生活衛生
Online ISSN : 1883-6631
Print ISSN : 0582-4176
ISSN-L : 0582-4176
31 巻, 1 号
選択された号の論文の7件中1~7を表示しています
  • 矢橋 弘嗣
    1987 年 31 巻 1 号 p. 1
    発行日: 1987/01/10
    公開日: 2010/03/11
    ジャーナル フリー
  • 河田 茂雄
    1987 年 31 巻 1 号 p. 2-16
    発行日: 1987/01/10
    公開日: 2010/03/11
    ジャーナル フリー
  • 馬場 二夫, 細川 守, 山田 明男
    1987 年 31 巻 1 号 p. 17-26
    発行日: 1987/01/10
    公開日: 2010/03/11
    ジャーナル フリー
    Identification and determination of volatile compounds in rubber products used at high temperatures were investigated. Forty-four rubber products used in contact with foods, such as nipples, pacifiers, packing for pressure cookers, hoses, spaturas, and 29 products used in medical supplies, such as stoppers for medicines, catheters, gloves for operations, were tested. The materials used for these rubber products were NR, IR, IIR, CR, NBR, EPDM, silicon rubber and others. One to five grams of the samples were put into a 50ml vial, and heated at 150°C for ten minutes in an oven. Nineteen compounds were identified from the volatile substances in the vial using mass spectrometry.
    Carbon disulfide and carbonyl sulfide were the main compounds, being detectable in most of the samples. Other major compounds were aldehydes, ketones, aromatic and organochloric solvents, and siloxanes.
    The maximum amounts of acetaldehyde, acetone, toluene, dichlromethane, 1, 1, 1-trichloroethane and octamethylcyclotetrasiloxane were 32.4, 29.8, 19.9, 41.8, 379.0, and 281mg/kg, respectively.
    Cabon disulfide was also released from most of the rubber products boiled in water, and 1.7 to 789mg/kg of carbon disulfide was obtained from twenty-four out of 45 rubber product specimens as a result of the treatment.
    On the other hand, it was found that thiurams and dithiocarbamates, such as tetramethylthiuram disulfide, zinc dimethyldithiocarbamate, the vulcanization accelerator of rubber released cabon disulfide, also when boiled in water. However, accelerators such as thiazols, guanidines, thioureas, and sulfenamides did not released any.
    It is important consequences from the standpoint of public health that the contamination of carbon disulfide into foods or medical drugs was able to be contained within a safe range, when thiurams and dithiocarbamates were used as vulcanization accelerator of rubber.
  • 牛草 寿昭, 丸山 武紀, 兼松 弘, 新谷 〓
    1987 年 31 巻 1 号 p. 27-30
    発行日: 1987/01/10
    公開日: 2010/03/11
    ジャーナル フリー
    Forty-eight cultured sea breams were obtained from eight sea regions mainly from the western part of Japan. Various tissues were separated from the fish, and the contents of tocopherol (Toc) were analyzed using high performance liquid chromatography.
    1) Toc, detected in any of the tissues of the sea bream, was only of the α-form, and its content had a tendency to vary according to the region which the fish were grown. Furthermore, the content of Toc in the liver correlated to a significant degree with that in the adipose tissue. In general, the contents of Toc in the liver and adipose tissue had a tendency to be higher that in any of the other tissues.
    2) In gonad of the sea bream, the content of Toc for the female group was suggested to be essentially higher than that for the male group, when compared by means of “exploratory data analysis”. However, in the liver or any of the other tissues, the content of Toc did not show such a tendency to become higher the growth in body length that was observed in the certain tissues of yellowtail in the previous report.
  • 畑山 二男
    1987 年 31 巻 1 号 p. 31-37
    発行日: 1987/01/10
    公開日: 2010/03/11
    ジャーナル フリー
  • 吉田 秋比古
    1987 年 31 巻 1 号 p. 42-46
    発行日: 1987/01/10
    公開日: 2010/03/11
    ジャーナル フリー
  • 神戸 保
    1987 年 31 巻 1 号 p. 47
    発行日: 1987/01/10
    公開日: 2010/03/11
    ジャーナル フリー
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