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Medium pressure injection valves, Upchurch Scientific®

Catalog Number: (560-0168)
Supplier: UPCHURCH SCIENTIFIC
Description: The 6-port medium pressure injection valves feature easy, external sample loop customisation. Simply clean-cut a piece of tubing that represents the volume of sample you wish to inject, taking into account the port-to-port volume of the valve.
UOM: 1 * 1 items
Product Image-AS-69-2203-380

VWR® RediSep® RF, Disposable columns

Catalog Number: (AS-69-2203-380)
Supplier: VWR Chemicals
Description: RediSep® Rf disposable, bare silica columns for flash purification of organic compounds are the benchmark for normal phase separations. This high quality media is specified for high resolution and reproducibility for everyday purifications.
UOM: 1 * 12 items

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Product Image-901-0075

Sample injectors, Rheodyne®

Supplier: IDEX RHEODYNE
Description: Manual sample injectors have two positions, 'Load' and 'Inject'. The 'Load' position allows sample loading into the sample loop or sample chamber. A syringe is commonly used to load sample into the sample injector. After loading, manual rotation of the sample injector's handle to the 'Inject' position allows the flushing of loaded sample onto a column.

Image Unavailable-36372-50MG

Supelco® TraceCERT® Organic Reference Standard, Tebufenpyrad

Catalog Number: (36372-50MG)
Supplier: Merck
Description: Profenofos CRM may also be used as given below: Evaluation of 250 pesticide residues extracted by QuEChERS method from 103 processed fruit samples using ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS. Gas chromatography-tandem mass spectrometry (GC-MS/MS) based analysis of 213 pesticide residues in soybean after their extraction by QuEChERS procedure. Detection of 252 pesticides extracted from surface water samples by solid-phase extraction (SPE) using liquid chromatography quadrupole-orbitrap high-resolution tandem mass spectrometry. Multi-residue analysis of 160 multiclass pesticides using ethyl acetate (EtAC)/n. hexane mixture for extraction from chamomile thyme and marjoram samples and their analysis by gas chromatography-tandem mass spectrometry (GC-MS/MS). Simultaneous determination of 34 pesticides in various environmental water samples by dispersive liquid-liquid microextraction (DLLME) technique in combination with gas chromatography-mass spectrometry(GC-MS/MS). Quantitation of 40 multi-class insecticides and fungicides in 81 apple samples by using gas- and liquid- chromatography-mass following a QuEChERS-based extraction.
UOM: 1 * 50 mg
Image Unavailable-19000-50MG

Supelco® TraceCERT® Organic Reference Standard, Monolinuron

Catalog Number: (19000-50MG)
Supplier: Merck
Description: Monolinuron CRM may also be used as given below: Determination of 252 pesticides extracted from surface water samples by solid-phase extraction (SPE) using liquid chromatography quadrupole-orbitrap high-resolution tandem mass spectrometry. Extraction of 13 pesticides from four groundwater and three river water samples using silica-based MSU-1 mesoporous solid as a sorbent for their solid-phase extraction (SPE) followed by ultra-performance liquid chromatography-triple quadrupole-mass spectrometric (UHPLC- QqQ-MS/MS) determination. Development and validation of a UHPLC-diode array detection (DAD) method for simultaneous determination of urea and tebuthiuron herbicides in four fresh vegetable samples. Multi-residue analysis of 50 herbicides in 51 grain samples of soybean corn and wheat by ultra-performance liquid chromatography-electrospray ionisation-mass spectrometry (UPLC-ESI-MS). Extraction of 109 pesticide residues from different chemical classes from 345 tomato samples by modified QuEChERS method and their determination using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Simultaneous analysis of 238 pesticides and 78 veterinary drugs in 80 bovine milk samples using ultra-fast liquid chromatography-tandem mass spectrometry (UFLC-MS/MS) and gas chromatography-tandem mass spectrometry (GC-MS/MS).
UOM: 1 * 50 mg
Product Image-548-1848

VWR®, Silanised Vials

Catalog Number: (548-1848)
Supplier: VWR Collection
Description: Improve sample analysis sensitivity by eliminating sample/glass reactions.
UOM: 1 * 1.000 items
Image Unavailable-93742-1G

Pentafluorophenylhydrazine ≥98.0% (by GC), LiChropur™ derivatisation reagent, for HPLC, Supelco®

Catalog Number: (93742-1G)
Supplier: Merck
Description: Pentafluorophenylhydrazine may be used as a derivatizing agent in the determination of semi-volatile carbonyl compounds in air and human plasma samples, using high-resolution gas chromatography coupled with gas chromatography (HRGC-MS) and liquid chromatography atmospheric-pressure chemical-ionization mass spectrometry (LC-APCI-MS-MS), respectively.
UOM: 1 * 1 g
Product Image-906-0124

VWR® Hitachi ChromAssist, data station

Supplier: VWR Collection
Description: The newly developed ChromAssist Data Station combines the proven intuitive structure of the Hitachi software family with an innovative new design. As a chromatography data system (CDS), ChromAssist contains all the necessary functions for controlling VWR® Hitachi HPLC and UHPLC instruments, including method creation, sample table, data integration and reporting.

Product Image-7523-02

J.T.Baker® BAKERBOND spe™ SDB, SPE Columns, Polymer Based

Supplier: Avantor
Description: Solid phase extraction, as a sample preparation technique, often requires stationary phases stable in the whole pH range. Styrene-divinylbenzene (SDB) copolymer sorbent can improve the quality of sample preparation.

Certificates

Product Image-505320-U

Solvent desorption tubes, Supelco®

Supplier: Merck
Description: These LpDNPH cartridges are suitable for sampling carbonyls in ambient, indoor, and industrial atmospheres. The derivatives are eluted from the cartridge in acetonitrile and are analysed by HPLC.

Product Image-549-0563

VWR® Gas-Tight Micro Syringes

Supplier: VWR Collection
Description: Micro syringes without needle
General purpose Luer lock connector for use with autosamplers and liquid handling instruments. All parts in contact with sample are made from neutral borosilicate glass and PTFE. This provides excellent performance and an inert sample environment.

Product Image-ACE-PFASD-0502

Avantor® ACE® PFAS Delay Columns

Catalog Number: (ACE-PFASD-0502)
Supplier: Avantor
Description: Background PFAS (Perfluoronated Alkyl Substances) from an LC instrument and mobile phase can interfere with the detection of PFAS in samples. The introduction of a delay column, which is plumbed before the autosampler in the LC system, will delay background PFAS to improve accuracy of PFAS measurement by LC-MS.​
UOM: 1 * 1 items
Image Unavailable-18996-50MG

Supelco® TraceCERT® Organic Reference Standard, Metrafenone

Catalog Number: (18996-50MG)
Supplier: Merck
Description: Metrafenone CRM may also be used in the residue analysis of: 209 pesticides and persistent organic pollutants (POPs) extracted by QuEChERS-based procedure from fresh bovine and chicken liver samples using gas chromatography coupled to tandem mass spectrometry (GC-MS/MS). 252 pesticides extracted from surface water samples by solid-phase extraction (SPE) using liquid chromatography quadrupole-orbitrap high-resolution tandem mass spectrometry. 250 pesticide residues extracted by QuEChERS method from 103 processed fruit samples using ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS). 379 pesticides in human serum samples extracted by QuEChERS method using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Metrafenone in nine fresh vegetable samples using matrix solid-phase dispersion (MSPD) and HPLC-UV. Metrafenone in bitter gourd and soil samples using gas chromatography combined with an electron capture detector (GC-ECD).
UOM: 1 * 50 mg
Image Unavailable-SGEA008775

Headspace/soil gas syringes

Supplier: Trajan Scientific and Medical
Description: The gas tight syringes are fitted with a valve (SVLL) and a special Luer probe with a side hole for efficient sample intake.

Product Image-HI71-25-015-15

Avantor® Hichrom HI-DEX DMT Beta, GC Columns

Supplier: Avantor
Description: Useful for the analysis of chiral compounds in fragrances, pesticides and pharmaceuticals in which the determination of the ratio of enantiomers in a sample is necessary.

Image Unavailable-909-0004

HPLC standards, LiChroTest®, Supelco®

Supplier: Merck
Description: Standard samples for HPLC System Qualification.

SDS Certificates

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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on 0800 22 33 44.
Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the call is still displayed and you need assistance, please call us on 0800 22 33 44
Additional Documentation may be needed to purchase this item. A VWR representative will contact you if needed.
Additional Documentation may be needed to purchase this item. A VWR representative will contact you if needed.
This product has been blocked by your organisation. Please contact your purchasing department for more information.
The original product is no longer available. The replacement shown is available.
Product(s) marked with this symbol are discontinued - sold till end of stock. Alternatives may be available by searching with the VWR Catalogue Number listed above. If you need further assistance, please call VWR Customer Service on 0800 22 33 44.
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