Reference

Determination of amines in the atmosphere by FTD gas chromatography

Determination of amines in the atmosphere by FTD gas chromatography. Fukunaga, Kenichi; Kichiji, Kiyoshi; Furutani, Chozo; Hayada, Toshifumi (Yamaguchi Prefect. Environ. Pollut. Res. 75-50-3 and 124-40-3 are cas registry numbers. These chemicals are also mentioned in this article. Cent., Yamaguchi, Japan). Yamaguchi-ken Kogai Senta Nenpo, 8, 15-19 (Japanese) 1982. CODEN: YKSNDQ. DOCUMENT TYPE: Journal CA Section: 59 (Air Pollution and Industrial Hygiene) Section cross-reference(s): 80 MeNH2 (MMA) [74-89-5], Me2NH (DMA) [124-40-3], and Me3N .(TMA) [75-50-3] in air were detd. by gas chromatog. using 4 different columns; ASC-L for column I, Amipack 124 for column II, 5% Squalane [111-01-3] + 2% KOH on Chromosorb 104 [39429-20-4] for column III, and 15% diglycerol [59113-36-9] + 5% tetraethylenepentamine [112-57-2] on Chromosorb W + DMCS for column IV. Column I was suitable for sepn. of the 3, II for MMA, III for DMA, and IV for TMA. The method enables detn. of TMA from an 1-L air sample from a fish waste processing plant environment, and the TMA level was 6.9, 26, and 89 ppb for 3 sep. samples. .

Changes in organic constituents in river water during incubation

Changes in organic constituents in river water during incubation. Matsumoto, Genki (Fac. Sci., Tokyo Metrop. Univ., Tokyo 158, Japan). Water Res., 17(12), 1803-10 (English) 1983. CODEN: WATRAG. ISSN: 0043-1354. DOCUMENT TYPE: Journal CA Section: 61 (Water) A water sample from Tama River in the Tokyo was incubated 29 days in dark conditions at 25 ± 3° to det. the extent and rate of the degrdn. of org. constituents and changes in their compn. The majority (>95%) of n-alkanes, fatty acids, and sterols were degraded, although total org. C (TOC) and EtOAc-extractable org. C (EOC) remained in considerable amts. (>23;). The degrdn. of org. constituents occurred apparently in 2 or 3 steps. The rate consts. for the degrdn. of TOC, EOC, hydrocarbons, fatty acids and sterols for the 1st step were 0.090/day, 0.18/day, 0.082/day, 1.4/day, and 0.23 day, resp. The relative abundances of total fatty acids and sterols as TOC(EOC) decreased remarkably during incubation (0-11 days) from 7.18 to 0.28% and 0.46 to 0.07%, resp. (31.2-2.2% and 2.0-0.6%, resp.), whereas those of hydrocarbons were not significantly changed.Except for chemicals metioned above, 474-62-4 and 111-01-3 are also used. .