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Catalog Number: (77695-450)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 300 µg/g (0.0300 wt%) in 20 cSt Mineral Oil, 300 µg/g, VHG, Application: Petroleum Oils & Fuels

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Supplier: Thermo Scientific Chemicals
Catalog Number: (77695-496)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 500 µg/g (0.0500 wt%) in #2 Diesel Fuel, 500 µg/g, VHG, Application: Petroleum Oils & Fuels

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Catalog Number: (77695-491)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 300 µg/g (0.0300 wt%) in #2 Diesel Fuel, 300 µg/g, VHG, Application: Petroleum Oils & Fuels

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Catalog Number: (77695-533)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 25 ug/g in 75% Isooctane/25% Toluene, 25 ug, VHG, Application: Petroleum Oils & Fuels

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Catalog Number: (77695-500)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 50000 µg/g (5.00 wt%) in #2 Diesel Fuel, 50000 µg/g, VHG, Application: Petroleum Oils & Fuels

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Catalog Number: (77695-541)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 500 ug/g in 80% Isooctane/20% Toluene, 500 ug, VHG, Application: Petroleum Oils & Fuels

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Catalog Number: (77695-607)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 50000 µg/g (5.00 wt%) in Crude Oil, 50000 µg/g, VHG, Application: Petroleum Oils & Fuels

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Catalog Number: (77695-540)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 25 ug/g in 80% Isooctane/20% Toluene, 25 ug, VHG, Application: Petroleum Oils & Fuels

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Catalog Number: (470230-432)
Supplier: Wards
Description: Spectrum Tubes demonstrate the wave properties of different gases.


Supplier: Thermo Scientific Chemicals
Description: MDL: MFCD00050038
Supplier: Ricca Chemical
Supplier: Adipogen
Description: The 2,3-diaminonaphthalene (DAN) assay is routinely used in the determination of nitrite/nitrate levels in biological fluids and cellular extracts as one indicator of nitric oxide activity. The assay, as reported by Misko, uses the reaction of DAN with NO2- under acidic conditions to form a detectable fluorescent naphthotriazole. The reaction proceeds at acidic pH at room temperature. Fluorescence is monitored following the addition of NaOH, which raises pH, resulting in lower background and increased sensitivity (Ex/Em: ~365/415nm). However, detection at 450nm is recommended to avoid fluorescent blanks and increase sensitivity. The fluorescent background of DAN is low for maximum sensitivity. Detection limits of NO achieved by this method are in the high-pM range. 2,3-Diaminonaphtaline (DAN) is used as a derivatisation-reagent for the determination of selenium at low detection limits. The 4,5-benzopiaselenol-complex can be quantified by photometry or GC.

Catalog Number: (77695-564)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 15 µg/g (0.0015 wt%) in 75 cSt Mineral Oil, 15 µg/g, VHG, Application: Petroleum Oils & Fuels

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Catalog Number: (77695-449)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 3000 µg/g (0.300 wt%) in 20 cSt Mineral Oil, 3000 µg/g, VHG, Application: Petroleum Oils & Fuels

New Product


Catalog Number: (77695-572)
Supplier: LGC Standards
Description: Sulphur Standard, Sulfur Standard: S @ 300 µg/g (0.0300 wt%) in 75 cSt Mineral Oil, 300 µg/g, VHG, Application: Petroleum Oils & Fuels

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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 at 1-800-932-5000.
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 Regulatory_Affairs@vwr.com
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