It is the amount a business charges above their direct cost. If your contractor has a 1.50 markup (which is reasonable for a remodeling contractor), that means that if the estimated cost for a job is $10,000, they'll multiply the $10,000 x 1.50 and arrive at a $15,000 sales price.ow many people who know little about business and even less about the costs of running a business will say, Oh, look at that crook. He is making $5,000 profit on my job.. Nope, not true.
Partition chromatography is often preferred for the latter, wherein an inert solid (often silica gel) is coated with a liquid phase. Hydrophobic interaction chromatography (HIC) is a special form of surface adsorption chromatography. The materials to be separated should be at least partially hydrophobic in nature.
Pyrolysisâgas chromatographyâmass spectrometry. From Wikipedia, the free encyclopedia. Pyrolysisâgas chromatographyâmass spectrometry is a method of chemical analysis in which the sample is heated to decomposition to produce smaller molecules that are separated by gas chromatography and detected using mass spectrometry.arge molecules cleave at their weakest points and produce smaller, more volatile fragments. These fragments can be separated by gas chromatography. Pyrolysis GC chromatograms are typically complex because a wide range of different decomposition products is formed.