A new Chrysanthemum plant named \u2018Yogrand Rapids\u2019 particularly distinguished by the light yellow ray florets with a greyed-red center, decorative type, fully double flower, medium green foliage, fast flowering response time, good stem strength, and excellent shelf-life. These components are provided for use in the treatment of the condition, for example, by using a sealant to form a seal around the matrix material when impregnated with the agent. A desolvator is employed to remove excess solvent from the atomized sample prior to injection into the spectrometer to avoid temperature reduction or extinguishment of the plasma by the sample.