Chromatography Directory Analytes by Type

Listed below are the analyte categories for some of the analytes found in application notes refered to in the directory. Click on a category name to see a list of analytes.
  1. Drugs
    Drugs, which can include both prescription and nonprescription pharmaceuticals are substances that can alter the way the body works or treat or prevent disease.
  2. Acids
    Acids (organic acids) are organic compounds containing the carboxylic, hydroxyl or phenol group.
  3. Amino Acids
    Amino acids are nitrogen containing compounds with both amino and carboxylic acid groups and are the basic building blocks of proteins and peptides.
  4. Enantiomers
    Enantiomers are optically active stereoisomers of molecules that are nonsuperimposable mirror images of one another differing only in the configuration about the chiral (center) atoms.
  5. Carbohydrates
    Carbohydrates are sugar containing molecules that act as the primary biological means of storing or consuming energy for animals and plants. They are mainly found in cereal foods, fruits and vegetables.
  6. Fatty Acids/Esters
    Fatty acids are carboxylic acids with a saturated or unsaturated aliphatic tail that are the basic unit of lipids. Esters are organic compounds formed when an acid and alcohol react and contribute to flavors and aromas.
  7. Catecholamines
    Catecholamines are neurotransmitters and hormones primarily secreted by the adrenal glands that have an effect on the nervous system, cardiovascular system, metabolic rate, smooth muscle, and temperature.
  8. PAHs
    PAHs also known as polycyclic or polynuclear aromatic hydrocarbons are organic compounds containing only carbon and hydrogen in the arrangement of a fused ring structure containing at least two benzene rings.
  9. Pesticides/Herbicides
    Pesticides are chemicals or biological agents used to control, repel, attract or kill pests. Pests are organisms that include insects and weeds that compete with humans for food, destroy property, spread disease or are considered a nuisance.
  10. Steroids
    Steroids are a class of lipids that serve as precursors for vitamins and function as hormones.
  11. Surfactants
    Surfactants are wetting agents that lower the surface tension of liquids allowing easier spreading, dispersion of solids, inhibition of foam and emulsification of mixtures.
  12. Polymers
    Polymers are large high molecular weight natural or synthetic organic molecules formed by the linkage of many smaller molecules known as monomers.
  13. Vitamins
    Vitamins are a class of unrelated organic compounds required in trace quantities by a living organism for the proper regulation of reproduction, growth, health and metabolism.
  14. Natural Products
  15. Herbal Medicines
    Herbal medicines are individual herbs or mixtures of herbs that are used for therapeutic value. They are derived from plants and plant materials.
  16. Fuels
  17. Phenols
    Phenols are weakly acidic water-soluble organic compounds consisting of one or more hydroxyl groups attached to an aromatic hydrocarbon group.
  18. Solvents
    Organic solvents, solvents other than water, are organic compounds that are liquids under standard conditions.
  19. Drugs, Herbal Medicines, Natural Products
  20. EPA Methods, Halocarbons, Hydrocarbons, Solvents
  21. EPA Methods, Acids