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Is tedious method development grinding you down? USLC™ stationary phases make column selection so fast and easy that you'll have time for coffee breaks again! Try our new method development toolbox today, and we'll even provide the brewer.

• USLC™ method development toolbox contains all 4 USLC™ stationary phases in 1 convenient package.
• Available for UHPLC (1.9 μm) and HPLC (3 or 5 μm) in 50, 100, or 150 mm lengths.
• Included selection guide makes it even easier to pick the right column the first time.
• Learn more about USLC™ columns at www.restek.com/uslc
  
  Click here for a product listing with no special offer.
  
  (Available for U.S. direct and distribution sales only. Customers outside the U.S.—click here for an alternate offer.)

• Optimized column selectivities guarantee resolution of ethanol, internal standards, and frequently encountered interferences.
• Robust and reproducible column chemistry ensures longer column lifetime and consistent results.
• 2 minute analysis time increases lab productivity.
• Stable to 260 °C
  
  Don’t forget: Blood alcohol analysis requires dual column confirmation when using GC/FID. Click here for information on the secondary column for this application.

• Optimized column selectivities guarantee resolution of ethanol, internal standards, and frequently encountered interferences.
• Robust and reproducible column chemistry ensures longer column lifetime and consistent results.
• 2 minute analysis time increases lab productivity.
• Stable to 260 °C
  
  Don’t forget: Blood alcohol analysis requires dual column confirmation when using GC/FID. Click here for information on the primary column for this application.

• Use to verify the retention time for each compound normally included in a blood alcohol test, and to verify that the compounds are resolved from and do not interfere with one another.
• Includes 1-propanol internal standard.
• Intended for qualitative use only.
• Also available: blood alcohol standards for calibration.

• Use to verify the retention time for each compound normally included in a blood alcohol test, and to verify that the compounds are resolved from and do not interfere with one another.
• Includes tert-butanol internal standard.
• Intended for qualitative use only.
• Also available: blood alcohol standards for calibration.

Don’t replace your base plate just because your Agilent filter was discontinued; Super-Clean filters from Restek are fully compatible with your existing base plate and provide the same protection from contaminants. Stock up today and save!

(Available for U.S. direct sales only. Customers outside the U.S.—click here for alternate offer.)

Click here for specifications.

Related products: base plates

Try now—receive 30% off!

The Merlin Microseal is a long-life alternative to standard septum. The design of Merlin Microseal septa incorporates two separate sliding seal mechanisms. Since the needle or probe tip moves through the ring seals without puncturing them, no coring occurs and the bleed and ghost peaks that can result from damaged septa are prevented.

(Available for US direct sales only. Customers outside the US—click here for alternate offer.)

Advantages of Microseal Septa

• Eliminate septum coring and associated contamination from septum crumbs in the inlet liner.
• Long lifetime due to innovative ring design and consistently low needle insertion force.
• Available for general purpose (3-100 psi) and low pressure (1 to 45 psi) operation.
• For use with 23 gauge (0.63 mm, 0.025″) needle or probe with blunt, truncated, conical tip.

• Proprietary electropolished surface that maintains compound stability.
• High quality, metal-to-metal seal, 2/3-turn valve with stainless steel diaphragms or Bellows design.
• 2-port or 3-port valve available for diaphragm valve; 3-port valve includes -30″ Hg/60 psi vacuum/pressure gauge (other gauges available).
  
  Interested in higher volume discounts? Contact your sales rep for details.

• High quality, metal-to-metal seal, 2/3-turn valve with stainless steel diaphragms.
• Sizes to support a wide range of sampling needs.
• 2-port or 3-port valve available; 3-port valve includes -30″ Hg/60 psi vacuum/pressure gauge (other gauges available).
  
  Interested in higher volume discounts? Contact your sales rep for details.

Assembled sampler includes:

• Stainless steel tee with orifice.
• Variety of orifice sizes, for sampling from 4 minutes to 10 hours.
• 1 1/2″ vacuum gauge (-30″ Hg to 0″ Hg).
• 2 µm frit filter for insertion into 1/4″ compression sample inlet.
• 1/4″ port connector to canister valve.
  
  Air sampling canisters sold separately.

• Use with 1, 3, or 6 L canisters, for grab air sampling.
• Variety of orifice sizes, for fast sampling from 5 to 60 minutes.
• 1/4″ compression fitting connects directly to canister valve inlet.
• Replaceable frit protects orifice and valve from particulates.
• Sample inlet design minimizes water entry into sampling train.
• Individual replacement components available.
  
  Air sampling canisters sold separately.

Free PAH Standard with Rxi®-17Sil MS Column Purchase!

Improve Data Accuracy—Rxi®17Sil MS Columns Separate PAHs That Cannot be Distinguished by MS

Not all 50% phenyl columns are equivalent—Rxi®-17Sil MS columns have a unique phase chemistry that differs from conventional “17” type (50% diphenyl) columns. The resulting selectivity provides better resolution of critical polycyclic aromatic hydrocarbons (PAHs) and lets you quantify isobaric PAHs that cannot be determined by mass spectrometry!

Rxi®-17Sil MS columns are:

• Optimized for PAHs—the best choice for accurate, trace level detection.
• Highly selective, ensuring improved resolution and accurate reporting.
• Individually tested for guaranteed column-to-column reproducibility!
  
  (midpolarity Crossbond® silarylene phase; similar to 50% phenyl/50% dimethyl polysiloxane)
  Similar Phases: DB-17ms, VF-17ms, BPX-50, DB-EUPAH
  
  Click here for more products and resources for environmental analyses.

Save Today on Restek DHA Products—Faster Results, Increased Productivity!
25% Off of Rtx®-DHA columns, Rtx®-5 DHA tuning columns, and deactivated Universal Press-Tight® connectors!
(Available for US direct sales only. Customers outside the US—click here for alternate offer.)

Whether you’re using helium or hydrogen, Restek’s Rtx®-DHA columns, inert Press-Tight® connectors, and optimized D6730 conditions shorten analysis times while improving resolution, allowing you to stay in calibration longer and analyze more samples per shift.

• Stable Rtx®-DHA columns are compatible with hydrogen for 50% faster run times.
• Improved resolution between oxygenates and hydrocarbons for more accurate reporting.
• Individually tested to meet DHA method criteria; guaranteed column-to-column reproducibility!
• Deactivated Universal Press-Tight® connectors ensure an inert sample pathway.
  
  (Crossbond® 100% dimethyl polysiloxane—optimized for hydrocarbon analysis)
  Similar Phases: Petrocol DH, DB-Petro, HP-PONA, CP-Sil PONA C8
  
  Click here for more products and resources for DHA and other petro analyses.

We goofed—which means you can save BIG on these overstock items. Hurry for immediate delivery of top quality air monitoring supplies from Restek!

For detailed product information, click on one of the following links:
Air Canister Heating Jacket
Miniature Canisters