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14146 Ergebnisse für Standards

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Standards

Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the re-established conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.

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Leitfähigkeitsstandard 10.000 µS/cm (25°C; 0,0765 mol/l; KCl) für die Leitfähigkeitsmessung

Supplier: YSI ENVIRONMENTAL

Leitfähigkeitsstandard 10.000 µS/cm (25°C; 0,0765 mol/l; KCl), Referenztemperatur: 25 °C

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GF AAS Multi element standard XVIII, 16 components in 5% HNO₃

Supplier: CUSTOM MADE CHEMICALS LAB

16 components: Ag 10 mg/l, Al 100 mg/l, As 100 mg/l, Ba 50 mg/l, Be 5 mg/l, Cd 5 mg/l, Co 50 mg/l, Cr 20 mg/l, Cu 50 mg/l, Fe 20 mg/l, Mn 20 mg/l, Ni 50 mg/l, Pb 100 mg/l, Sb 100 mg/l, Se 100 mg/l, Tl 100 mg/l in 5% HNO₃.

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Certified reference material, soya-maize oil blend, BCR®

Supplier: LGC Standards PROMOCHEM

A unit contains approximately 5,5 gm soya-maize oil blend in 10 ml amber ampoule.

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Genomic DNA of E. coli O157 (EDL 933), IRMM® certified Reference Material

Supplier: Merck

Certified for genomic DNA Eschericha coli O157, strain EDL 933 confirmed by fliC gene.

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Reference materials, cloud point reference, VHG

Supplier: LGC Standards PROMOCHEM

These reference materials are intended for use in accordance with ASTM D2500 for the determination of the cloud point of petroleum products. The cloud point of a petroleum product is an index of the lowest temperature of their utility for certain applications.

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Solids Certified Reference Material

Supplier: AccuStandard

Solids certified reference material

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NIST® SRM® Spurenelemente in Wasser

Supplier: Merck

Jede Einheit SRM 1643F besteht aus einer Polyethylenflasche mit ca. 250 ml angesäuertem Wasser, versiegelt in einem aluminiumbeschichteten Plastikbeutel, um die Stabilität zu gewährleisten. Das SRM simuliert die Elementzusammensetzung von Süßwasser. Die Lösung enthält Salpetersäure mit einem Volumenanteil von ~2 %, was einer Stoffkonzentration (Molarität) von fast 0,32 mol/L entspricht.

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NIST® Grüntee in fester oraler Darreichungsform

Supplier: Merck

Anwendung: Das SRM ist in erster Linie für die Validierung analytischer Methoden zur Bestimmung von Catechinen, Xanthinen und toxischen Elementen in festen oralen Darreichungsformen, einschließlich grünem Tee und ähnlichen Matrices, vorgesehen. Darüber hinaus eignet es sich auch zur Qualitätssicherung bei der Wertzuweisung an hauseigene Kontrollmaterialien.

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625 kit

625 kit

Supplier: Restek

625 kit contains 604 phenols calibration mix: 4-chloro-3-methylphenol (59-50-7), 2-chlorophenol (95-57-8), 2,4-dichlorophenol (120-83-2), 2,4-dimethylphenol (105-67-9), 4,6-dinitro-2-methylphenol (dinitro-o-cresol) (534-52-1), 2,4-dinitrophenol (51-28-5), 2-nitrophenol (88-75-5), 4-nitrophenol (100-02-7), pentachlorophenol (87-86-5), phenol (108-95-2), 2,4,6-trichlorophenol (88-06-2), benzidines calibration mix: benzidine (92-87-5), 3,3'-dichlorobenzidine (91-94-1), 606 phthalate esters calibration mix: bis(2-ethylhexyl)phthalate (117-81-7), benzyl butyl phthalate (85-68-7), di-n-butyl phthalate (84-74-2), diethylphthalate (84-66-2), dimethylphthalate (131-11-3), di-n-octyl phthalate (117-84-0),31032: 607 nitrosamines calibration mix, n-nitrosodimethylamine (62-75-9), n-nitroso-di-n-propylamine (621-64-7), n-nitrosodiphenylamine (86-30-6),31033: 609 nitroaromatics & isophorone calibration mix: 2,4-dinitrotoluene (121-14-2), isophorone (78-59-1), 2,6-dinitrotoluene (606-20-2), nitrobenzene (98-95-3),31011: sv calibration mix #5/610 pah mix: acenaphthene (83-32-9), acenaphthylene (208-96-8), anthracene (120-12-7), benz(a)anthracene (56-55-3), benzo(a)pyrene (50-32-8), benzo(b)fluoranthene (205-99-2), benzo(k)fluoranthene (207-08-9), benzo(ghi)perylene (191-24-2), chrysene (218-01-9), dibenz(a,h)anthracene (53-70-3), fluoranthene (206-44-0), fluorene (86-73-7), indeno(1,2,3-cd)pyrene (193-39-5), naphthalene (91-20-3), phenanthrene (85-01-8), pyrene (129-00-0),31034: 611 haloethers calibration mix, bis(2-chloroethoxy)methane (111-91-1), bis(2-chloroethyl)ether (111-44-4), 4-bromophenyl phenyl ether (101-55-3), 4-chlorophenyl phenyl ether (7005-72-3), 2,2'-oxybis(1-chloropropane) (108-60-1),31035: 612 chlorinated hydrocarbons calibration mix: 2-chloronaphthalene (91-58-7), 1,2-dichlorobenzene (95-50-1), 1,3-dichlorobenzene (541-73-1), 1,4-dichlorobenzene (106-46-7), hexachlorobenzene (118-74-1), hexachlorobutadiene (87-68-3), hexachlorocyclopentadiene (77-47-4), hexachloroethane (67-72-1), 1,2,4-trichlorobenzene (120-82-1).

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Peptide standard mixture, MassPREP™

Supplier: WATERS

The MassPREP™ peptide standard mixture is useful for the evaluation of HPLC columns and systems dedicated for peptide separations.

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Viscosity standards, general purpose

Supplier: CANNON INSTRUMENT

These certified standards are useful for calibration and verification procedures.

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Silber-Standardlösung, 1.000 mg/L Ag in verd. Salpetersäure-Standard für die AAS und ICP

Supplier: CPI

Silver Standard, 1000 mg/L, Silber, Matrix: Salpetersäure verd., Anwendung: ICP-Standards, AAS-Standards

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Silicone Viscosoty Standards for Rotational Viscometers

Supplier: CANNON INSTRUMENT

CANNON silicone viscosity standards are intended for use with rotational viscometers only.

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Organischer Referenzstandard, Perfluordecansäure 50 µg/ml in Methanol

Supplier: MARKET SOURCE PART PROCESS

Organic Standard, Perfluordecansäure 50 µg/ml in Methanol, Packung: Glass bottle

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PIC (paired ion chromatography) reagents for separation by reverse phase chromatography

Supplier: WATERS

Standards for Ion Pair Chromatography, Paired-ionic chromatography reagent B7, heptane sulfonic acid

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Organischer Referenzstandard, Natriumheptadecafluoroctan-1-sulfonat 50 µg/ml in Methanol

Supplier: MARKET SOURCE PART PROCESS

Organic Standard, Natriumheptadecafluoroctan-1-sulfonat 50 µg/ml in Methanol

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