Steroid isolation , depending on context, is the isolation of chemical matter required for chemical structure elucidation, derivitzation or degradation chemistry, biological testing, and other research needs (generally milligrams to grams, but often more  or the isolation of "analytical quantities" of the substance of interest (where the focus is on identifying and quantifying the substance (for example, in biological tissue or fluid). The amount isolated depends on the analytical method, but is generally less than one microgram.  [ page needed ] The methods of isolation to achieve the two scales of product are distinct, but include extraction , precipitation, adsorption , chromatography , and crystallization . In both cases, the isolated substance is purified to chemical homogeneity; combined separation and analytical methods, such as LC-MS , are chosen to be "orthogonal"—achieving their separations based on distinct modes of interaction between substance and isolating matrix—to detect a single species in the pure sample. Structure determination refers to the methods to determine the chemical structure of an isolated pure steroid, using an evolving array of chemical and physical methods which have included NMR and small-molecule crystallography .  : 10–19 Methods of analysis overlap both of the above areas, emphasizing analytical methods to determining if a steroid is present in a mixture and determining its quantity. 
I’ve been using Tienchi, in powder form, for over 18 years (after suffering my 7th heart attack). It helped to clean all blood vessels and arteries of plaque – and has prevented it from re-forming. It’s also helped repair the damage from my attacks. I’ve always used it by placing the powder into warm water and drinking the mixture. I’m now 75 years old, and I realize that certain herbs aren’t as effective as we age, so I was wondering if I should increase the amount I take and if there would be more benefit to cook it (in 2 cups of water, reducing it to one cup), before drinking – or, for that matter, cooking the raw root (which I currently grind into the powder)??