc Family of LC Phases C8 C8 Phenyl-Hexyl Cyano Silica N C H CH Si CH CH Si CH CH Si CH CH Si CH Si C8 Phenyl-Hexyl USP Phase Code L L7 L L0 L Stationary Phase Category C8, octadecylsilane C8, octylsilane phenyl cyano bare silica Ligand Type monomeric C8 monomeric C8 phenyl-hexyl cyanopropyl n/a Particle Size μm or 5 μm, spherical μm or 5 μm, spherical μm or 5 μm, spherical μm or 5 μm, spherical μm or 5 μm, spherical Pore Size 00 Å 00 Å 00 Å 00 Å 00 Å Surface Area 00 m /g 00 m /g 00 m /g 00 m /g 00 m /g Carbon Load 0% % 5% 8% n/a End-Cap yes yes yes yes n/a ph Range.5 to to to to to 8.0 Maximum Temperature 80 C 80 C 80 C 80 C 80 C Cyano

3 Roc n with These Dependable LC s Figure : ver,000 injections and Roc columns will still offer reliable performance, regardless of which dimension your method calls for % Efficiency vs # of Injections Roc 5 µm 75 bar x.6 mm 50 x.6 mm 50 x.6 mm 00 x.0 mm 50 x.0 mm 50 x.0 mm Figure : Add a Roc LC guard to further extend the life of your analytical column without impacting your retention, peak shape, or efficiency. Peaks (mg/ml). Uracil 0.0. Toluene.00. Naphthalene Biphenyl 0.06 With guard column : Roc C8 (cat.# 95565); Dimensions: 50 mm x.6 mm ID; ; Pore Size: 00 Å; Guard : Roc C8 0 mm,.0 mm ID, 5 µm (cat.# 95500); Temp.: 0 C; : Custom mix; Diluent: 50:50 Acetonitrile:water; Inj. Vol.: µl; : A: Water, B: Acetonitrile; Gradient (%B): 0.00 min (70%), Without guard column 8.00 min (70%); Flow:.0 ml/min; : 5 nm; :. k =.7 Asymmetry =.07 Plates/m = 97,5 k =.7 Asymmetry =.097 Plates/m = 9,05 LC_GN0565 Figure : From one column to the next, one lot to the next, Roc columns provide results you can trust time and time again. Reversed Phase Peaks tr (min). p-tolunitrile.7. -Butylbenzoic acid 5..,-Dimethylanisole 7.. Mefenamic acid p-xylene 9.7 Normal Phase Peaks tr (min). Benzene.5. Nitrobenzene..,,5-Trinitrobenzene 5.5.,-Dinitrotoluene 7. 5 Lot Lot 5 Lot Lot 5 Lot Lot LC_GN056 : Roc C8 (cat.# 95565); Dimensions: 50 mm x.6 mm ID; ; Pore Size: 00 Å; Temp.: 5 C; Inj. Vol.: 5 µl; : 0.05% Formic acid in water:0.05% formic acid in acetonitrile (0:60); Flow:.0 ml/min; : 0 nm; Cell Temp: 5 C; : LC_GN056 : Roc Cyano (cat.# 956E); Dimensions: 00 mm x.0 mm ID; Particle Size: µm; Pore Size: 00 Å; Temp.: 0 C; : Inj. Vol.: µl; : Water:acetonitrile (80:0); Flow: 0.6 ml/min; : 5 nm; Cell Temp.: 0 C; :. Find the entire Roc column line and order now at

4 Roc LC s from Restek Perform Better Than or Equal To s from ther Vendors Table I: Roc LC columns offer equivalent or better peak shape, retention, and resolution compared to FPP columns from other manufacturers under identical conditions (average values, n = 5). s Analyte tr Area Height USP Tailing Asymmetry (0%) k' Plate Number Resolution Ethylparaben.5,07,609 8, ,78 Roc 5.0,869,68, ,6.5 Ethylparaben.060,,6 5, ,7 Vendor A.889,860,659, , Ethylparaben.87,6,068 9, ,706 Vendor B.07,867,09 87, ,0 9.9 Ethylparaben.76,,099 5, ,6 Vendor C.580,868,7 70, ,700.9 Ethylparaben.57,99,87 57, ,78 Vendor D 5.86,77,785 8, ,95. Vendor E Ethylparaben.87,98,6, ,8 6.89,78,5 7, ,96.7 Chromatographic conditions for Table I and Figure (USP Monograph 8, ) All columns are C8 stationary phase (5 µm, 50 x.6 mm). Conditions are as follows. Mobile phase: water:acetonitrile (:); Flow rate: ml/min; Injection volume: 5 µl; : with UV detector, 80 nm; : 00 µg/ml ethinyl estradiol and 50 µg/ml ethylparaben in water:acetonitrile (:).

5 Figure : Count on Roc LC columns from Restek for outstanding chromatographic performance. Roc LC. Ethylparaben estradiol Roc C8 (cat.# 95565) Dimensions: 50 mm x.6 mm ID Pore Size: 00 Å Temp.: 0 C Inj. Vol.: 5 µl Flow (ml/min) %A , nm LC_EX058 Vendor A. Ethylparaben estradiol Vendor A C8 Dimensions: 50 mm x.6 mm ID Pore Size: 00 Å Temp.: 0 C Inj. Vol.: 5 µl Flow (ml/min) %A , nm LC_EX05 5

6 (Continued from page 5) Figure : Count on Roc LC columns from Restek for outstanding chromatographic performance. Vendor B. Ethylparaben estradiol Vendor B C8 Dimensions: 50 mm x.6 mm ID Pore Size: 0 Å Temp.: 0 C Inj. Vol.: 5 µl Flow (ml/min) %A , nm LC_EX050 Vendor C. Ethylparaben estradiol Vendor C C8 Dimensions: 50 mm x.6 mm ID Pore Size: 80 Å Temp.: 0 C Inj. Vol.: 5 µl Flow (ml/min) %A , nm LC_EX

7 (Continued from page 6) Figure : Count on Roc LC columns from Restek for outstanding chromatographic performance. Vendor D. Ethylparaben estradiol Vendor D C8 Dimensions: 50 mm x.6 mm ID Temp.: 0 C Inj. Vol.: 5 µl Flow (ml/min) %A , nm LC_EX05 Vendor E. Ethylparaben estradiol Vendor E C8 Dimensions: 50 mm x.6 mm ID Pore Size: 00 Å Temp.: 0 C Inj. Vol.: 5 µl Flow (ml/min) %A , nm LC_EX05 7

8 Get Roc Solid Performance CH Si CH Roc C8 s (USP L).0 mm.6 mm µm s 00 mm 95E mm 956E µm s 00 mm 955E mm 9556E mm 9557E H Si Silica Roc Silica s (USP L).0 mm.6 mm µm s 00 mm 950E mm 9506E µm s 00 mm 9505E mm 95056E mm 95057E C8 CH Si CH CH C8 Si C Cyano N CH Roc C8 s (USP L7).0 mm.6 mm µm s 00 mm 95E mm 956E µm s 00 mm 955E mm 9556E mm 9557E Roc Phenyl-Hexyl s (USP L).0 mm.6 mm µm s 00 mm 955E mm 9556E µm s 00 mm 9555E mm 95556E mm 95557E Roc Cyano s (USP L0).0 mm.6 mm µm s 00 mm 956E mm 9566E µm s 00 mm 9565E mm 95656E mm 95657E Roc LC Guard Cartridges Protect your Roc LC columns with minimal effect on retention, peak shape, or efficiency. Guard column cartridges require Roc guard column holder (cat.# 58). Description qty. 0 x.0 mm cat.# Roc C8 Guard Cartridge -pk Roc C8 Guard Cartridge -pk Roc Cyano Guard Cartridge -pk Roc Phenyl-Hexyl Guard Cartridge -pk Roc Silica Guard Cartridge -pk Roc LC Guard Holder Requires separate guard column cartridges (available from Restek). Description qty. cat.# Roc LC Guard Holder for 0 x.0 mm Roc Guard Cartridges ea. 58 Replacement PEEK Ferrules for Roc LC Guard Holder Description qty. cat.# Replacement PEEK Ferrules for Roc LC Guard Holder -pk. 69 Find the entire Roc column line and order now at Pure Chromatography Questions about this or any other Restek product? Contact us or your local Restek representative ( Restek patents and trademarks are the property of Restek Corporation. (See for full list.) ther trademarks in Restek literature or on its website are the property of their respective owners. Restek registered trademarks are registered in the U.S. and may also be registered in other countries. 08 Restek Corporation. All rights reserved. Printed in the U.S.A. Lit. Cat.# GNSSB-UNV