Standards, D

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  • Dionex™ Perchlorate-ISTD

    Thermo Scientific

    The Thermo Scientific™ Dionex™ Perchlorate-ISTD is used in quantitation methods.

  • Dimethylpolysiloxane 1mL

    SPEX CertiPrep

  • Didymium Oxide Wavelength Calibration Standard

    GFS Chemicals

    Didymium oxide (4%) in 10% v/v perchloric acid. Sealed in a far UV quartz cell for wavelength scale accuracy. For both UV and visible region of the spectrum.

  • DEPC (Diethyl pyrocarbonate)

    bioWORLD

    Inhibitor of nucleases used as a modification reagent for His and Tyr residues in proteins. High Purity Grade Purity (Chromatographic): >98.5% Purity (Acid assay): >97.5% Refractive Index: 1.3973 Appearance: Liquid Boiling Point: 93-94°C (lit.) at 18 mmHg …

  • Di-Sodium hydrogen phosphate dihyd

    bioWORLD

    A reagent with high buffering capacity Synonym: Disodium Hydrogen Phosphate; Sorensen's Phosphate Loss on drying: 18.0 - 22.0% Arsenic (As): 3µg/g Fluoride: 0.005% Insolubles: 0.2%

  • 500 ppm Dichloroacetate Standard for IC

    Inorganic Ventures

    Inorganic Ventures' 500 ppm Dichloroacetate Standard for IC is a 500 mL certified reference material set in a water matrix for stability. This dichloroacetate standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date…

  • Diesel Fuel #2 Composite Standard

    Restek

    CAS #: 68334-30-5 Conc. in Solvent and Volume: 50,000 µg/mL in methylene chloride, 1 mL/ampul

  • Dichromate, 1,000 ppm, Ion Chromatography Standard Solution

    GFS Chemicals

    Concentration (as Cr2O7) 1,000 +/- 10 ug/mL Matrix: Na2Cr2O7, water

  • Dysprosium ICP Standard Traceable To SRM From NIST Dy2O3 In HNO3 2-3% 1000 mg/L…

    MilliporeSigma

    UN No.: 3264 pH: 0.5 (H2O, 20°C) Solubility: (20°C) soluble Density: 1.012 g/cm3 (20°C) Ignition Point: 0.5 (H2O, 20°C)

  • Dextran

    bioWORLD

    A multi-use, branched glucan Reagent Grade Moisture: <3.0% Residue upon ignition: <1.0% Specific Rotation: +187 to +191 Appearance: Solid PH Value: pH (6%, water): 5.5%

  • 1,4-Dioxane

    Restek

    2,000 μg/mL in P&T methanol

  • DIPHENYLGUANIDINE, Primary Standard

    GFS Chemicals

    Standard material for acids especially in non-aqueous titration

  • DISODIUM EDTA, Primary Standard

    GFS Chemicals

    Complexing agent used to determine many metal ions by titration

  • DNA, Fish testes (sheared/denatured)

    bioWORLD

    Biotechnology Grade 20 mg/ml Solution Appearance: Liquid

  • Diethanolamine

    bioWORLD

    DEA, frequently used as a diluent for PNPP in ELISA assays Also known as bis [2-hydroxyethyl] amine or 2,2'-Iminodiethanol Reagent Grade Refractive Index (300°C): 1.473-1.476 Specific Gravity (300/200°C): 1.09 15% water has been added to maintain a liquid state…

  • 1000 ppm Diethanolamine for IC

    Inorganic Ventures

    Inorganic Ventures' 1000 ppm Diethanolamine for IC is a certified reference material set in a water matrix for stability. This diethanolamine standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . …

  • 1000 ppm Dimethylamine for IC

    Inorganic Ventures

    Inorganic Ventures' 1000 ppm Dimethylamine for IC is a certified reference material set in a hydrochloric acid matrix for stability. This dimethylamine standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . …

  • 1000 ppm Dysprosium for ICP

    Inorganic Ventures

    Inorganic Ventures' 1000 ppm Dysprosium for ICP is a certified reference material set in a nitric acid matrix for stability. This dysprosium standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . …

  • 1000 ppm Dysprosium for AA

    Inorganic Ventures

    Inorganic Ventures' 1000 ppm Dysprosium for AA is a certified reference material set in a nitric acid matrix for stability. This dysprosium standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . …

  • 10,000 ppm Dysprosium for ICP

    Inorganic Ventures

    Inorganic Ventures' 10,000 ppm Dysprosium for ICP is a certified reference material set in a nitric acid matrix for stability. This dysprosium standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date . …

  • DTAC, 50% solution in alcohol

    bioWORLD

  • Dinocap 1mL

    SPEX CertiPrep

  • Diquat 1mL

    SPEX CertiPrep

  • Dodine 1000ppm 1mL

    SPEX CertiPrep

  • DMPI (Dimethyl Pimelimidate2HCl)

    bioWORLD

    A homobifunctional amine-reactive crosslinker Primary amine reactive Appearance: Powder Melting Point: ~122°C (dec.)

  • 500 ppm Dichloroacetate Standard for IC

    Inorganic Ventures

    Inorganic Ventures' 500 ppm Dichloroacetate Standard for IC is a 125 mL certified reference material set in a water matrix for stability. This dichloroacetate standard is Traceable to NIST and manufactured in accordance with our stringent Quality Assurance guidelines. One year Expiration Date…

  • DTBPA (Dithiobis phenyl azide)

    bioWORLD

  • ULTRAcheck Pesticides Sample

    Ultra Scientific

    8 - 12 analytes in concentrate

  • 1,1-Dimethylhydrazine 1mL

    SPEX CertiPrep

  • Dextran sulfate

    bioWORLD

    A glycosaminoglycan that acts as a precipitant for high density lipo- proteins (HDLs). Used in hybridization protocols where it effectively increases the probe concentration accelerating the rate of annealing. Ultra Pure Grade Moisture: <10.0% Heavy metals (as Pb): <0.005% …

  • N,N-Dimethylformamide 1mL

    SPEX CertiPrep

  • 24 Component Mix in Dimethyl Sulfoxide

    SPEX CertiPrep

    While the legalization of cannabis, for both medicinal and recreational purposes, has been gaining speed, legislation and regulation has not necessarily kept pace. Even so, out of a drive for self-regulation and significant consumer safety concerns, many producers and manufacturers are turning to…

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