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Volume 14 (1968)
- Issue 6 Pages 289-
- Issue 5 Pages 237-
- Issue 4 Pages 177-
- Issue 3 Pages 123-
- Issue 2 Pages 57-
- Issue 1 Pages 1-
Volume 14, Issue 4
Displaying 1-11 of 11 articles from this issue
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[in Japanese]1968 Volume 14 Issue 4 Pages 177-184
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSDownload PDF (1416K) -
[in Japanese]1968 Volume 14 Issue 4 Pages 185-197
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSDownload PDF (1206K) -
AI NAKANISHI1968 Volume 14 Issue 4 Pages 198-202
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSIn order to determine primary aromatic amines, the characteristic fluorescences of the compounds obtained by the reaction of the several amines with p-dimethylaminobenzaldehyde were measured. The concentration of p-dimethylaminobenzal p-chloroaniline and its relative fluorescence intensity showed a linearity. The relationship between Hammett's substituent constant of the substituents of the aromtic amines and relative fluorescence intensity of the benzalamine compounds of the amines was invstigated. The application of these observations to the micro-determination of aromatic amines was examined. Various types of aromatic primary amine were separated with paper chromatography and reacted with p-dimethylaminobenzaldehyde to form corresponding benzalamine compound, which was detected with ultraviolet lamp and determined in its quantity.View full abstractDownload PDF (561K) -
KINZO NAGASAWA, HISAE YOSHIDOME, JUNKO KISHI1968 Volume 14 Issue 4 Pages 203-206
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSA new method for quantitative analysis of cyclamate was described. Equimolar cyclohexylamine and inorganic sulfate were formed with the pyridine-catalyzed hydrolysis of cyclamate, and each of the hydrolytic products was estimated by the known analytical methods. The optimum conditions and the effects of various coexistent substances on this analytical method were investigated.View full abstractDownload PDF (461K) -
TOSHIYUKI ITO, HIROH IKEZAWA, OTOHARU ISHIZAKA1968 Volume 14 Issue 4 Pages 207-210
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSThe effect of food additives on tryptic hydrolysis of casein in vitro has been studied. Tryptic activity was commonly determined by the colorimetric method using Folin's reagent. This method, however, was not available in the presence of phenolic compounds. In order to organize a systematic assay by this method, the authors investigated available conditions for gel filtration to separate any obstructive compounds on colorimetry from hydrolyzates of casein. One ml of TCA filtrate containing phenolic compound was placed on Sephadex G-10 column (9×310mm), and elution was carried out with 0.05M NaCl. The first 5 ml of effluent was left out and the next 25 ml collected. This fraction contained all hydrolyzates of casein and no salicylate, no p-OH benzoate, and no ethyl p-OH benzoate. By this gel filtration method, the effects of Na salicylate (10-2M), ethyl p-OH benzoate (10-3M) and Na p-OH benzoate (10-2M), and by the usual method (Anson method), the effects of Na benzoate (10-2M), Na dehydroacetate (10-2M) and Na sorbate (10-2M) on tryptic digestion of casein were investigated. The effects of these additives on tryptic hydrolysis of casein were not found at least by these methods.View full abstractDownload PDF (562K) -
ATSUKO NISHIKATA, KEIKO TANZAWA, YASUSHI TAKEDA, TOSHIAKI OSAWA, TYUNO ...1968 Volume 14 Issue 4 Pages 211-216
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSIn order to establish a rapid method for the qualitative and quantitative analysis of mercury compounds in the human hair, the extraction of mercury compounds from the human hair with various acid was investigated, and it was revealed that the extraction can be achieved almost quantitatively with 0.5 N HBr at 37°. The dithizone method for the quantitative determination of mercury was successfully applied to the mercury compounds in the 0.5 N HBr extract after neutralization of the extract to pH 6.0. Inorganic and organic mercury compounds were separated by means of alumina column chromatography as their dithizonates and determined spectrophotometrically. The organic mercury dithizonates were then decomposed with silver acetate and the mercury compounds thus released were identified by thin-layer chromatography. The whole procedures were applied to the identification and the quantitative determination of mercury compounds in the hair of the patients of mercury poisonings.View full abstractDownload PDF (587K) -
KAZUTA OGURI, HIDETOSHI YOSHIMURA, HISAO TSUKAMOTO1968 Volume 14 Issue 4 Pages 217-220
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSA little modification of the methyl orange method for the estimation of morphine which was developed by Woods, et al., was investigated. p-Nitrobenzoyl morphine was used to make its methyl orange complex by Woods, et al. On the other hand, the present modification involves selective acetylation of morphine with acetic anhydride in the presence of sodium bicarbonate and the extraction of the product, 3-acetylmorphine with chloroform. The derivative was then estimated by complexing with methyl orange. This method could be applied to the estimation of morphine in biological fluid, urine or plasma. Estimation of morphine was not affected by normorphine which is one of the metabolites of morphine.View full abstractDownload PDF (567K) -
TAMIKO SUGIMURA, YASUSHI TAKEDA, TOSHIAKI OSAWA, TYUNOSHIN UKITA1968 Volume 14 Issue 4 Pages 221-224
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSThe ultraviolet irradiation of aldrin solution in hexane was found to yield gas-chromatographically six photolysis products. Three compounds (P-1, P-3 and P-6) out of those photolysis products were isolated by silicagel column chromatography and their structures were elucidated by means of IR, NMR and mass-spectrometry.View full abstractDownload PDF (501K) -
KENJI SATO, NOBUO ITO, MITSURU OKA1968 Volume 14 Issue 4 Pages 225-227
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSThe effect of irradiation on the tensile strength of the various surgical sutures, such as braid and twist silk, nylon monofilament, polyester (tetron) braid, and tetrafluoroethylen (teflon) braid, was investigated. The tensile strength of the sutures decreased with increasing irradiation dose, but the decreasing ratio of the strength of the sutures except teflon braid, irradiated at 2.5 Mrad in dry state, was less than 10%. A significant decreasing tensile strength of the teflon braid sutures was observed in the irradiation lees than 1 Mrad. On the other hand, water soluble extractive of irradiated silk sutures increased slightly with increasing irradiation dose.View full abstractDownload PDF (400K) -
SHUNJI ISHIKURA, CHIEKO SHIBUYA1968 Volume 14 Issue 4 Pages 228-230
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSThe analysis of mercury was carried out to clear the cause of occurence of poisoned patients caused by organic mercury around the Agano river. The mercury content was estimated photometrically from the mercury dithizonate which was isolated from dithizon extract of oxidative degradation product of samples such as soils, fishes and waters. It was found that the soils obtained near the draining exit of Shyowa Denko and Nippon Gas Kagaku were contained high amount of mercury, whereas the mercury was not detected clearly in any waters. Some fishes were also found to keep the high concentration of the total mercury and organic mercury.View full abstractDownload PDF (418K) -
MASAHIRO IWAIDA, IWAO KAWASHIRO1968 Volume 14 Issue 4 Pages 231-235
Published: August 30, 1968
Released on J-STAGE: May 30, 2008
JOURNAL FREE ACCESSIn view of the unique position of milk and milk products in human nutrition, FAO prepared in 1957 "Code of Principles concerning Milk and Milk Products" with the entire assistance of the International Dairy Federation. It contains the designations, definitions and standards for milk and milk products. Here, an explanatory note on the Code of Principles was given, comparing each article of the code with the domestic laws and orders.View full abstractDownload PDF (729K)
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