"Analytical Standards"
Sodium Metabisulfite, Reference Standard
Supplier: USP
USP Reference Standards are specified for use in conducting official USP–NF tests and assays. USP also provides Reference Standards specified in the Food Chemicals Codex as well as authentic substances—high-quality chemical samples—as a service to analytical, clinical, pharmaceutical and research laboratories.
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Acetaldehyde diethylacetal
Supplier: EHRENSTORFER
Acetaldehyde diethylacetal
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Standard reference material, strawberry leaves - trace elements
Supplier: LGC Standards PROMOCHEM
This standard is intended for use in development, validation and quality control of analytical methods for the determination of elements in vegetation.
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Dr. Ehrenstorfer™ Food Standards, Apigenin
Supplier: EHRENSTORFER
This RM is intended for use in a laboratory as a calibration and quality control standard or in method development for analytical techniques.
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Organic reference standards, Serotonin, analytical standard, Supelco®
Supplier: Merck
Organic Standard, Serotonin
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2,3,4,5-Tetrachloroaniline
Supplier: EHRENSTORFER
2,3,4,5-Tetrachloroaniline
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Sodium acetate trihydrate 99.0-101.0%, granular, AR® ACS, Macron Fine Chemicals™
Supplier: MACRON AVANTOR BRAND
AR—The standard Macron Fine Chemicals™ grade of analytical reagents; suitable for laboratory and general use. If the reagent also meets the requirements of the American Chemical Society Committee on Analytical Reagents, it will be denoted as an AR (ACS) reagent.
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Elemental analysis standards, phosphate rock, western, NIST-694
Supplier: LGC Standards PROMOCHEM
This standard material is intended to use in validating analytical methods and in calibrating instruments used in the analysis of phosphate rock, fertilisers and similar materials.
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ISE standards
Supplier: Hach
ISE standards are used to calibrate ion selective electrode measurement systems by coresponding the electrode output with the concentration of the analyte. Pairs of standards with concentrations that differ by a factor of ten are used for analysis.
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Pharmaceutical Analytical Standard, Rhein, Reference Material
Supplier: EDQM
Rhein EP Reference standard, intended for use in laboratory tests only as specifically prescribed in the European Pharmacopoeia.