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Image Unavailable-92446-5ML

Sodium methoxide 0,5 M for gas chromatography, Sigma-Aldrich®

Catalog Number: (92446-5ML)
Supplier: Merck
Description: Sodium methoxide may be used as a derivatisation reagent to enhance the sensitivity of detection for the subsequent determination of organonitrogen herbicides and fungicide analytes in food samples, and bound fatty acids from acylglycerols, alkylacylglycerols, galactosyldiacylglycerols, glycerophospholipids, and sterol esters by gas chromatography (GC) based techniques.
UOM: 1 * 5 mL

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High pressure syringes

Supplier: Trajan Scientific and Medical
Description: These high pressure syringes are designed for high pressure gas sampling.

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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
Image Unavailable-32538-100MG

Pesticide reference standards, Pyridaphenthion, PESTANAL®, analytical standards, Supelco®

Catalog Number: (32538-100MG)
Supplier: Merck
Description: Pyridaphenthion may be used as a reference standard for the quantification of pyridaphenthion in biological samples using liquid chromatography-atmospheric pressure chemical ionisation mass spectrometry.
UOM: 1 * 100 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
Product Image-2633905.

Inlet liners, SPME-GC, Supelco®

Supplier: Merck
Description: SPME-GC inlet liners are designed for optimum sample introduction for specific injection techniques that are suitable for Agilent, Perkinelmer, Shimadzu, Finnigan, Varian and Thermo scientific equipped with split/splitless inlets.

Image Unavailable-24056.

Capillary columns, special purpose, FAMES, SP-2560, Supelco®

Catalog Number: (24056.)
Supplier: Merck
Description: Specially prepared and tested columns to seperate geometrical position (cis/trans) isomers of fatty acid methyl esters. Seperation of FAMEs should be take place in hydrogenated vegetable oil samples.
UOM: 1 * 1 items
Product Image-SGEA008110

Syringes with valves

Supplier: Trajan Scientific and Medical
Description: These syringes are pre-fitted with valves. They are ideal for sample storage and transportation or to pressurise samples prior to injection.

Image Unavailable-44189-50MG

Organic reference standard, Isoamyl 4-methoxycinnamate, analytical standard, Supelco®

Catalog Number: (44189-50MG)
Supplier: Merck
Description: Isoamyl 4-methoxycinnamate may be used as a reference standard in the determination of isoamyl 4-methoxycinnamate in water samples using liquid chromatography coupled with ultraviolet spectrophotometry detector (LC-UV).
UOM: 1 * 50 mg
Image Unavailable-57219.

SPE tubes, Supelclean™ ENVI-18, Supelco®

Supplier: Merck
Description: This Reversed phase Supelclean™ ENVI-18 are suitable for excellent for cleaning, extracting and concentrating pollutants from aqueous environmental sample (drinking, ground, waste water). Also suitable for extracting herbicides, fungicides and pesticides from waste material.

Product Image-SGEA009920

Jumbo syringes

Supplier: Trajan Scientific and Medical
Description: These syringes are ideal for calibration of medical equipment such as respirators and spirometers, and for stack and air sampling.

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
Image Unavailable-90568-10MG

Organic reference standard, Fenofibric acid, analytical standard, Supelco®

Catalog Number: (90568-10MG)
Supplier: Merck
Description: Used as a reference standard in determination of fenofibric acid in samples of human plasma using high performance liquid chromatography (HPLC) and liquid chromatography coupled with tandem mass spectrometry (LC-MS-MS).
UOM: 1 * 10 mg
Image Unavailable-41397-100MG

Supelco® TraceCERT® Organic Reference Standard, Tebutam

Catalog Number: (41397-100MG)
Supplier: Merck
Description: Tebutam CRM may also be used as given below:
Optimisation of sample extraction based on QuEChERS and dispersive-solid-phase extraction (d-SPE) clean-up for the multi-residue analysis of 120 pesticides 16 polycyclic aromatic hydrocarbons and 22 polychlorinated biphenyls by liquid and gas chromatography coupled with tandem mass spectrometry (MS/MS)
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)
Determination of 90 pesticides 16 polycyclic aromatic hydrocarbons and 22 polychlorinated biphenyls in honey samples by using QuEChERS combined with dispersive solid-phase extraction (SPME) for sample pre-treatment and liquid chromatography-triple-quadrupole tandem mass spectrometry and gas chromatography-ion-trap tandem mass spectrometry for quantitation
Screening and quantification of 569 pesticides in honeysuckle samples by a combination of ultrahigh-performance liquid chromatography (UHPLC) and quadrupole-Orbitrap high-resolution mass spectrometry
Simultaneous determination of 134 pesticide residues in tea samples using d-SPE extraction with a multi-functional filter (MFF) followed by ultra-high performance liquid chromatography (UPLC) and quadrupole time-of-flight mass spectrometry (TOF-MS).
UOM: 1 * 100 mg
Image Unavailable-33981-100MG-R

Pesticide reference standard, Febantel, VETRANAL(TM), analytical standard, Supelco®

Catalog Number: (33981-100MG-R)
Supplier: Merck
Description: Febantel might be utilised as a source of reference standard in the determination of febantel in samples of animal feed and pharmaceutical formulations, using high performance liquid chromatography (HPLC) and high performance liquid chromatography coupled with tandem mass spectrometry (HPLC-MS-MS).
UOM: 1 * 100 mg
Image Unavailable-78069-25MG

Organic reference standard, 2,5-Dihydroxybenzoic acid, analytical standard, Supelco®

Catalog Number: (78069-25MG)
Supplier: Merck
Description: 2,5-Dihydroxybenzoic acid may be used as a reference standard in the determination of 2,5-dihydroxybenzoic acid in biopsy samples using high-performance liquid chromatography coupled with electrochemical detector.
UOM: 1 * 25 mg
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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
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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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