More specifically, a mass spectrometry method called GEMMA is used to determine PDI and MMD of PEG samples which provides more accurate measurements for high molecular weight PEG samples than prior known MALDI-TOF analysis.ケンプトナー, ジャスミン...
An unknown gas has a density of 1.686 g/L when the pressure is 2.503 atm and the temperature is 35.0 degrees C. What is the molecular weight of this gas? Gas X has a density of 2.60 g/L at STP. Determine the molar mass of this gas. ...
Multiply the number of ounces by 28.35 to determine the weight in grams. For a more exact calculation, multiply by 28.34952313. Multiply the number of troy ounces by 31.1 to convert the weight in grams. For a more exact calculation, as may be required for precious metals and gemstones, mult...
Molecular size is a measure of the area a molecule occupies in three-dimensional space. The amount of space any mass takes up in three-dimensional space is known specifically as its volume. Using algebra and the density formula discovered by Archimedes of Syracuse, one can determine the molecul...
ESI‑MS is electrospray ionization MS that produces ions using an electrospray where high voltage is applied to a liquid to create an aerosol. This method is used to determine the molecular weight of proteins, peptides, and other macromolecules [3]. This method is used at IDT over MALDI-...
The color of purple complex is directly proportional to the concentration of protein, but has nothing to do with protein molecular weight and amino acid composition, so it can be used to determine protein content. The range of determination was 1~10mg protein. The main interfering substances are...
The data is computed by NOAA (National Oceanographic and Atmospheric Administration) and the National Weather Service to determine the probability of temperatures relating to frost and freezes based on weather data for an area over the last 30 years. They compute the likelihood of a light frost (...
molecular weights and other ingredients, and laid the foundation for assessing potential risks and determining appropriate processing procedures. (2) Pay close attention to the hazard identification part can help identify specific hazards related to Sodium Metabisulfite, such as the possibility of releasing...
For a given element, the mass (in grams) of one mole is given by its mass number on the periodic table; the "molar mass" of a molecule is the sum of the molar masses of the elements in the molecule in the correct ratios. It is simple to determine the molar mass of elements and ...
A degree of polymerization is a key characteristic of polymers that determine physical properties of polymer materials, and it's easy to calculate.