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GC Columns

Welchrom® Series GC Capillary ColumnPerfect performance—high selectivity, high column efficiencyLow loss, special deactive techniquePrice competitive

Inert Wm-5Ms Gc Column, Every Column Is Strictly Tested.

WM-WAX 20M Excellent selectivity and perfect resolution

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Bleed: 4.3pA

113℃

113℃,Hold 15 min

320℃,Hold 30 minWM-5MS Bleed Test

10℃/min

Welchrom® WM-5MS30 Meter x 0.25mm0.25 Micron Film

8.6pA

320℃12.9pA

Bleed: 4.9pA

WM-1MS Bleed TestWelchrom® WM-530 Meter x 0.25mm0.25 Micron Film

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22℃,min

125℃,Hold 15 min

325℃,Hold 30 min

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Welchrom® WM-WAX 20M30mx0.32mm,WM-WAX 20M0.5 Micron Film110℃ Is othermal

1.2,2-dimethyl-3-pentanol2.2,3-dimethyl-3-pentanol3.3,5-dimethyl-3-hexanol4.6-methyl-2-heptanone5.6-methyl-2-heptanol6.1-ethylcyclopentanol7.2-ethyl-1-hexanol

Alcohols C7-C

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WEL Economical

WM high-performance

Composition of Stationary Phase Polarity Temperature

limit Characteristics and Applications

WEL-30WEL-1

WM-1, WM-1 MS

100% Dimethyl Polysiloxane Nonpolarity -60 to 325/350

Hydrocarbon, Aromatic Compound, Pesticide, Phenols, Herbicide, Amine,

Fatty Acid Methyl Ester etc

WEL-52WEL-54

WM-5 , WM-5MS

5% Phenyl,95% Dimethyl Polysiloxane

Weak polarity -60 to 325/350 Hydrocarbon, Aromatic Compound,

Pesticide, Herbicide, Drugs etc.

WEL-1301 WM-13016% Cyanopropyl-phenyl

94% Dimethyl Polysiloxane

Moderate polarity -20 to 280/300 Alcohols, pesticides, VOC’s, iodine,

pesticide residue etc.

WEL-624 WM-6246% Cyanopropyl

94% Dimethyl Polysiloxane

Moderate polarity -20 to 280/300 VOC, Solvent Impurities etc.

WEL-35 WM-35, WM-35MS

35% phenyl,65% Dimethyl Polysiloxane

Moderate polarity 40 to 320/340 Alcohols, pesticides, drugs

WEL-1701 WM-170114% Cyanopropyl-phenyl

86% Dimethyl Polysiloxane

Moderate polarity -20 to 280/300 Pesticide, Herbicide, Drugs,

Environmental Sample etc.

WEL-17 WM-1750% Phenyl

50% Dimethyl Polysiloxane

Moderate polarity 0 to 300/320 Pesticide, Herbicide, Drugs,

Environmental Sample etc.

WEL-PEG20M WM-InoWax PEG --20M Strong

polarity 40 to 260/280Alcohol, Free Acid, Fatty Acid

Methyl Ester, Polynuclear, Aromatic Compound, Solvent, Essential Oil etc.

WEL-FFAP WM-FFAP Reaction products of PEG --20M and TPA

Strong polarity 40 to 260

Alcohols, Free Acid, Fatty Acid Methyl Ester, Aldehyde, Acrylic

Ester, Ketone etc.

GC Columns

Welchrom ® GC Columns Characteristics

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GC Columns

Welchrom ® GC Columns by USP Listing WEL USP Similar Stationary Phase

WEL-30, WM-1 G1,G2,G9 DB-1, HP-1, OV-1, Rtx-1,SBP-1, CP-Sil 5CB

WEL-1, WM-1 MS G1,G2,G9 DB-1 MS, HP-1 MS, ZB-1 MS, OV-1 MS

WEL-52 , WM-5 G27,G36 BP-5, ZB-5, CP-Sil 8CB, DB-5, HP-5, SPB-5,Rtx-5, OV-5

WEL-54, WM-5MS G27,G36 ZB-5MS, DB-5MS, HP-5MS, OV-5 MS

WEL-1301, WM-1301 G43 DB-1301, HP-1301, PE-1301, Rtx-1301

WEL-624, WM-624 G46 007-624, AT-624, CP-624, DB-624, HP-624, Rtx-502.2, VOCOL

WEL-35, WM-35 G42 DB-35, HP-35, SPB-35, Rtx-35, PE-35, AT-35

WM-35MS G42 DB-35 MS, HP-35 MS, ZB-35 MS, OV-35 MS

WEL-1701, WM-1701 G46 BP-10, CB-1701, CP-Sil 19CB, DB-1701, Rtx-1701

WEL-17, WM-17 G3 DB-17, HP-17, HP-50, Rtx-50, AT-50, ZB-50, SPB-50, CP-Sil 24, SP-2250

WEL-PEG20M WM-InoWax G16 CP-Wax, DB-Wax, HP-Innowax, PE-Wax, Rtx-Wax

WEL-FFAP, WM-FFAP G25, G35 BP-21, HP-FFAP, PE-FFAP, CP-FFAP, DB-FFAP, Nukol

ApplicationsHydrocarbonin Dry Gas Organochlorine Pesticides

Benzenes

Column: Welchrom® WEL-30, 50×0.25 mm,0.5 µm Temperature:40°CInjection port temperature:150°CDetector temperature:150°C Detector: F.I.D.

Column: Welchrom® WEL-1, 30×0.32 mm,0.5 µm Temperature:70°C(3min)7°C/min → 120°C(15 min) Injection port temperature:200°CDetector temperature:200°C Detector: F.I.D.

®

1.α-hexachlorocyclohexane 2. Lindane 3. Heptachlor 4. Aldrin 5. β-hexachlorocyclohexane 6. δ-hexachlorocyclohexane7. Heptachlor epoxide 8. Endosulphan I 9. 4,4' DDE 10. Dieldrin 11. Endrin 12. Endosulphan II 13. 4,4' DDD 14. 4,4' DDT 15. Endrin aldehyde16. Endosulfan sulfate

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GC Columns

Ordering Information

Welchrom® Series GC Packed Column

Length*ID*Thick Film( m*mm*um) 15*0.2*0.25 30*0.25*0.5 30*0.53*0.5 50*0.32*0.25 60*0.32*0.5 100*0.32*0.5

WEL-30 01912-11001 01912-22002 01912-52002 01912-33001 01912-34002 01912-35002

WEL-1 01901-11001 01901-22002 01901-52002 01901-33001 01901-34002 01901-35002

WEL-52 01914-34002 01914-22002 01914-52002 01914-33001 01914-34002 01914-35002

WEL-54 01915-34002 01915-22002 01915-52002 01915-33001 01915-34002 01915-35002

WEL-1301 01905-34002 01905-22002 01905-52002 01905-33001 01905-34002 01905-35002

WEL-624 01908-34002 01908-22002 01908-52002 01908-33001 01908-34002 01908-35002

WEL-35 01921-34002 01921-22002 01921-52002 01921-33001 01921-34002 01921-35002

WEL-1701 01907-34002 01907-22002 01907-52002 01907-33001 01907-34002 01907-35002

WEL-17 01916-34002 01916-22002 01916-52002 01916-33001 01916-34002 01916-35002

WEL-PEG20M 01918-34002 01918-22002 01918-52002 01918-33001 01918-34002 01918-35002

WEL-FFAP 01911-34002 01911-22002 01911-52002 01911-33001 01911-34002 01911-35002

WM-1 03901-11001 03901-22002 03901-52002 03901-33001 03901-34002 03901-35002

WM-1 MS 01901-11001 01901-22002 01901-52002 01901-33001 01901-34002 01901-35002

WM-5 03902-34002 03902-22002 03902-52002 03902-33001 03902-34002 03902-35002

WM-5 MS 01915-34002 01915-22002 01915-52002 01915-33001 01915-34002 01915-35002

WM-1301 01905-34002 01905-22002 01905-52002 01905-33001 01905-34002 01905-35002

WM-624 03908-34002 03908-22002 03908-52002 03908-33001 03908-34002 03908-35002

WM-35 03921-34002 03921-22002 03921-52002 03921-33001 03921-34002 03921-35002

WM-1701 03907-34002 03907-22002 03907-52002 03907-33001 03907-34002 03907-35002

WM-17 03916-34002 03916-22002 03916-52002 03916-33001 03916-34002 03916-35002

WM-InoWax 03909-34002 01918-22002 03909-52002 03909-33001 03909-34002 03909-35002

WM-FFAP 03911-34002 03911-22002 03911-52002 03911-33001 03911-34002 03911-35002

Stationary phaseOV-1, OV-17, OV-101, OV-225, SE-30, SE-52, SE-54, PRG-400, PEG-600, PEG-1500, PEG-4000, PEG-6000, PEG-20M, DEGS, EGA, EGS, QF-1, FFAP, DNP, β, β- Diethoxyacetonitrile, silicone oil, apiezon, squalane, DC series and etc.

Supporter Diatomite( Chrosorb series and etc.), organic supporter

Adsorbent and polymer microspherePorapak series, Proasil series, GDX series, HDG series, SD series, molecular sieve, carbon molecular sieve, graphitizedcarbon black, silica gel, aluminium oxide and etc.

Specificationinner diameter 2-4 mm, length: 0.5-9 m.

Welch also offer GC packed column custom-made. Please provide GC model number; column tube type, stationary phase composition; supporter type and its Particle Size; inner diameter and length and what kind of samples to analysis.

★ Don’t see your needed size or format? Contact Welch or your local distributor for other dimensions.