Water
Medchemexpress LLC Water-17O | 13768-40-6 | 99.0% | 19.02 g/mol | H2(17)O | 5 MG
Water-17O is water isotopically enriched with the stable oxygen-17 (17O) isotope for laboratory and analytical applications. It is intended for research use as a tracer and as an internal standard in quantitative spectroscopic and mass-spectrometry methods.
- Isotopically labeled with oxygen-17 for tracer and standard applications.
- High isotopic purity: 99.0%.
- Compatible with NMR, GC-MS, and LC-MS workflows.
- Useful for quantitative analysis and method development.
Alkali Scientific Peptone, 1 Gram Capsules, 500 G
Peptone, available in 1g capsules (500g total per bottle), is a premium protein supplement used to support the growth of a wide variety of microorganisms. This high-quality peptone provides essential amino acids and peptides that are critical for microbial metabolism. The pre-measured 1-gram capsules allow for easy and accurate preparation of culture media without the need for complex weighing or measuring. It is ideal for enriching microbiological media, enhancing microbial growth, and ensuring consistent results in bacterial culture, fermentation, and other microbiological applications. Peptone is commonly used in both research laboratories and industrial microbiological processes.
Alkali Scientific Peptone Water 0.1% 9mL Tube, 10/Pk
Peptone Water 0.1% is a sterile diluent commonly used in food microbiology, environmental testing, and water analysis for preparing microbial suspensions and serial dilutions. The solution contains a low concentration of peptone that helps maintain the viability of microorganisms without significantly promoting growth during the dilution process. Each tube contains exactly 9 mL of sterile diluent, allowing laboratories to easily prepare standard 1:10 serial dilutions by adding 1 mL of sample. The formulation also maintains osmotic balance, helping prevent cell damage that may occur when microorganisms are diluted in distilled water. Peptone Water 0.1% is widely used for preparing samples prior to plating, enumeration, or further microbiological analysis.
Sigma Aldrich Fine Chemicals Biosciences Ethanol-water solution NIST(R) SRM(R) 2891, nominal mass fraction 0.02% | 64-17-5 | MFCD00003568 |
Ethanol-water solution NIST(R) SRM(R) 2891, nominal mass fraction 0.02% | Mol Wt: 46.07 | 64-17-5 | MFCD00003568 |
![Alkali Scientific DEPC [Diethyl Pyrocarbonate], 100 Milliliters](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000660957.jpg-250.jpg)
Alkali Scientific DEPC [Diethyl Pyrocarbonate], 100 Milliliters
Diethyl Pyrocarbonate (DEPC) is a reagent used to inactivate RNases in laboratory settings, providing an effective means for ensuring the integrity of RNA samples. This 100ml bottle is designed for use in molecular biology applications where RNA must be protected from enzymatic degradation during extraction, handling, or storage. DEPC is widely used in RNA isolation protocols, ensuring that the RNA remains intact for subsequent analyses, including gene expression studies and sequencing. It is commonly used in the preparation of buffers, water, and solutions for RNA experiments to prevent contamination by RNases, which could otherwise interfere with research accuracy.