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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: (PROONMIAP1796)
Supplier: LGC Standards PROMOCHEM
Description: The purity estimate by traditional analytical techniques was obtained by subtraction from 100% of total impurities by HPLC with UV detection, Karl Fischer analysis, thermogravimetric analysis and 1H NMR is 99,3 ± 1,3% mass fraction, (95% coverage interval). Supporting evidence is provided by elemental microanalysis.
UOM: 1 * 5 mg


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Catalog Number: (PROONMIAP1731)
Supplier: LGC Standards PROMOCHEM
Description: Purity estimate obtained from a combination of traditional analytical techniques is 99,3 ± 0,6% mass fraction, (95% coverage interval). The purity estimate by traditional analytical techniques was obtained by subtraction from 100% of total impurities by GC-FID, and Karl Fischer analysis. Supporting evidence is provided by elemental microanalysis and 1H NMR analysis.
UOM: 1 * 25 mg


Supplier: GLASWARENFABRIK KARL HECHT
Description: Dissolved oxygen bottles acc. to Winkler, glass, clear, for the determination of oxygen dissolved in water.

Supplier: SI Analytics
Description: The Titroline® 7800 enhanced the universal features of the TitroLine® 7750 (potentiometric titration and volumetric KF titration), with an additional IDS measurement socket. Hence the TitroLine® 7800 is able to perform potentiometric titrations with analogue or IDS® electrodes as well as volumetric Karl Fischer titrations. The digital (IDS) measurement socket allows the connection of various digital sensors, such as for measuring of conductivity.

Catalog Number: (1.10307.0500)
Supplier: Merck
Description: Test kit, Protein (Biuret Method at 546 nm), reagent solution for approx. 250 determinations
UOM: 1 * 500 mL

Supplier: SI Analytics
Description: TitroLine® 7500 KF is a volumetric generalist for a wide range of uses. Applications include KF volumetry, dead-stop titrations (SO₂, bromine number), dosing tasks and preparation of solutions. Ideal for KF analysis in pharmaceutical, chemical, food and mineral oil industries.

Supplier: Honeywell Chemicals
Description: Formamide, dry, Hydranal™ solubilizer for Karl Fischer titration, Fluka™
Supplier: SIGMA ALDRICH MICROSCOPY
Description: Ozone-scavenging reagent that reacts rapidly with ozone. Potassium indigotrisulfonate has been used: In colorimetric method of measurement of atmospheric ozone, for measuring residual aqueous ozone by gas diffusion flow injection analysis, to determine O₃ concentration in water.

Supplier: Mettler - Toledo
Description: Silicon tubing, 450 mm, for DL31 Karl Fischer titrator, For: Mettler titrators

Supplier: VWR Collection
Description: Borosilicate glass 3.3, used for the determination of water and sediments in crude oils according to test method ASTM D 96.

Catalog Number: (34241-250G)
Supplier: Honeywell Chemicals
Description: Molecular sieve 3A (0.3 nm, 3 Å), Hydranal™ drying agent, for air and gases for Karl Fischer titration, Ø ~2 mm, Fluka™
UOM: 1 * 250 g

MSDS


Supplier: VWR Chemicals
Description:

Indicator tablets for determination of water hardness by titration with EDTA.

Specifications
Minimum weight: ≥ 0.20 g
Maximum weight: ≤ 0.23 g
Disintegration time (at 25°C): ≤ 150 s
Application test: conforms

The tablets are dissolved in 100 ml of the water sample to be tested, which has been buffered at pH 10 with 1 ml of Ammonia/ Ammonium chloride buffer solution, and then titrated with EDTA solution (0,01 M) till the sample turns from red to blue.
Total hardness in mg/l = 10×ml of titrant used.

Control samples of  calcium carbonate should be used to calibrate the method.

MSDS Certificates New Product

Catalog Number: (51535-1G)
Supplier: Merck
Description: Methyl heneicosanoate can find applications as an internal standard in the quantitative determination of fatty acids and their isomers composition using gas chromatography method of analysis (GC).
UOM: 1 * 1 g


Supplier: MP Biomedicals
Description: Neuraminidase (Sialidase: Acylneuraminyl hydrolase; EC 3.2.1.18) From Arthrobacter ureafaciens lyophilised powder with salts. The salts are composed of sodium-potassium phosphate to give a solution of 10 mM phosphate buffer (pH 7) when enzyme is reconstituted with water to make activity of 1 unit per ml. Activity: >60 units/mg protein for NAN-lactose >25 units/mg protein for bovine submaxillary mucin >20 units/mg protein for colominic acid Protein is determined by the method of Lowry et al. with bovine albumin as a standard.6 Unit definition: One unit will liberate 1,0 µmole of N-acetyl-neuraminic acid (NANA) per minute at pH 5,0 at 37 °C, using either one NAN-lactose, bovine submaxillary mucin, or colominic acid as a substrate.

Catalog Number: (PIER23229)
Supplier: Thermo Fisher Scientific
Description: The Compat-Able™ Reagents remove salts, detergents, reducing agents and other substances from protein samples to eliminate interference with protein assays. The protocol selectively precipitates all of the protein, thereby allowing the non-protein components to be easily decanted and removed. The purified, precipitated protein is redissolved in water, making it ready for accurate determination of the protein concentration by standard protein assay methods. The procedure is accomplished in less than 10 min with just a few simple steps. The Compat-Able™ Preparation Set is available conveniently bundled with the Pierce BCA™ Protein Assay Kit.
UOM: 1 * 1 KIT


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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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