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25 巻, 1 号
選択された号の論文の11件中1～11を表示しています
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丹羽瀬 [タケシ]1979 年 25 巻 1 号 p. 1-12
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーIncreasing analytical routine tests for sympathomimetic amines (SMA) are now playing an important part for technical experts working in the prefectural police agencies, accompanying with the increased abuse of drugs like methamphetamine and amphetamine, since 1970. In recent years, fine technical and methodological resolution are often claimed for the purity test of seized SMA or the material sources of the drugs, in the detection of SMA and their metabolites excreted in human urine. These established high levels of the analytical criteria may have a validity as an evidence in the court. This article reviews recent methodological problems for the analyses of SMA and related compounds, the extraction and determination of the drugs, and their metabolites excreted in human urine.抄録全体を表示PDF形式でダウンロード (1157K) -
富田 伴一, 浜村 憲克, 小瀬 洋喜1979 年 25 巻 1 号 p. 13-18
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーFor the purpose of finding a control index of activated sludge, the time course patterns of nitritenitrogen content in the anaerobically treated activated sludge were tested. Four kinds of the time course patterns of NO2-N content were found, termed A, B, C, and D. In type A, NO2-N content increased and the NO2-N content after 5 hr was higher than the initial. Type B was similar to type A, but NO2-N content after 5 hr was lower the initial. In type C, NO2-N content decreased with time. In type D, NO2-N was not detected for 5 hr. When the condition of activated sludge became worse, the time course patterns of NO2-N content changed from type A, type B, and type C to type D, and as the condition recovered, the time course patterns changed from type D, to type C, type B, and to type A. The time course patterns of NO2-N content as a control index for activated sludge indicates the conditions of activated sludge as do SVI and removal rate of BOD, indices used commonly. The change of the patterns shows the change in the conditions of activated sludge more quickly than that of other indices.抄録全体を表示PDF形式でダウンロード (665K) -
石川 哲也, 小瀬 洋喜, 佐藤 孝彦1979 年 25 巻 1 号 p. 19-23
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーDigested night soil was treated with activated sludge and changes in the components were examined. In the actual plant, the BOD values decreased by the treatment, but the COD, protein, and carbohydrate contents did not. In the batch examination, oxygen uptake decreased but TOD and TOC values scarcely decreased, and COD values rather increased by the examination. From this evidence, it was assumed that the increase of COD values will be due to the presence of non-biodegraded substances and to the increase of the carbohydrate and non-carbon substances, especialy NO2-nitrogen and self-digested substances of the sludge.抄録全体を表示PDF形式でダウンロード (579K) -
竹下 隆三, 吉田 博1979 年 25 巻 1 号 p. 24-28
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーPolychlorinated naphthalenes (PCN) in human adipose tissues was determined. A sample was saponified with a ethanolic solution of potassium hydroxide and extracted with hexane. The extract was treated with concentrated sulfuric acid and then cleaned up by silica gel chromatography. After separation from PCB by polyamide thin-layer chromatography, PCN was identified by gas-liquid chromatography-mass spectrometry. PCN concentration in the adipose tissues obtained from 10 human subjects was determined by ECD-gas chromatography. The concentration showed several ppb levels, corresponding from 1/500 to 1/1000 of PCB concentration in adipose tissues. The number of substituted chlorine atoms in PCN molecules was not a factor for its acumulation in fat.抄録全体を表示PDF形式でダウンロード (526K) -
竹下 隆三, 吉田 博1979 年 25 巻 1 号 p. 29-33
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーPolychlorinated naphthalenes (PCN) in marine fishes caught by inshore fishery were determined by ECD-gas chromatography after clean-up procedures comprising the separation from PCB by polyamide thin-layer chromatography. Though most of fishes contained PCN at levels lower than 1 ppb, some of the fishes living near the mouth of a river contained a remarkable amount of the compound, showing several tens of ppb levels. The contamination of all the fishes tested indicated the wide-spread contamination of natural environment. From the concentration ratio of PCN to PCB in the fish and the previously reported human adipose tissue, it was assumed that fishes were the most important source of human contamination.抄録全体を表示PDF形式でダウンロード (566K) -
竹下 隆三, 吉田 博1979 年 25 巻 1 号 p. 34-38
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーAs planktons are in a food chain system, it is very important in the analysis of persistent substances in water samples whether or not the compounds in suspended solids comprising planktons can be determined. From this point of view, a method for the determination of polychlorinated naphthalenes (PCN) in water was investigated. A water sample was filtered through a cotton plug, and the filtered water was loaded on a column of dodecylbenzenesulfonic acid-binding polyamide. PCN adsorbed on the column was eluted with ethanol. After dilution of the eluate with water, PCN was extracted with hexane. The concentrated extract and the cotton plug containing suspended solids were saponified with a ethanolic solution of potassium hydroxide. After re-extraction with hexane, PCN was determined by ECD-gas chromatography. When PCN in sea water samples was determined by both of the proposed method and the extraction one, the individual value obtained by the former was always higher than that obtained by the latter. It was suggested that PCN in planktons as well as the compound dissolved in sea water samples was determined by this method.抄録全体を表示PDF形式でダウンロード (611K) -
城戸 浩三, 作間 忠道1979 年 25 巻 1 号 p. 39-43
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーA gas chromatographic method for the determination of trace amounts of formaldehyde in commercial clothing as its 2, 4-dinitrophenylhydrazone is described. For the quantitative formation of formaldehyde 2, 4-dinitrophenylhydrazone, concentrations of hydrochloric acid and 2, 4-dinitrophenylhydrazone were examined, and dichloromethane was chosen as the best extracting solvent. The recovery of the overall performance of this method was more than 95%, and the detection limit was 1 ppm. The present method was successfully applied to the analysis of a trace amount of formaldehyde in commercial clothing, not detected by conventional methods such as the acetylacetone method.抄録全体を表示PDF形式でダウンロード (571K) -
萩原 耕一, 与那覇 政憲, 伊藤 英美子, 坂上 米次, 鷲見 保幸1979 年 25 巻 1 号 p. 44-47
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーThe method of short-term BOD (biochemical oxygen demand) determination of sewage, polluted river water, and effluent from treatment plant was studied under the same experimental conditions as 5-day BOD test. The principle of the method is based on the regression equation derived from the fact that BOD changes linearly with incubation, in a shorter time, on biaxial-logarithmic graph, when a sufficient amount of seed was added to glucose-glutamic acid solution as substrate. Five-day BOD values calculated through the linear regression equation from BOD values on 0.1 and 1 day after incubation showed a good agreement with the results of standardized 5-day BOD test. The method may be suited to estimation of BOD of polluted water which contains higher levels of organic matter.抄録全体を表示PDF形式でダウンロード (564K) -
岡本 光美, 山田 不二造, 中村 晃忠1979 年 25 巻 1 号 p. 48-54
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリー1-Naphthlamine and 2-naphthylamine remaining in dyestuffs were analyzed with high accuracy and sensitivity by high-speed liquid chromatography (Hitachi 635 T Liquid Chromatograph) after tosylation of both. By elution with methanol : ethyl acetate : water (48 : 12 : 40, v/v) on a JASCOSIL SC-01, tosylated 1- and 2-naphthylamines were completely separated in only 20 min without gradient elution technique. The common and accurate detection of both tosylated naphthylamines was possible near 275 nm using an ultraviolet monitor. With this method, the amount of tosylated naphthylamines was measured within 1% error over the range of 0.02-6 μg, and the limit of detection was 0.02 μg.抄録全体を表示PDF形式でダウンロード (673K) -
MASAKO SADO, YUMIKO KAIHO, CHIZUKO MOURI, AKIRA SHIRAISHI1979 年 25 巻 1 号 p. 55-58
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーDirect Sky Blue 6B, a dyestuff used in leather, paper, and cloth industries, was decomposed by the cecal content of a guinea pig and the mixed culture of 4 kinds of bacteria (Escherichia coli, Proteus vulgaris, Pseudomonus aeruginosa, and Klebsiella pneumoniae). As the main product of the decomposition, o-dianisidine was detected, and this compound was assumed to be formed by the azo-reductive fission of the dye.抄録全体を表示PDF形式でダウンロード (495K) -
KUNISUKE NAGAMATSU, YASUMASA KIDO, GORO URAKUBO, YOSHITAKA AIDA, YASUK ...1979 年 25 巻 1 号 p. 59-65
発行日: 1979/02/28
公開日: 2008/05/30
ジャーナル フリーPercutaneous absorption of 14C-2-mercaptobenzothiazole (14C-2-MBT) was studied by applying it to intact and abraded skin of guinea pig. Of the dose 6.14% and 8.39% were excreted to urine of intact skin animals and 27.42% and 34.58% were of abraded skin animals for 24 and 48 hr after application, respectively. At 1 hr after a subcutaneous (sc) injection of 14C-2-MBT, high radioactive concentration was found in the kidney, thyroid and liver in this order. At 6 hr after injection, the highest distribution in kidney, next higher in thyroid and blood, and no distribution in brain were observed. At 15 min after sc injection, the greatest concentration was observed in the excretory organs such as gallbladder, kidney, bladder and lachrymal gland by autoradiography. The main excretion route was urine and 64% and 92% of dose were excreted in 1 and 6 hr after sc injection, respectively. Two metabolites, glucuronide and sulfate of 2-MBT, were identified in urine by thin-layer chromatography, and 7.62% of 2-MBT and 90.00% of conjugates were determined in the sampled urine during 6 hr after sc injection by isotope dilution method.抄録全体を表示PDF形式でダウンロード (1000K)
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