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Flavor & Fragrance Compounds Analysis GC COLUMNS | APPLICATION-SPECIFIC COLUMNS Foods, Flavors & Fragrances Rt®-CW20M F&F Columns (fused silica) (polar phase; Carbowax® polyethylene glycol—not bonded) • Application-specific columns for flavor and fragrance compounds, specially tested. • True nonbonded Carbowax® 20M polarity. • Temperature range: 60 °C to 220 °C. ID df temp. limits 30-Meter 50-Meter 0.25mm 0.25µm 60 to 220°C 12523 0.32mm 0.33µm 60 to 220°C 12539 Perfect confirmation column for F&F analysis! similar phases HP-20M, Carbowax® 20M Rtx®-1 F&F Columns (fused silica) (nonpolar phase; Crossbond® 100% dimethyl polysiloxane) • Application-specific columns for flavor and fragrance compounds. • Stable to 350 °C. Retention index libraries in the flavor and fragrance industry have been compiled from years of data and thousands of compounds. Any slight variation in column selectivity could render the column useless. Rtx®-1 F&F columns are tailored to match the selectivity required in the industry, while offering excellent thermal stability. Our stringent quality testing ensures column-to-column reproducibility and extended column lifetimes over conventional 100% dimethyl polysiloxane columns. ID df temp. limits 30-Meter 50-Meter 0.25mm 0.25µm -60 to 330/350°C 18023 0.50µm -60 to 330/350°C 18038 1.00µm -60 to 320/340°C 18053 0.32mm 0.25µm -60 to 330/350°C 18024 0.50µm -60 to 330/350°C 18039 18010 1.00µm -60 to 320°C 18054 similar phase HP-1 Technical Service Do you have a technical question Restek’s Technical Service group has answers! Drawing from our extensive libraries of technical information and many years of collective chromatography experience, the experts in Technical Service can help you from set-up to method development. Contact us: For quick answers to commonly asked questions any time of the day, visit www.restek.com/answers or contact us directly: Al Carusone, Technical Service In the U.S. Phone: 1-800-356-1688, ext. 4 Fax: 814-353-1568 e-mail: support@restek.com Outside the U.S. Contact your Restek representative. www.restek.com 71 Website : www.chromtech.net.au E-mail : info@chromtech.net.au TelNo : 03 9762 2034 . . . in AUSTRALIA Mar 2011
GC COLUMNS | APPLICATION-SPECIFIC COLUMNS Foods, Flavors & Fragrances Si Rtx®-65TG Structure 65% O CH 3 Si CH 3 35% O Triglycerides in Foods Analysis Rtx®-65TG Columns (fused silica) (high polarity phase; Crossbond® 65% diphenyl/35% dimethyl polysiloxane) • Application-specific columns, specially tested for triglycerides. • Stable to 370 °C. The Rtx®-65TG phase resolves triglycerides by degree of unsaturation as well as by carbon number. Because of the chemistry required to achieve 370 °C thermal stability, an Rtx®-65TG column should not be used for the analyses of polar compounds. save money! Get six columns for the price of five. Call 800-356-1688, ext. 4, or your Restek representative for details! ID df temp. limits 15-Meter 30-Meter 0.25mm 0.10µm 40 to 370°C 17005 17008 0.32mm 0.10µm 40 to 370°C 17006 17009 0.53mm 0.10µm 40 to 370°C 17007 17010 crossbond® technology reduces bleed, prolongs column lifetime, and allows rejuvenation through solvent rinsing. Sharp resolution of butter triglycerides on an Rtx®-65TG column. Column: Rtx ® -65TG, 30m, 0.25mm ID, 0.10µm (cat.# 17008) Sample: 0.2µL cold on-column injection of 1% butterfat in isooctane Oven temp.: 80°C (hold 1 min.) to 240°C @ 30°C/min. to 360°C @ 4°C/min. (hold 5 min.) Det. temp.: 380°C Carrier gas: hydrogen Linear velocity: 70cm/sec. FID sensitivity: 16 x 10 -11 AFS SPI injector: high performance capillary insert 60°C, 300°C/min. to 400°C (hold 5 min.) please note Triglycerides are often injected via on-column injection. Use 0.53 mm retention gaps and appropriate connectors. • Vu2 Union® (see page 289) • MXT®-Union Connector Kits for Fused Silica (see page 292) T26 T28 T32 T34 T36 T38 T40 T42 T44 T46 T48 T50 T52 T54 min. 0 10 20 30 40 GC_FF00137 Solutions For Your Foods, Flavors & Fragrances Analyses Improved best-in-class GC columns • Standards • Industry experts at your service. Visit us at www.restek.com/fff 72 www.restek.com Website : www.chromtech.net.au E-mail : info@chromtech.net.au TelNo : 03 9762 2034 . . . in AUSTRALIA Mar 2011
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GC Columns Fused Silica Selecting a
Page 3 and 4: GC COLUMNS Detailed Table of Conten
Page 5 and 6: GC COLUMNS FUSED SILICA COLUMNS Sel
Page 7 and 8: GC COLUMNS | CAPILLARY COLUMNS Sele
Page 9 and 10: GC COLUMNS | CAPILLARY COLUMNS Sele
Page 11 and 12: GC COLUMNS | CAPILLARY COLUMNS Colu
Page 13 and 14: GC COLUMNS | CAPILLARY COLUMNS Colu
Page 15 and 16: GC COLUMNS | CAPILLARY COLUMNS Guar
Page 17 and 18: GC COLUMNS | CAPILLARY COLUMNS Fuse
Page 19 and 20: 3-IN-1 TECHNOLOGY Highest Inertness
Page 21 and 22: GC COLUMNS | HIGH-PERFORMANCE RXI C
Page 23 and 24: GC COLUMNS | HIGH-PERFORMANCE Rxi C
Page 29 and 30: GC COLUMNS | HIGH-PERFORMANCE Rxi C
Page 31 and 32: General Purpose Columns Chemically
Page 33 and 34: GC COLUMNS | GENERAL PURPOSE COLUMN
Page 43 and 44: GC COLUMNS | FAST GC Fast GC Fast G
Page 45 and 46: Application-Specific Columns Applic
Page 47 and 48: GC COLUMNS | APPLICATION-SPECIFIC C
Page 53: GC COLUMNS | APPLICATION-SPECIFIC C
Page 87 and 88: GC COLUMNS PLOT COLUMNS PLOT Column
Page 89 and 90: GC COLUMNS | PLOT COLUMNS PLOT Colu
Page 91 and 92: GC COLUMNS | PLOT COLUMNS Alumina B
Page 93 and 94: GC COLUMNS | PLOT COLUMNS Porous Po
Page 95 and 96: GC COLUMNS METAL (MXT®) CAPILLARY
Page 97 and 98: GC COLUMNS | METAL (MXT®) CAPILLAR
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GC COLUMNS PACKED/MICROPACKED COLUM
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GC COLUMNS | PACKED/MICROPACKED COL
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gc columns

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