Method of identification and quantitative analysis of primary andor secondary amine in a sample by mass spectrometry using stable isotope labeled internal standard is provided. The solution includes tools for use by channel site creators to customize the look, feel, and page design. In some embodiments, the particles have a median particle size of greater than 1 micrometer. Other embodiments of this invention include transgenic drought tolerant corn plants and corn plant cells, and methods of detecting drought tolerance genes and chromosome regions associated with drought tolerance in a plant genome. In the event of complete loss of both CF structures, data sharing group restart processing can reconstruct the CF structures from the individual member logs.