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Du sökte efter: Water+Determination+(by+Karl+Fischer+method)+Standards


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Image Unavailable-ICS006-500ML

Chlorite ion chromatography (IC) standard, Supelco®

Leverantör: Merck
Beskrivning: Chlorite IC standard may be used in the determination of disinfection by-product, chlorite in water samples using ion chromatography technique (IC)

Certifikat

Image Unavailable-94685-500ML

Organic reference standard, Vanadate-molybdate reagent, for phosphate determination, p.a., Supelco®

Artikel nummer : (94685-500ML)
Leverantör: Merck
Beskrivning: Vanadate-molybdate reagent can be prepared by dissolving ammonium molybdate and ammonium vanadate in distilled water along with concentrated nitric acid.
UOM: 1 * 500 mL

Certifikat


Product Image-160204A

VWR®, Buffer, ammonia solution, pH 10 ready to use

Artikel nummer : (160204A)
Leverantör: VWR Chemicals
Beskrivning: Ideal for hardness of water determination.
UOM: 1 * 1 L

Säkerhetsdatablad Certifikat


Image Unavailable-ICNA0215384605

Neuraminidase, MP Biomedicals

Leverantör: MP Biomedicals
Beskrivning: 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.

Product Image-705-1500

Flocculators

Leverantör: VELP SCIENTIFIC
Beskrivning: The FP4, FC S, and JLT Series assist laboratory technicians in the environmental sector by providing tools for conducting the jar test and leaching test, which are essential for water treatment and environmental protection. These tests help determine the most effective methods for improving water quality and assessing the potential environmental risks posed by pollutants.

Image Unavailable-39116-10MG

Supelco® TraceCERT® Organic Reference Standard, Tricyclazole

Artikel nummer : (39116-10MG)
Leverantör: Merck
Beskrivning: The tricyclazole CRM may also find the following uses: Determination of tricyclazole content in paddy rice using sliver colloid as a substrate and pyridine as an internal standard by surface-enhanced Raman spectroscopy (SERS). To detect residues of tricyclazole and thiram in pear fruit extracts using SERS. Dissipation studies of penoxsulam tricyclazole and profoxydim in rice paddy systems using HPLC-Diode Array Detection (DAD). Determination of tricyclazole residues in rice using liquid chromatography-tandem mass spectrometry (LC-MS/MS) along with the QuEChERS method of sample preparation. Degradation of tricyclazole (TC) in an aqueous solution and real pesticide industry wastewater (RPW) by electron beam (EB) radiation.
UOM: 1 * 10 mg
Product Image-99566.180

VWR®, Pure Water viscosity standard

Artikel nummer : (99566.180)
Leverantör: VWR Chemicals
Beskrivning: Pure Water viscosity standard have certified data for kinematic viscosity, dynamic viscosity and density at 5, 20, 25 and 37 °C.
UOM: 1 * 100 mL

Säkerhetsdatablad Certifikat


Image Unavailable-30988-50MG

Supelco® TraceCERT® Organic Reference Standard, Flutolanil

Artikel nummer : (30988-50MG)
Leverantör: Merck
Beskrivning: The flutolanil CRM may also find following uses: Examine the reproductive endpoints on the gonad endocrine system of the parental zebrafish after chronic exposure to different concentrations of flutolanil for 60 days. Spectroscopic analysis of acetamiprid flutolanil and etofenprox residues extracted from tomato fruits. Development and validation of two robust chromatographic methods for estimation of tomatoes specific acetamiprid flutolanil and etofenprox residues on fruits before food processing and serving. To investigate the developmental toxicity and the potential mechanism of thyroid endocrine disruption induced by flutolanil in zebrafish embryos based on H¹ NMR metabolomics analysis. To develop a sensitive LC-MS/MS analytical method for the determination of residual flutolanil and its principal metabolites and conjugates in livestock and seafood products.
UOM: 1 * 50 mg
Image Unavailable-SCOI285216650

Accessories for titrators, Karl Fischer, coulometric, TitroLine® KF (trace)

Artikel nummer : (SCOI285216650)
Leverantör: SI ANALYTICS
Beskrivning: Generating electrode with diaphragm
UOM: 1 * 1 Items
Product Image-99349.154

VWR®, Total Acid Number (TAN) standards

Leverantör: VWR Chemicals
Beskrivning: Total Acid Number (TAN) standards are specifically manufactured for the verification of analytical instruments used to determine acid number by potentiometric titration. Each standard is certified in strict accordance with international test method protocols, ASTM D664 / IP 177.

Säkerhetsdatablad Certifikat

Product Image-99352.202

VWR®, Total Base Number (TBN) standards

Leverantör: VWR Chemicals
Beskrivning: Total Base Number (TBN) standards are specifically manufactured for the verification of analytical instruments used to determine base number by potentiometric titration. Each standard is certified in strict accordance with international test method protocols, ASTM D2896 / IP 276.

Säkerhetsdatablad Certifikat

Product Image-ORIO9778BNWP

Metallic combination electrodes, Orion™

Leverantör: Thermo Orion
Beskrivning: The metallic redox/ORP electrodes can be used to make direct measurements of redox potentials or to perform potentiometric titrations. The double platinum Orion™ combination electrode is designed for performing accurate Karl Fischer titrations.

Image Unavailable-44789.AE

ICP-MS internal standard solution for 200,8 & CLP ILM05,2, Specpure®

Artikel nummer : (44789.AE)
Leverantör: Thermo Fisher Scientific
Beskrivning: These standards are applicable for the determination of elements as dissolved elements in ground waters, surface waters, and drinking water, and total recoverable elements in these waters as well as wastewaters, sludges, and soils samples.
UOM: 1 * 100 mL

Säkerhetsdatablad Certifikat


Product Image-160274X

Potassium iodate-iodide (0,713 g/L KIO₃) 0.02 N i vattenlösning stabilised volumetrisk lösning

Leverantör: VWR Chemicals
Beskrivning: Standard solution for the determination of sulphite in boiler water.

Säkerhetsdatablad Certifikat

Product Image-ENZOADI907030A

Creatinine colorimetric detection kit

Artikel nummer : (ENZOADI907030A)
Leverantör: ENZO LIFE SCIENCES
Beskrivning: The creatinine colorimetric detection kit utilises a single step liquid detection reagent that is safer and less time consuming than other assay methods.
UOM: 1 * 1 KIT
Image Unavailable-18996-50MG

Supelco® TraceCERT® Organic Reference Standard, Metrafenone

Artikel nummer : (18996-50MG)
Leverantör: Merck
Beskrivning: 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
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Lager för denna produkt är begränsat, men kan vara tillgänglig i ett lager nära dig. Se till att du är inloggad på hemsidan så att tillgängligt lager kan visas. Om call fortfarande visas och du behöver hjälp, ring oss på 08-621 34 20.
Lager för denna produkt är begränsat, men kan vara tillgänglig i ett lager nära dig. Se till att du är inloggad på hemsidan så att tillgängligt lager kan visas. Om call fortfarande visas och du behöver hjälp, ring oss på 08-621 34 20.
VWR International AB säljer bara etanol till skattebefriade kunder. Denna produkt ä reglerad enligt svensk lagstiftning. Om ytterligare information krävs av dig kommer du att kontaktas via e-post.
VWR International AB säljer bara etanol till skattebefriade kunder.
Denna produkt ä reglerad enligt svensk lagstiftning. Om ytterligare information krävs av dig kommer du att kontaktas via email.
Produkten har blockerats av din organisation. Vänligen kontakta din inköpsavdelning för mer information.
Lösenordet och säkerhetsfrågan associerade med ditt Kundnummer har gått ut. Vänligen ändra ditt lösenord och din säkerhetsfråga.
Denna produkt är inte längre tillgänglig. Alternativ kan vara tillgängliga genom att söka med VWR art.nr ovan. Om du behöver ytterligare hjälp, ring VWR Kundservice på 08-621 34 20.
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