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 reestablished 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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Cimaterol-d7, analytical standard, VETRANAL™, Supelco®

Supplier: Merck

Organic Standard, Cimaterol-d7

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Micro particles based on melamine resin FITC-marked, analytical standard, Supelco®

Supplier: Merck

Aqueous suspension, 2,5% solids, Particle Size: 1 µm, Accuracy: std dev <0,1 µm, Analytical standard

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Lead standard solution, 1000 mg/L Pb in dil. nitric acid (from Pb(NO₃)₂) TraceCERT® standard for ICP, Supelco®

Supplier: Merck

Lead Standard, 1000 mg/L, TraceCERT®, Supelco®, Lead, Matrix: Nitric acid dil., Application: ICP standards

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Micro particles based on melamine resin, analytical standard, Supelco®

Supplier: Merck

Aqueous suspension, 10% solids, Particle Size: 10 µm, Accuracy: std dev <0,2 µm, Analytical standard

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Supelco® Organic Reference Standard, (+)-Carvone

Supplier: Merck

Organic Standard, (+)-Carvone, Pack type: Glass bottle

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Supelco® Organic Reference Standard, 1-Decene

Supplier: Merck

Organic Standard, Pack type: Glass bottle

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Organic reference standard, Drometrizole trisiloxane, analytical standard, Supelco®

Supplier: Merck

Drometrizole trisiloxane (DRT) belongs to the lipophilic benzotriazole derivative class of compounds which is commonly utilised in sunscreen cosmetics.

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Organic reference standard, (Z)-2-Methylglutaconic acid, ≥97,0% (HPLC), Supelco®

Supplier: Merck

Organic Standard, (Z)-2-Methylglutaconic acid, ≥97,0% (HPLC)

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4-Hydroxyestradiol, analytical standard, Supelco®

Supplier: Merck

Organic Standard, 4-Hydroxyestradiol

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Organic reference standard, Allyl sulfide, analytical standard, Supelco®

Supplier: Merck

An organosulphur compound from garlic that inhibits chemically-induced carcinogenesis in experimental animals. Competitive inhibitor of Cytochrome P450 2E1 (CYP2E1) that, in turn, blocks the activation of several chemcal carcinogens.