Niven is generally used as a boy's name. It consists of 5 letters and 2 syllables and is pronounced Ni-ven. In the U.S. in 2014, it ranked 11650 in baby name popularity for boys with 6 occurrences.
POLYCHLORINATED BIPHENYLS (PCBs) BY GAS CHROMATOGRAPHY. 1.0 SCOPE AND APPLICATION. 1.1 Method 8082 is used to determine the concentrations of polychlorinated biphenyls. (PCBs) as Aroclors or as individual PCB congeners in extracts from solid, tissue, and aqueous. matrices, using open-tubular, capillary columns with electron capt ure detectors (ECD) or electrolytic. conductivity detectors (ELCD).
Some of the methods used to achieve sterilization are: 1  Autoclaves: Highly effective and inexpensive. 2  Hot air ovens: Inefficient compared to autoclaves. 3  Ethylene oxide: Suitable for heat sensitive items but leaves toxic residue on sterilized items.  Low-temperature steam and formaldehyde: Effective for instruments with cavities or tubular openings.