You Searched For: Water+Determination+(by+Karl+Fischer+method)+Standards


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Supplier: Honeywell Chemicals
Description: Buffer acid buffer substance for KF titration, HYDRANAL™, Glass bottle
Catalog Number: (HONC34433-500ML)
Supplier: Honeywell Chemicals
Description: Anolyte for coulometric Karl Fischer titration, for cells with and without diaphragm, Methanol-based, free of Imidazole (free of CMR substances).
UOM: 1 * 500 mL


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Supplier: Honeywell Chemicals
Description: HYDRANAL™ Humidity absorber is a drying agent for air and gases for Karl Fischer titration (with indicator).
Catalog Number: (661-0222)
Supplier: Hach
Description: The TitraLab® KF1000 from Hach enables users to easily and quickly perform moisture content determinations. The automatic system requires only small sample quantities to deliver accurate and precise results for water content applications. The KF1000 utilises the application specific kit to make it quick and easy for anyone to set up and operate a test.
UOM: 1 * 1 items


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


Supplier: Avantor
Description: di-Sodium L(+)-tartrate dihydrate 99.0-101.0%, crystals, BAKER ANALYZED® ACS suitable for standardization of Karl Fischer reagents, J.T.Baker®
Catalog Number: (40662-100MG)
Supplier: Merck
Description: Simazine CRM may also be used as given below: Development and validation of an ultrasonic-assisted dispersive liquid-liquid microextraction (UA-DLLME) method for sample extraction followed by gas chromatography-mass spectrometry based determination of endocrine-disrupting herbicides in the river and seawater samples. Determination of triazine pesticide residues in samples of apples pears carrots potatoes tomatoes avocado cucumber spinach bananas and oranges by modified QuEChERS and solid-phase extraction (SPE) procedures followed by liquid chromatography-photodiode array (LC-DAD) analysis. Multi-residue analysis of 67 pesticides in olive oil olives and avocado samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS) to evaluate various clean-up sorbents. Quantitation of 20 pesticides in eel and shrimp samples by a scheduled multiple reaction monitoring (sMRM) method and QuEChERS with EDTA for sample extraction and purification. Analysis of 35 micropollutants including pesticides in water samples by liquid chromatography-tandem mass spectrometry (LC-MS/MS) after their solid-phase extraction. Simultaneous quantification of 58 pharmaceuticals and personal care products (PPCPs) and pesticides in water samples by solvent-based de-emulsification dispersive liquid-liquid microextraction (SD-DLLME) combined with liquid chromatography-tandem mass spectrometry (LCMS/MS).
UOM: 1 * 100 mg


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


Supplier: SI Analytics
Description: Karl-Fischer titration vessel, TZ 1751, made of glass for coulometry

Catalog Number: (PROONMIAP1795)
Supplier: LGC Standards PROMOCHEM
Description: Purity estimate obtained by subtraction from 100% of total impurities by GC-FID, thermogravimetric analysis, Karl Fischer analysis and 1H NMR is 99,1 ± 1,4% mass fraction, (95% coverage interval). Supporting evidence is provided by elemental microanalysis.
UOM: 1 * 5 mg


Catalog Number: (27198.298)
Supplier: VWR Chemicals
Description: Pyridine, anhydrous ≥99.7%, AnalaR NORMAPUR® ACS, ISO, Reag. Ph. Eur. analytical reagent, for Karl Fischer titration
UOM: 1 * 1 L

Supplier: SI Analytics
Description: Karl-Fischer titration vessel, TZ 1770, DURAN® glass vessel TZ 1775 (30 - 150 ml), removable head made of PP/PTFE, 1 drilling NS 19/NS 14,5/NS 7,5 and 3 drillings with screw threads, titration tip, moisture trap and weighing funnel, For: Titroline® 7750/7800

Catalog Number: (PROONMIAP1730)
Supplier: LGC Standards PROMOCHEM
Description: Purity estimate obtained by subtraction from 100% of total impurities by HPLC with UV detection, thermogravimetric analysis, Karl Fischer analysis and 1H NMR analysis is 96,1 ± 4,0% mass fraction, (95% coverage interval). Supporting evidence is provided by elemental microanalysis and quantitative NMR using certified triphenylphosphine oxide as internal standard.
UOM: 1 * 25 mg


Catalog Number: (PROONMIAD914)
Supplier: LGC Standards PROMOCHEM
Description: The purity value obtained from a combination of traditional analytical techniques is 99,6 ± 1,4% mass fraction, (95% coverage interval). The purity estimate by traditional analytical techniques was obtained by subtraction from 100% of total impurities by GC-FID, thermogravimetric analysis, Karl Fischer analysis and 1H NMR and also supported by elemental microanalysis.
UOM: 1 * 10 mg


Supplier: SI Analytics
Description: The Titroline® 7750 is the all-rounder for both potentiometric titration and volumetric KF titration. The titrator combines the features of the potentiometric titrator TitroLine® 7000 and the volumetric Karl Fischer titrator TitroLine® 7500.

Catalog Number: (PROONMIAD621)
Supplier: LGC Standards PROMOCHEM
Description: Purity estimate obtained by quantitative NMR against an internal standard of dimethyl sulphone is 84,6 ± 1,5% mass fraction, (95% coverage interval). Supporting evidence is provided by HPLC with UV detection, Karl Fischer analysis and theromogravimetric analysis.
UOM: 1 * 1 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 +353 1 88 22222.
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 +353 1 88 22222.
This product is marked as restricted and can only be purchased by approved Shipping Accounts. If you need further assistance, email VWR Regulatory Department at eurega_services@eu.vwr.com
-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 Catalog Number listed above. If you need further assistance, please call VWR Customer Service on +353 1 8822222.
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