Helium

The column was Rtx-5 capillary columns (60 m ´ 0.32 mm, 0.25 μm film thickness). Helium (He) was the carrier gas at a flow rate 1.0 mL/min. The GC was interfaced with (Perkin Elmer Clarus 500) mass detector operating in the EI+ mode. The mass spectra were recorded over 40-500 amu that revealed the total ion current (TIC) chromatograms…

In the beginning was pain. Or perhaps it was end that was suffused with pain, its distinctive indigo tint. Color of old bruises, color of broken pottery, of crumpled maps in evening light. But, no, not like them, ultimately. For although men have tried for thousands of years to find the right simile- and women too- ultimately pain is only like itself. (VD 3) So begins Chitra Banerjee Divakaruni’s novel The Vine of Desire. Divakaruni textures the experiences of Calcutta born and raised sisters,…

Chapter 2 LITERATURE SURVEY 2.1. Characteristics of Hydrogen Sulphide 2.1.1. Physical and Chemical Properties H2S is a colourless gas characterised by a rotten gas odour which is highly toxic. It is soluble in different liquids including water and alcohols. It is typically formed under deficit oxygen conditions in the presence of organic matter and sulphate compounds (WHO, 2003). Hydrogen Sulphide is also present in the atmosphere in the range of 0.0001-0.0002 ppm though it may vary with places…

smiling because you have sat in on my classes and you already know precisely my reasoning. When God created the universe He gave it a mass that was necessary for life to exist. If there were less mass in the universe, only lighter elements such as helium would be produced. If there were more mass, only heavier elements, such as iron, would be produced. The mass of the universe had to be precise to create a life supporting planet. Further an exact mass for the universe is necessary for the…