high-pressure liquid chromatography
101Direct-EI LC-MS interface — is a simple coupling technique between liquid chromatography and mass spectrometry (LC MS) developed by Achille Cappiello and coworkers.[1] It is based on the direct and efficient introduction of a liquid effluent into an electron ionization (EI) …
102mass spectrometry — or mass spectroscopy Analytic technique by which chemical substances are identified by sorting gaseous ions by mass using electric and magnetic fields. A mass spectrometer uses electrical means to detect the sorted ions, while a mass spectrograph …
103Melamine — This article is about the chemical compound. For the plastic also called melamine , see melamine resin. Melamine …
104Chemical ionization — (CI) is an ionization technique used in mass spectrometry.[1][2][3] Chemical ionization is a lower energy process than electron ionization. The lower energy yields less fragmentation, and usually a simpler spectrum. A typical CI spectra has an… …
105Pharmacognosy — is the study of medicines derived from natural sources. The American Society of Pharmacognosy [ [http://www.phcog.org/definition.html The American Society of Pharmacognosy ] ] defines pharmacognosy as the study of the physical, chemical,… …
106Vitamin C — This article is about ascorbic acid as a nutrient; for its chemical properties, see the article ascorbic acid; for other uses, see the disambiguation page. Vitamin C …
107Metabolomics — is the scientific study of chemical processes involving metabolites. Specifically, metabolomics is the systematic study of the unique chemical fingerprints that specific cellular processes leave behind , the study of their small molecule… …
108Van Deemter equation — The Van Deemter equation in chromatography relates the variance per unit length of a separation column to the linear mobile phase velocity by considering physical, kinetic, and thermodynamic properties of a separation.[1] These properties include …
1092008 Chinese milk scandal — For timeline of events in the contamination, see Timeline of the 2008 Chinese milk scandal. Stripped shelves in a supermarket in China as a result of the contamination (September 2008) The 2008 Chinese milk scandal was a food safety incident in… …
110Coffee — This article is about the beverage. For the bean it is made from, see Coffee bean. For other uses, see Coffee (disambiguation). Coffee A cup of black coffee Type Hot Country of origin …
