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Blog posts tagged with 'chem service'

Constant Pressure Isocratic HPLC Pumps | Greyhound Chromatography Laboratory Consumables
Constant Pressure Isocratic HPLC Pumps | Greyhound Chromatography Laboratory Consumables
POPs Persistent Organic Pollutants What’s the answer to our plastic problem? | Chem Service Analysis | Greyhound Chromatography
What’s the answer to our plastic problem? | Greyhound Chromatography
Cannabis Testing for Chromatography | Chem Service Reference Standards | Greyhound Chromatography
Cannabis Testing for Chromatography | Chem Service Reference Standards | Greyhound Chromatography
Cannabis Pesticide Testing Standards | Chem Service Reference Standards | Greyhound Chromatography
Cannabis Pesticide Testing Standards | Chem Service Reference Standards | Greyhound Chromatography
Microplastic pollution found in waterways the length and breadth of Britain | Chem Service Microplastics | Greyhound Environmental
Microplastic pollution found in waterways the length and breadth of Britain | Chem Service Microplastics | Greyhound Environmental
Purifiers Traps and Filters | SGE Trajan Scientific | |Chromatography Experts Greyhound Chromatography

Gas Purifiers, Filters and Traps Supplied by Greyhound Chromatography

Greyhound Gas Purifiers Filters and Traps Image

    Greyhound Chromatography ZPure Filters Catalogue Trajan Gas Purifiers Catalogue Image

Gas Purifiers and Filters are supplied in two designs, In-line and Base Plate.

CRS ZPure Glass In-line Gas Purifiers are convenient point-of-use purifiers with high sensitivity visual indicators for oxygen and water breakthrough. They are available with compression or quick connect fittings in brass and S/S.   The glass body is shielded by an outer polycarbonate protective body.

CRS ZPure Metal In-line Gas Purifiers are high-efficiency traps with outstanding capacity. High quality activated adsorbents ensure long purifier life and efficient contaminant removal. Available in 4 sizes of stainless steel cylinders and with a wide range of compression, quick-connect and push-to-connect fittings.

Choosing the Right Fittings

Do I Need Brass or Stainless Steel Fittings?

Brass and Stainless Steel Gas Filter FittingsBefore selecting brass for long-term applications, the local compliance rules should be studied. Brass alloys nearly always contain lead (3% by weight would be typical), and while presently permitted in most world markets, their status is under review. In some cases, special notifications might be required. We are seeing labs switching to all steel tubing and fittings. If you have stainless steel tubing, then you should always use stainless steel fittings; and if you have copper tubing then you should use brass fittings. Using brass fittings on stainless steel tubing is not recommended. Brass is softer than steel and may not seal onto the tubing as well, risking leaks. You might also see galvanic corrosion, which is a process where the corrosion is accelerated by the 2 dissimilar metals contacting one another.

 

The ZPure PolyGas I Purifier   

ZPure Polygas 1 Purifier Image

 The ZPure PolyGas I Purifier removes a wide range of contaminants including O2, H2O, CO2, CO, halogenated compounds, siloxanes, hydrocarbons heavier than butane, sulfur-containing molecules, ammonia and other gases. It can be used to purify inert gases, He, Ar, N2, and H2, making it ideal for use with GC and GC/MS carrier gas lines. It is also recommended for any application requiring ultra-pure gas free from oxygen, water and hydrocarbons (heavier than butane). It is available in 4 sizes of stainless steel cylinders ranging from 130 cc to 750 cc. The ZPure PolyGas I Purifier is available with standard compression fittings and quick connect fittings offered in ¼" and 1/8" brass and stainless steel.

PolyGas 1 Purifier

Poly Gas Purifier Image

The PolyGas I Purifier will remove O2, H2O, HC, and other trace gases. It is perfect for purifying GC carrier gasses.

 

 ZPure Re-Fillable Filter

The ZPure M Filter is our biggest capacity filter. They are 3.8 Liter (3800 cc) canisters that have the benefits of higher flow rates, and are CRS-refillable* at a reduced price. The canister is made from 316 stainless steel and has stainless steel fitting options in 1/2” VCR, 1/4” compression, and 1/4" quick connect fittings.

 ZPure M Filters are available in contaminant-specific filters for hydrocarbons, moisture, and carbon dioxide*, or multi-contaminant versions including an oxygen/moisture filter, or the ZPure M PolyGas II Purifier which removes moisture and hydrocarbons.

ZPure M - 3.8 Liter Refillable Filters ZPure re-Fillable Filter

VIEW THE FULL RANGE OF PURIFIERS FILTERS AND TRAPS

 

Gas Purifiers from Trajan

 

Trajan Scientific logo Trajan Purifiers Group Image

 

 

Gas Purifiers are an essential part of your GC analysis as contaminants in gases can significantly impact the quality of results.  Oxygen, hydrocarbons and moisture can lead to problems such as noisy baselines, moisture entering the GC column, excessive bleed and septa degradation.  Even if carrier gas is of the highest quality, contaminants can be picked up from every part of the gas line.  Therefore, a gas purifier is need to ensure that maximum productivity is achieved.

Trajan Gas Purifiers from Greyhound Chromatography make changing your gas filter simplicity itself.  The gas purifier system consists of two key parts: the base connecting unit (base plate) and the filters.  The base plate has inlet and outlet connectors for the gas lines, and the system can be wall-mounted or fixed to a bench.  Base plates come with 1,2, or 4 filter capacity and are available for 1/4" or 1/8" gas lines.

The base plate enables the cartridge to be swopped without allowing Oxygen to enter the system.  Spring-loaded check valves automatically seal tight when the exhausted filter is removed and open again when the new filter is locked into position.  No tools are required to secure fittings, simply turn the locking collar to secure the filter in place and continue with your analysis.

Eacg gas filter consists of adsorbent packed into a transparent and virtually unbreakable, heavy-walled polycarbonate housing, with a maximum working pressure of 15 Bar (219PSI)

Trajan Cartridge Type Gas Purifiers are designed to provide fast stabilization times to reduce gas consumption, and provide clean gas to GC and GCMS systems.

The design of the Trajan Cartridge Gas Purifiers and base plates mean that they can directly replace alternative brands of cartridge gas purifiers supplied by Agilent, SGT, Supelco and Restek.

Trajan Base Plate Cartridge Gas Purifiers are upright filters attached to a metal base plate. Each cartridge consists of adsorbent packed into a transparent and virtually unbreakable, heavy-walled polycarbonate housing. The cartridges can be changed without any fear of oxygen entering the system due to the spring-loaded check valves built into the base plate. Their design means they can directly replace other brands of cartridge gas purifiers.

Trajan Big Trap In-Line Gas Purifiers are designed for bulk purification applications or where several instruments are plumbed from a single source. Manufactured from one-piece heavy walled aluminium tube with a 750cm3 capacity.

VIEW THE FULL RANGE OF PURIFIERS FILTERS AND TRAPS

You may also be interested in gREYHOUND'S RANGE OF sYRINGE fILTERS

 

Q-Fil Certified Syringe Filters

 

HPLC Certified Syringe Filters

 

Q-Fil Certified Syringe Filters set the new Quality standard for today’s laboratory syringe filters Manufactured from the highest quality medical grade high density polypropylene, Q-Fil Certified Syringe Filters provide excellent chemical compatibility with acids, alcohols, bases, ethers, glycols, ketones and oils, with maximum operating temperatures of 135°C.

 

Every colour-coded filter is printed with the individual batch number, details of the membrane material and its pore size, on the outside rim of the filter, making them unique for traceability, GLPs and validation purposes.

 

BUY HERE

 

Colour coded Syringe Filters

 

Why filter your samples for HPLC?

 

• To protect the HPLC column, the column inlet frits and capillary columns against blockage (plugging) caused by particulate matter in the sample
• To protect injection valves from damage caused by scratching and wear of the valves internal components, caused by harmful particulate matter in the unfiltered sample, thereby reducing instrument downtime.

 

 

 

About our Quality Control procedures

 

• Every batch of filters is tested by an independent laboratory to ISO 17025 quality procedures

 

• Every individual Q-Fil Certified Syringe Filter is visually inspected to ensure it meets our manufacturing and quality control specifications
• Samples of all our syringe filters and their respective raw technical data are stored for a period of 5 years from the date of manufacture for future reference
• Each batch of filters is tested prior to release for
- External Dimensions
- Bubble Point
- Burst Pressure
- Filter Integrity
- Water Flow Rate
- UV Extractables and compliance with all technical procedures

 

 

 

Why use Greyhound Q-Fil Certified Syringe Filters?

 

• Q-Fil Certified Syringe Filters are manufactured in compliance with ISO 9001:2000 quality procedures

 

• Every box is supplied with a Certificate of Analysis and Conformance to guarantee its batch to batch quality and performance
• The unique encapsulating process developed for these filters, forces the sample to pass only through the membrane, thus avoiding the possibility of leaks or contamination
• Available in the most popular sizes, porosities and membrane types
• Excellent resistance to all routinely used HPLC solvents
• Filter housings are manufactured from high density medical grade polypropylene
• Extremely low level of extractables for highly sensitive work
• Luer connections fully comply with ISO 594-1
• Filters are available with standard and ‘SlimTip’ sized outlets

 

 

 

Selecting the right Q-Fil Certified Syringe Filter

 

• Choose the size of filter based on the volume of sample to be filtered

 

• Choose the filters porosity based on the size of the potential particulates in the sample. It is important to be aware that the finer the porosity of the membrane the greater the pressure will be required to pass the sample through the filter. A sample containing large quantities of particulates is best filtered using a filter with a built-in glass fibre pre-filter
• Choose the type of membrane based on the solvent being filtered.

 


Filter Sizes

 


All our filters have female Luer Lock inlets and are available in three diameters -

 

25mm Diameter
Designed for large sample volumes or solvent filtration
Wide cross sectional area 3.55cm2
Maximum filtration volume >10ml
Maximum operating pressure 550 Kpa

 

13mm Diameter
Suitable for most applications
Filtration area of 0.95cm2
Maximum filtration volume 1 to 10ml Maximum operating pressure 750 Kpa Now available with ‘SlimTip’ (ST) outlet

 

4mm Diameter
Suitable for most applications Ideal for small samples <1ml Pore sizes of 0.20µm and 0.45µm
SlimTip Filters (ST)
13mm diameter syringe filters are now available with the new ‘SlimTip’ outlet for direct filling of microvials.

 

 

 

Pore Sizes

 


Q-Fil Certified Syringe Filters are available in 0.20µm and 0.45µm pore sizes. The 0.20µm filters remove the smallest particulates whilst the 0.45µm filters are designed to remove particulates which would be detrimental to most analytical columns.

 


Pre-filters (page 6) have a glass microfibre membrane which is chemically inert and resists most solvents. Q-Fil glass microfibre pre-filters are recommended for removing large particulates from the sample and are ideal for dissolution tests.

 

Glass microfibre membranes are also available mounted before the microporous filter membrane in the polypropylene housing. The glass pre-filter removes the larger particulates and prevents premature clogging of the filter.

 

 

 

Contact Us!

 

Tel: +44 (0) 151 649 4000

 

Web: www.greyhoundchrom.com

 

Email: info@greyhoundchrom.com

 

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 You may also be interested in 

 

Greyhound Chromatography Syringe Filters  Greyhound Chromatography ZPure Filters   Wellington Laboratories Catalogue Image   Chem Service Catalogue Image   Chem Service Pesticides Catalogue Image

 

High Purity Standards Catalogue    Greyhound Chromatography Reference Standards Guide

 

Ethoxyquin Dimer (CAS # 74681-77-9) Chem Service Reference Standard | Greyhound Chromatography
Ethoxyquin Dimer (CAS # 74681-77-9) Chem Service Reference Standard | Greyhound Chromatography
Greyhound Chromatography Catalogue Downloads | 30% Off GC Columns Promotion

Great 30% Savings off Selected GC Columns 

 

Greyhound Chromatography offers a comprehensive selection of top quality capillary columns from leading Manufacturers: Macherey Nagel, Greyhound and SGE.  This month we are offering 30% off the Greyhound and SGE range.

 

Greyhound Chromatography is a leading global manufacturer and distributor of the highest quality chromatography columns, consumables and certified reference standards available today.  As a technically based scientific supplier, we provide scientists working in many different disciplines, with an unrivalled level of customer service, support, and an extensive range of chromatography and life-science products.  A full range of our Suppliers' catalogues can be found in the Download Section of our website.

 

Further detailed information about the columns we offer are available on our website, including advice and guidance about how to select the right column for your analysis.  There is also a useful cross reference guide to enable you to make comparisons between different manufacturers to ensure that you select the right column at the right price.  Whatever your area of analysis: Chemical; Environmental; Food, Flavours and Fragrances; Fuels and Petrochemicals; Pharmaceutical; we have the column for you.  

At Greyhound we appreciate that quality, reliability and reproducibility are the most important factors when selecting your column.  Our Technical Sales Team are ready to assist you in selecting the most suitable columns for your applications.  Call +44 (0) 151649 4000 or email sales@greyhoundchrom.com

Download or View the catalogues by clicking on the catalogue

 

Greyhound Chromatography Q-Cap Catalogue    SGE GC Applications Guide

 

We also offer GC Columns from Macherey-Nagel  (Not part of the current 30% Off Promotion)

You can view or download many of our Suppliers' Catalogues from the download section of our website https://www.greyhoundchrom.com/downloads  If you require hard copy catalogues we will endeavour to send them to you, with your orders, if they are available.  Many of our suppliers are choosing not to print product catalogues but are making them available in PDF format.  Please email sue@greyhoundchrom.com with your catalogue requirements. 

 

 

You May also be Interested in Greyhound Chromatography's HPLC Pumps

 

  • Super Critical Fluid Pumps - SFC 24

     

    Greyhound Chromatography HPLC Pumps Catalogue Cover Image

     

    HPLC Pumps Specification Chart Image

     

    You can view or download Catalogues and Data Sheets from our Downloads section on our home page.  We will be happy to provide hard copy catalogues (where available), on request, with your orders.

    https://www.greyhoundchrom.com/downloads

     

    Constant Pressure Column Packing System

    Click on the page cover below to be directed to the page turning view of our new HPLC catalogue.

    HPLC Pumps Catalogue Image

    Greyhound Chromatography HPLC Pump Specifications Chart

     

    You can view or download Catalogues and Data Sheets from our Downloads section on our home page.  We will be happy to provide hard copy catalogues (where available), on request, with your orders.

    https://www.greyhoundchrom.com/downloads

     

    Ultra High Pressure Isocratic Pumps - LU Class

    Click on the page cover below to be directed to the page turning view of our new HPLC catalogue.

     

     

     

    Greyhound Chromatography HPLA Pumps Catalogue

     

    HPLC Pumps Chart Image

     

    You can view or download Catalogues and Data Sheets from our Downloads section on our home page.  We will be happy to provide hard copy catalogues (where available), on request, with your orders.

    https://www.greyhoundchrom.com/downloads

     

    Address info: 

    Greyhound Chromatography and Allied Chemicals

    6 Klevin Park, Birkenhead, Meryside, CH41 1LT

    United Kingdom

     

    Constant Pressure Isocratic HPLC Pumps 

    Isocratic HPLC Pump

    Complete Pack in a Box (PIAB) Models

    Sytem includes --

    •  Next Generation CP Class Constant Pressure Pump with pressure transducer, RS-232, and Micro USB control; Stainless Steel; non-flushing pump heads; 110/220 Volt
    •  20 mL packing reservoir assembly with inlet & outlet caps attached
    •  4.6 mm pre-column assembly with packing adapter for 4.6 mm columns
    •  Two (2) 4.6 mm x 150 mm columns
    •  10g bottle of C18 stationary phase
    •  Bracket assembly to mount Packing Reservoir to the pump
    •  Quick-Set Disk to allow full control of the packing process through a computer
    •  Step by step instructions explaining how to set up and pack columns
    •  Set of tubing to connect the system for use
    •  Set of cables to connect the pump to a computer
    •  All necessary fittings and ferrules for tubing connection.

    The CP Class pumps are widely used for LC Column packing, as well as many process applications. Advanced pressure control algorithms ensure consistent bed density and prevent pressure over-shoot by allowing the user to select a wide range of process parameters, including desired pressure set point, ramp rate, and upper flow rate limit. Control software included. Pressure Control Accuracy is dependent on hydraulic system parameters.  Pump automatically adjusts fluid flow to maintain constant system pressure under typical column-packing usage. Pump does not contain an automatic pressure-relief valve.

    SPECIFICATIONS

    Pressure Accuracy

    ± 2% of full scale pressure

    Wetted Materials

    Synthetic Ruby, Sapphire, UHMWPE, PTFE, Ceramic

    Dimensions HxWxD

    6.3" x 10" x 17"  (16 x 25.5 x 43 cm)

    Weight

    30lbs (14 kg)

    Power

    100-240 VAC, (± 10%), 50-60 Hz

    Control

    RS-232, Micro USB, Voltage Flow Control, Run/Stop


    You will see from our website www.greyhoundchrom.com that we are suppliers of Certified Organic and Inorganic Reference Standards and Materials from the world’s leading Standards’ suppliers. We also supply Chromatography Consumables worldwide.  We have access to probably the world’s largest library of Certified Reference Standards and Materials, together with Chromatography consumables from the world’s leading manufacturers.  Our product range includes our own Greyhound branded products; Syringe Filters, Gas Filters, GC and HPLC Columns.

     There are so many products that we can supply to you – from your point of view one of the most interesting facts is that we can supply products from multiple manufacturers to you, in one shipment.  Cutting down on the cost of delivery and ensuring safe, fast delivery to you.  We have highly trained staff in our logistics department who are able to assist with Customs Documentation and Safe transit of your orders.

     Because we represent the world’s leading Reference Standard manufacturers we are able to offer Second Source Reference Standards for accreditation purposes.

     You can view or download many of our suppliers’ catalogues from the Download Section on our Home Page, including our own branded Syringe Filters, HPLC Columns and GC Columns and Gas Filters.

     Looking for something and can’t find it on our website?  Please let me know what you are looking for and I will endeavour to source it for you.

     You can see the UK list price on our website for most of our products, these prices may offer a discount for bulk and repeat orders, please send an enquiry to sales@greyhoundchrom.com for the products you are interested in.  We are pleased to offer contract rates to our registered customers.  Please either email myself, Sue Massie, Marketing Director or info@greyhoundchrom.com

    We look forward to hearing from you and hope that we can be of service to you.

    Contact Us!

    Tel: +44 (0) 151 649 4000

    Web: www.greyhoundchrom.com

    Email: info@greyhoundchrom.com

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     You may also be interested in 

    Greyhound Chromatography Syringe Filters  Greyhound Chromatography ZPure Filters   Wellington Laboratories Catalogue Image   Chem Service Catalogue Image   Chem Service Pesticides Catalogue Image

     

     

 

 

 

 

 

 

 

 

 

 

 

Agilent (Part: 5182-0837) Flat bottom headspace vials, 20ml | Greyhound Chromatography
Agilent (Part: 5182-0837) Flat bottom headspace vials, 20ml | Greyhound Chromatography
Agilent (Part: 5182-0840) 20ml Headspace supply kit high | Greyhound Chromatography
Agilent (Part: 5182-0840) 20ml Headspace supply kit high | Greyhound Chromatography