GC Section - allpump.co.kr

1 GC Section GC Columns ..328-384. Introduction ..329-330. Capillary Columns, Alltech ..331-352. Custom Columns .. 331. Heliflex ..332-349. Econo-Cap ..333-341. EPA Methods Guide ..350-352. Capillary Columns, Other ..353-364. Astec, Agilent/J&W, SGE, Quadrex . Packed Columns ..365-384. Packed Columns ..365-367. Custom Packings ..368-371. Empty Columns & Supports ..372-384. GC Accessories ..385-443. Capillary Accessories ..385-387. Packed Accessories ..388-389. Gas Management Gas Flow ..390-397. Purifiers ..398-409.

2 Pressure Regulators .. 410. Gas Sampling ..411-414. Ferrules ..415-416. Fittings & Tubing ..417-426. Injection Liners & Accessories ..427-429. Kits .. 430. Septa ..431-436. Tools & Organizers ..437-438. Valves ..439-443. GC Instruments ..444-460. GC Systems & Data Collection ..444-450. Gas Generators Hydrogen ..451-453. Air ..454-455. Nitrogen ..456-458. Air Compressors ..459-460. 328. COLUMNS. Capillary Columns Introduction Alltech Capillary Columns What do I need to consider when selecting a GC column? Internal diameter - Selection is based on sample concentration and instrumentation.

3 Narrow bore( ) are ideal for MS, 5382. and wide bore (.53mm) are ideal for purge and trap applications. Film thickness - Film thickness has a direct affect on retention of the compound. A thicker film thickness retains the compound longer, and a thinner film decreases retention. Column Length - The column length affects both the resolution and the rate of analysis. A. longer column provides better resolution, but doubling the column length will double the time of analysis(isothermal conditions). Stationary Phase - The most important consideration is the stationary phase; this is dependent upon the polarity of the compound, property of the column, and standard methods referenced, - All Alltech columns are presented with their USP designations to help you easily make a selection.

4 - The GC Application Section (p. 522-556) offers proven methods for for a complete listing. - Questions on stationary phase selection? Call Technical Service; we are ready to assist you with your application questions. Alltech Capillary Column Families Econo-Cap Capillary Column Line Heliflex Capillary Column Line Best value in capillary columns anywhere High performance individually tested columns Batch tested to dramatically reduce price Choice of 5" or 7" rugged cage Ideal for aggressive applications Most complete selection of phases Available in the most popular phases Custom columns available to suit your specific application We've taken our most popular capillary columns and perfected the manufacturing procedure

5 To the Heliflex Capillary Columns are manufactured from point that reproducibility is assured. This allows us to the highest quality polyimide coated synthetic fused test these columns in batches instead of individually, silica. They are mounted on a rugged wear-resistant while still offering an unconditional guarantee. Batch cage. Each Heliflex Column is individually tested to testing significantly reduces cost in production without guarantee column performance and comes with a test sacrificing quality. chromatogram, instruction manual, capillary end caps, Each Econo-Cap Capillary Column comes with a copy and a free ceramic column cutter.

6 Of the batch test results, an instruction manual, and Note: Column nuts and ferrules are not included. If capillary end caps. If you are not completely satisfied the column you need is not available in our standard with the quality of your Econo-Cap Capillary Column it offering, request a custom Heliflex Column made to your will be replaced at no charge. individual specifications. Note: Column nuts and ferrules are not included. Copyright 2004 Alltech Associates, Inc. Contact your Alltech office or distributor for current or local prices.

7 329. COLUMNS. Capillary Columns Introduction Capillary Column Phase Cross Reference Use the chart below to cross reference manufacturers' stationary phases as well as USP method designations to Alltech equivalent columns. Slight variations in selectivity may result between different manufacturers' columns. Alltech Standard Phase Cross Reference Standard Phase Cross Reference USP. COMPOSITION ALLTECH DESIGNATION SIMILIAR PHASES. 100% Dimethylpolysiloxane AT -1ms G1, G2, DB -1ms, HP -1ms, Rtx-1ms, CP-Sil,5CB low Bleed/ms G38.

8 100% Dimethylpolysiloxane AT -1ht, AT -1, G1, G2, 007-1, CP-Sil 5CB, DB -1, DB-1ht,HP -1,HP- 101, EC -1 G38 OV -1, RSL -150,RSL-160, Rtx -1, SE-30 , SPB -1, SPB-Sulfur,ULTRA -1, SP-2100, BP-1, DC-200, PE-1, ZB-1. 5% Phenyl equivalent AT -5ms DB -5ms, Rtx -5 Sil ms, BPX-5, 007-5ms, HP -5ms Polysilphenylene-Siloxane (5% Phenyl)- AT -5, G27, 007-2, CP-Sil 8CB, DB -5, D , DB -5ht, HP -5, 95% methylpolysiloxane EC -5 G36 HP -5ms, OV -5, PTE-5, PTE-5 QTM, PAS-5, RSL-200, Rtx -5,Rtx -5ms, SAC-5, SE-54, SPB-5, ULTRA-2, XTI-5, SE-52, BP-5, PE-2, ZB-5.

9 (20% Phenyl)- AT -20, G28, 007-7, Rtx -20, SPB-20, VOCOL, PE-7. 80% methylpolysiloxane EC -20 G32. (35 Phenyl)- AT -35ms G42 DB-35ms, Rtx-35, SPB-35, SUP-HERB, MDN-35, BPX-35. 65% Methylpolysiloxane AT -35 007-11, DB -35, DB -35ms, HP -35, RSL-300, Rtx -35, SPB-35, SPB-608, OV -11, PE-35, Sup-Herb (50 Phenyl)- AT -50ms G3 DB 17ms, H5-50+, Rtx-50, SP-2250, SPB-50, SPB-17, BPX-50. 50% methylpolysiloxane AT -50ht DB-17ht, Rtx-65TG, BPX-50, CP-TAB-CB, AT -50 007-17, DB-17, DB-17ht, HP -17, HP -50+, Rtx -50. SP-50, SP-2250, SPB-50, CP Sil 24CB, PE-17, ZB-50.

10 (6% Cyanopropylphenyl)- AT -624 G43 007-1301, DB -624, DB -1301, HP -1301, HP -624, 94% methylpolysiloxane AT -1301 Rtx -1301, Rtx -624, SPB-1301, SPB-624, 007-624, ZB-624. (14% Cyanopropylphenyl)- AT -1701 007-1701, CP-Sil 19CB, DB-1701, HP -1701, OV -1701, 86% methylpolysiloxane PAS-1701, Rtx -1701, SPB-1701, BP-10, ZB-1701. Trifluoropropylmethyl AT -210 G6 DB -210, RSL-400, Rtx -200, OV -202, OV -210, polysiloxane OV -215, QF-1, SP-2401. (50% Cyanopropylphenyl)- AT -225 G7 007-225, CP-Sil43CB, DB -225, HP -225, OV -225, 50% methylpolysiloxane RSL-500,Rtx -225, BP-225, PE-225.