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.
Potassium Standard for IC, TraceCERT®, Supelco®
Supplier: Merck
Potassium Standard, 1000 mg/L, TraceCERT®, Supelco®, Potassium, Matrix: H₂O/tr HNO₃, Application: Ion chromatography standards
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Sulphate standard solution, concentrate, 1000 mg SO₄, Titrisol®, Supelco®
Supplier: Merck
Titrisol® standards are traceable to standard reference material from NIST.
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Iron standard solution, 1000 mg/L Fe in dil. nitric acid (from Fe(NO₃)₃) Certipur® standard for ICP, Supelco®
Supplier: Merck
Iron Standard, 1000 mg/L, Certipur®, Supelco®, Iron, Matrix: Nitric acid dil., Application: ICP standards
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Cesium standard solution, 1000 mg/L Cs in dil. nitric acid (from CsNO₃) Certipur® standard for ICP, Supelco®
Supplier: Merck
Cesium Standard, 1000 mg/L, Certipur®, Supelco®, Cesium, Matrix: 2-3% HNO₃, Application: ICP standards
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Tellurium standard solution, 1000 mg/L Te in 0,5 M nitric acid (from H₆TeO₆) Certipur® standard for AAS, Supelco®
Supplier: Merck
Tellurium Standard, 1000 mg/L, Certipur®, Supelco®, Tellurium, Matrix: 0,5 M HNO₃, Application: AAS standards
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Dysprosium standard solution, 1000 mg/L Dy in dilute nitric acid (from Dy₂O₃) Certipur® standard for ICP, Supelco®
Supplier: Merck
Dysprosium Standard, 1000 mg/L, Certipur®, Supelco®, Dysprosium, Matrix: 2-3% HNO₃, Application: ICP standards
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Refractive index standards according to Ph. Eur., Supelco®
Supplier: Merck
Several reference materials for use in testing instruments are described in the European pharmacopoeias (e.g. Ph Eur. 2.2.6). In this case, the substances trimethylpentane, toluene and methylnaphthalene are prescribed. This instrument test should be carried out prior to every analysis. The comprehensive product range includes standards suitable for practically every operating range; the range 1,3915 to 1,6160 (20 °C) is covered.
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Ammonium standard solution, 1000 mg/L NH₄ in water (from (NH₄)Cl) TraceCERT® standard for Ion Chromatography, Supelco®
Supplier: Merck
Ammonium Standard, Ammonium Standard for IC TraceCERT®, 1000 mg/L NH4+ in water (nominal concentration), Application: Ion chromatography standards
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Organic reference standard, Chloroethylene 2000 µg/ml in methanol, Supelco®
Supplier: Merck
Organic Standard, Chloroethylene 2,000 µg/ml in methanol, Pack type: Glass bottle for solids
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Magnesium standard solution, 10000 mg/L Mg in dil. nitric acid (from Mg(NO₃)₂) Certipur® standard for ICP, Supelco®
Supplier: Merck
Magnesium Standard, 10000 mg/L, Certipur®, Supelco®, Magnesium, Matrix: Nitric acid dil., Application: ICP standards
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Cesium standard solution, 1000 mg/L Cs in 0,5 M nitric acid (from CsNO₃) Certipur® standard for AAS, Supelco®
Supplier: Merck
Cesium Standard, 1000 mg/L, Certipur®, Supelco®, Cesium, Matrix: 0,5 M HNO₃, Application: AAS standards
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Zirconium standard solution, 1000 mg/L Zr in 2 M hydrochloric acid (from ZrOCl₂) Certipur® standard for AAS, Supelco®
Supplier: Merck
Zirconium Standard, 1000 mg/L, Certipur®, Supelco®, Zirconium, Matrix: 2 M HCl, Application: AAS standards
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Ruthenium standard solution, 1000 mg/L Ru in 7% hydrochloric acid (from RuCl₃) Certipur® standard for ICP, Supelco®
Supplier: Merck
Ruthenium Standard, 1000 mg/L, Certipur®, Supelco®, Ruthenium, Matrix: 7% HCl, Application: ICP standards
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Arsenic standard solution, concentrate, 1000 mg As in water (from As₂O₅) Titrisol® standard for AAS, Supelco®
Supplier: Merck
Arsenic Standard, 1000 mg/L, Titrisol®, Supelco®, Arsenic, Matrix: H₂O, Application: AAS standards
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Beryllium standard solution, 1000 mg/L Be in 0,5 M nitric acid (from BeO.(Be(OAc)₂)₃) Certipur® standard for AAS, Supelco®
Supplier: Merck
Beryllium Standard, 1000 mg/L, Certipur®, Supelco®, Beryllium, Matrix: 0,5 M HNO₃, Application: AAS standards
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#: 20864.320
Supplier: VWR Chemicals
#: 83640.320
Supplier: VWR Chemicals
#: 31770.294
Supplier: VWR Chemicals
#: 1.00030.2500
Supplier: Merck
#: 83645.320
Supplier: VWR Chemicals