5· Gas Handling & Puritication
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GAS HANDLING & PURIFICATION GIBNIK DIGITAL FLOWMETER FOR GAS CHROMATOGRAPHY Accurate and repeatable gas �ow measurement is fundamental to obtaining good results from your Gas Chromatography. The traditional Bubble Flowmeter, relying as it does on the reaction time of the operator, is a potential source of error. GIBNIK Flowmeter (REF: KNK-319-990) eliminates this source of error and makes gas flow measurement easier and more accurate. In addition, traceability to the internationally recognised UK Nacional Physical Laboratory (NPL) standards also helps with the performance of Standard...

GAS HANDLING & PURIFICATION FLOWMETERS & CONTROLLERS Soap Bubble Flowmeters Simple to use; just measure the time it takes a soap �lm to travel between two calibration marks with a stopwatch. Soap Bubble Flowmeters are made from borosilicate glass. All are graduated in milliliters, except the 50 mL �owmeter, which has marks at 0,25 and 50 mL, and the Triple Stage Flowmeter. Flowmeters are supplied with a rubber bulb for the soap solution, rubber tubing, and an instruction sheet. Snoop® liquid leak detector can be used as the bubble solution (not included). Description 1 mL Soap Bubble...

IFICATION Snoop* Leak Detector Snoop is specifically formulated for better and longer bubbling to indicate leaks. A 30 cm long tube permits application in hard-to-reach places. Snoop is non-toxic, non-flammable and leaves no residue. Supplied 236 mL in a plastic squeeze bottle. Description Item No. Snoop Leak Detector AUC205300 Nupro® Needle Valves Nupro Fine Metering Valves give extremely fine flow control in the 0 to 400 cc/min flow range with up to 6.9 bar (100 psi) line pressure. The Nupro Valve has a knurled handle that is adjusted to the desired flow, with no backlash. Eight to...

GAS HAND Porter Flow Controller This controller provides constant low gas flow regardless of the pressure down stream. This allows gas flows to be kept constant through a GC column as the temperature and back pressure increase. The flow rate is linear over a range of 14 full turns of the knob. The Porter Flow Controller is made from aluminum, with an o-ring made of Viton' and a stainless steel diaphragm. Both models include a replaceable inlet filter. Maximum inlet pressure is 17 bar (250 psi), while the minimum pressure is 1 bar (15 psi) higher than the system back pressure. Flow precision...

REGULATORS Two-stage regulators These are high-purity two-stage regulators for more accurate pressure regulation; recommended for GC applications. Maximum inlet pressure is 200 bar (3000 psig). Maximum outlet pressure is 8.5 bar (125 psig). The outlet is 1/8” compression fitting for use with 1/8” OD tubing (may be removed for 1/4” female NPT). Description High Purity Regulator for Hydrogen High Purity Regulator for N2 High Purity Regulator for He High Purity Regulator for Air Standard grade; it should be cleaned before use in gas lines. Copper Tubing, Pre-Cleaned Recommended for carrier gas...

GAS SAMPLING Stainless Steel Sampling Cylinder • Store high-pressure samples safely • Sturdy construction for on-site use • Type 304 Stainless Steel • 6.8 bar (100 psi) maximum pressure with sampling port • 68 bar (1000 psi) maximum pressure without sampling port These seamless stainless steel cylinders allow easy field sampling of high-pressure gases, for sample integrity and safe transportation back to the lab. Two options are available for the end valves 1. Needle Valves - High-flow needle valves at each end control the sample inlet and outlet. The soft Kel-FTM seal requires only light...

Gas Sampling Bags Available in four port configurations. Dual ports are placed on opposite sides. • Polypropylene Fitting - has removable ferrule; use with included septum or 1/4" tube • Halkey Roberts Valve - twist the barb to open / close • Dual Valves - Halkey Roberts and Polypropylene Fitting, for use with septa or 1/4" tube. • Dual valves recommended; fill the bag through the Halkey Roberts Valve; then withdraw sample through the septum *All bags have a 10 bag minim um order. Tedlar* Sampling Bags, 0.05 mm Thickness Recommended for collecting organic vapors, such as automotive or plant...

GAS HAND Gas Sampling Bags & Tubing Metallized-Film Gas Sampling Bags • Impermeable aluminum film layer • Each bag is individually leak tested These are made from a five-layer composite material consisting of nylon/aluminum/ polyethylene with adhesive on both sides of the aluminum. The polyethylene contacts the gas sample, for purity and chemical inertness. These bags are recommended for auto emissions and other samples that need storage before analysis. Bags come with two ports: Halkey Roberts valve and polypropylene Septa/Tube fittings. *All bags have a 10 bag minimum order.

Product Output Total Product Contaminant Removed Purity Adsorbent Size/ Weight Capacity, g ppbv Volume, cc cm; kg Cartridge Systems - 13.8 bar maximum (200 psi) Oxygen, 1.1 < 1 225 30 x 5 x 5; 1.7 Inline Filters - 13.8 bar maximum (200 psi) ZPureTM Dual Oxygen, 0.8 < 5 125 29 x 3 x 3; 0.5 Inline Filters - 6.9 bar (100 psi) Indicating Oxygen Safe Glass Moisture Inline Filters - 69 bar maximum (1000 psi) Model 1000 ! Oxygen, 3.5 Carbon Dioxide Trap 1. Pentane and heavier hydrocarbons. Adsorption capacity and breakthrough volumes vary depending...

Advanced Filter System Advanced Filter System All New Advanced Filter System • Two visible indicators for oxygen and water • All metal and glass construction • High capacity and efficiency in a single cartridge • Expected life of 1 year or more in typical use with up to four GCs • Safety double seal construction, especially using hydrogen gas • Check valves protect gas lines during cartridge replacement • Easy cartridge replacement with simple twist on / off knob Carrier gas contaminants can lead to GC column phase degradation, which can cause interference with your chromatographic results....