Fig. 2b shows an overlay of spectra (mass window from 3,000 to 5,000 Da) resulting from C-specific cleavage of the IGF2/H19 region. Signals representing methylation events at CpGs 6-8, 10-12, 15, and 16 of the IGF2/H19 region are shown.
To calculate the cost of the chromium. contained in this material, remember that chromic oxide is. 68.42% chromium. Consequently, 1 ton of this material then. contains between 0.287 and 0.308 ton of chromium yielding. a unit value of between $325 and $348 per ton of chromium.
Though small quantities of chromium+6 are found in nature, most of the chromium in this form is man-made. Chromium+6 is easily and rapidly reduced to chromium+3 by many chemicals and conditions, so it is not very stable in the environment.