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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Europium standard solution, 1000 mg/L Eu in dilute nitric acid (from Eu?O?) Certipur® standard for ICP, Supelco®

Supplier: Merck

Europium Standard, 1000 mg/L, Certipur®, Supelco®, Europium, Matrix: 2-3% HNO₃, Application: ICP standards

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Nonionic surfactants standard solution, 100 mg/L Triton® X-100, Supelco®

Supplier: Merck

Organic Standard, Nonionic Surfactants Standard Solution, 1.00 mg/l Triton® X-100, Supelco®, Pack type: Plastic bottle

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Fluoride standard solution, Titrisol®, Supelco®

Supplier: Merck

Fluoride standard solution, 1000 mg/l, Titrisol®, Supelco®, Contents: KF in H₂O, Application: Ion chromatography standards

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Silver standard solution, 1000 mg/L Ag in dil. nitric acid (from AgNO₃) Certipur® standard for ICP, Supelco®

Supplier: Merck

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

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Spectroquant reference standard for Picco, Move and Multy colorimeters, Supelco®

Supplier: Merck

A reference standard for chlorine, chlorine dioxide and ozone, that is designed to reassure the user about the accuracy and reliability of the results from the Picco and Multy colorimeters.

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TraceCERT®, Supelco® Cyanide IC Standard

Supplier: Merck

1000 mg/L cyanide in water, prepared with high purity K₂[Zn(CN)₄] and water.

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Pharmaceutical secondary standard, Valacyclovir hcl, (CRM), Supelco®

Supplier: Merck

Organic Standard, Valacyclovir HCl

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Pharmaceutical secondary standard, Cetyl Alcohol, (CRM), Supelco®

Supplier: Merck

Organic Standard, Cetyl Alcohol

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Nitrofurazone-13C,15N2, analytical standard, VETRANAL™, Supelco®

Supplier: Merck

Organic Standard, Nitrofurazone-13C,15N2

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Supelco® Organic Reference Standard, cis-5,8,11,14,17-Eicosapentaenoic acid methyl ester

Supplier: Merck

Organic Standard, cis-5,8,11,14,17-Eicosapentaenoic acid methyl ester, Ampule of 1 ml

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Aspergillus brasiliensis WDCM 00053 Vitroids™, for Microbiology, Certified Reference Material, Supelco®

Supplier: Merck

Derived from CECT strains.

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Gamithromycin, analytical standard, VETRANAL™, Supelco®

Supplier: Merck

Organic Standard, Gamithromycin

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Organic reference standard, 2-Ethylhexyl salicylate, analytical standard, Supelco®

Supplier: Merck

2-Ethylhexyl salicylate may be used as a reference standard for the determination of octyl salicylate as a UV filter authorized in sunscreens by high-performance liquid chromatography.