Buffers and Standards
Buffers and Standards
Hydrogen ion buffers comprising a mixture of a weak acid and its conjugate base or vice-versa and used to stabilize pH; also diluents, washing solutions, and standard-value solutions used for a broad array of scientific calibration purposes.
The buffers used to calibrate pH meters may be certified and/or traceable to the National Institute of Standards and Technology (NIST). These buffers may also be color-coded for easy identification:
- Red: pH 4.0
- Yellow: pH 7.0
- Blue: pH 10.0
(±)-Geosmin and 2-Methylisoborneol Solution, Certified Reference Material, MilliporeSigma™ Supelco™
100 μg/mL Each Component in Methanol
Allopurinol Related Compound F Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards
(-)-Bilobalide, ≥96.0% (HPLC), MilliporeSigma™ Supelco™
(−)-Bilobalide is a Ginkgo terpenoid, available as the main pharmacological component in Ginkgo biloba extract. It exhibits neuroprotectant activity.
PESTANAL™ 2,4,6-Trichloroanisole-d5, MilliporeSigma™ Supelco™
2,4,6-Trichloroanisole-d5 is a deuterium labeled analog of 2,4,6-trichloroanisole belonging to the class of chloroanisole, a major contaminant in wine industry.
Fluticasone Related Compound J Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards
Ibuprofen sodium salt, 98% (GC), MilliporeSigma™ Supelco™
Ibuprofen belongs to the class of non-steroidal anti-inflammatory drugs, widely used for the treatment of mild to moderate pain and several forms of arthritis.
Risedronate Sodium Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards
Folic Acid Impurity B Pharmaceutical Secondary Standard, MilliporeSigma™ Supelco™
Pharmaceutical secondary standards for application in quality control provide pharma laboratories and manufacturers with a convenient and cost-effective alternative to the preparation of in-house working standards