Analytical Sciences
Online ISSN : 1348-2246
Print ISSN : 0910-6340
ISSN-L : 0910-6340
Search
Advanced search
OR
Browse
Search
Volume 1, Issue 4
Displaying 1-23 of 23 articles from this issue
Show all abstracts
    • |<
    • <
    • 1
    • >
    • >|
  • A Note on Our Society Journal, Bunseki Kagaku
    Hideo AKAIWA
    1985 Volume 1 Issue 4 Pages 305
    Published: 1985
    Released on J-STAGE: July 27, 2007
    DOIhttps://doi.org/10.2116/analsci.1.305
    JOURNAL FREE ACCESS
    Download PDF (70K)
  • Challenge of State Analysis: Identification of Solutes in Solution as Individual Entities or Assemblies
    Shizuo FUJIWARA
    1985 Volume 1 Issue 4 Pages 306
    Published: 1985
    Released on J-STAGE: July 27, 2007
    DOIhttps://doi.org/10.2116/analsci.1.306
    JOURNAL FREE ACCESS
    Download PDF (68K)
  • Determination of Trace Elements in Boron by Instrumental Photon Activation Analysis
    Toyoaki KATO, Kenzo NAGASE, Hiroko YOKOBAYASHI
    1985 Volume 1 Issue 4 Pages 307-311
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.307
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    An instrumental photon activation analysis has been developed for the determination of trace elements in boron samples. A simultaneous irradiation of the sample and multielement standards with 30MeV bremsstrahlung produced by a linear electron accelerator for 2-3 hours was applied to measure levels for up to 28 elements nondestructively with practical limits of detection ranging from 0.02 to 10μg. Degrees of inter-element interferences were evaluated. Analytical results for boron samples are presented.
    View full abstract
    Download PDF (332K)
  • Identification of Solid and Gaseous Inclusions in Glass by Laser Raman Spectroscopy
    Akio MASUI, Makoto NOSHIRO, Motoharu KURATA
    1985 Volume 1 Issue 4 Pages 313-319
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.313
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Laser Raman spectroscopy has been applied to the identification of solid and gaseous inclusions in glass. Both macro- and micro-Raman techniques are employed in this study. The measurements are non-destructive and solid inclusions are identified without any special sample preparation. As for bubble analysis, N2, O2, CO2, SO2, H2 and HCl were found as gas phase inclusions from a variety of sources. Frequently the gases inside bubbles consisted of two or more components. The minimum detectable size of SO2 bubble was 0.28mm in diameter. Sample analyses of fine deposits on the wall of bubbles are also reported.
    View full abstract
    Download PDF (492K)
  • Simultaneous Multielement Analysis of Total Diet Samples by Inductively Coupled Plasma Atomic Emission Spectrometry
    Kunio SHIRAISHI, Hisao KAWAMURA, Gi-ichiro TANAKA
    1985 Volume 1 Issue 4 Pages 321-325
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.321
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The purpose of the present study is to investigate the application of inductively coupled plasma atomic emission spectrometry (ICP-AES) to the direct, multielement analysis of total diet samples for major, minor and trace elements. Sodium, potassium, phosphorus, magnesium and calcium were first determined as major matrix elements in the ashed total diet sample using a polychromator with relatively high dispersion. These elements were determined within a relative error of 3 per cent. After performing the matrix matching between the sample and standard solutions with respect to acidity and the amount of major elements, thirteen minor and trace elements, i.e., iron, zinc, manganese, aluminium, strontium, copper, barium, chromium, nickel, molybdenum, cadmium, cobalt and yttrium, were measured. Of these, iron, zinc, manganese, aluminium, strontium, copper and barium were determined with a relative error of ca. 5 per cents, and chromium, nickel, molybdenum, cadmium and cobalt within 20 per cents. Recovery of the added standard was 100±5% for all the elements except cobalt and molybdenum.
    View full abstract
    Download PDF (313K)
  • An Application of Multi-Dimensional Capillary Gas Chromatography to Analysis of Petroleum Products
    Koichi SHIOMI
    1985 Volume 1 Issue 4 Pages 327-334
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.327
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A precutting Multi-Dimensional Capillary Gas Chromatograph (MDCGC) was made of a commercially available capillary GC only by making simple modification of its flow control units. The MDCGC system was applied to the selective determination of aromatic hydrocarbons in gasoline and kerosene. Gasoline was introduced into a polar precutting capillary column, on which aromatic hydrocarbons were more retained than the other hydrocarbons and removed by precutting operation. Paraffins, naphthenes and olefins which were introduced into nonpolar main capillary column were chromatographed without being interfered by aromatic hydrocarbons (except benzene and toluene). Kerosene injected to a nonpolar precutting capillary column was eluted out of it in the order of boiling points regardless of the chemical structure. The peaks of n-paraffins were used as the scale of classification. The aromatic hydrocarbons eluted between two n-paraffin peaks were isolated as a group and then separated on a polar capillary column. Aromatic hydrocarbons were separated and eluted after saturated hydrocarbons.
    View full abstract
    Download PDF (388K)
  • Application of Amino Acids as Eluents in Ion Chromatography
    O. A. SHPIGUN, I. N. VOLOSHIK, Yu. A. ZOLOTOV
    1985 Volume 1 Issue 4 Pages 335-339
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.335
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The possibility of utilization of monoaminocarboxylic acids as eluents in ion chromatography with suppression has been studied. Ion chromatographic behavior of valine, leucine, lisine, glicine, α-alanine, β-alanine and n-aminobenzoic acid has been investigated. Salts of acids are weak eluents, whereas salts of aminobenzoic acid are eluents of middle strength. The application of these eluents wakes it possible to increase the sensitivity of determination, in comparison with the use of mixture Na2CO3/NaHCO3, and to obtain accurate separation of mixtures of F-, Cl-, NO3-, SO42- and HPO42-.
    View full abstract
    Download PDF (219K)
  • Silver-Silver Cryptate(2, 2) Ion Electrode as a Reference Electrode in Nonaqueous Solvents
    Kosuke IZUTSU, Masatoshi ITO, Eiji SARAI
    1985 Volume 1 Issue 4 Pages 341-344
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.341
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A silver-silver Cryptate(2, 2) ion electrode (Ag/0.005M AgCryp(2, 2)ClO4, 0.005M Cryp(2, 2), 0.05M Et4NClO4- (S)//0.05M Et4NClO4(S)//) was studied with respect to its applicability as the reference electrode in acetonitrile (AN), propylene carbonate (PC), methanol (MeOH), dimethyl sulfoxide (DMSO) and N, N-dimethylformamide (DMF). The apparent formation constant of AgCryp(2, 2)+ and the potential of the AgCryp(2, 2)+/Ag electrode vs. ferrocene/ferricinium reference system, respectively, were 7.8 and -422mV in AN, 15.5 and -400mV in PC, 9.8 and -253mV in MeOH, 7.3 and -463mV in DMSO, and 9.9 and -466mV in DMF. The exchange current densities of the AgCryp(2, 2)+/Ag electrode were in the range of (3-5)×10-6A cm-2 in all the solvents. The electrode potential was not influenced by the total concentration of (AgCryp(2, 2)++Cryp(2, 2)), provided that the ratio of both species was kept 1:1. The effect of water on the potential was also relatively small. The disadvantages of the silver-silver ion reference electrode especially encountered in PC and DMF were removed with this electrode, and the potential was reproducible and stable enough in all the solvents.
    View full abstract
    Download PDF (253K)
  • Determination of Some Metal-EDTA Complexes by Capillary Type Isotachophoresis
    Keiichi FUKUSHI, Kazuo HIIRO
    1985 Volume 1 Issue 4 Pages 345-347
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.345
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    To establish the optimum conditions for the simultaneous determination of EDTA, Mg(II)-EDTA and Ca(II)-EDTA complexes by capillary type isotachophoresis, effects of the length of the precolumn and the main column, kinds of viscous agents, counter ions and terminating electrolytes, pH of leading electrolyte and the amount of sample injected into the analyzer were studied. The isotachophoretic separation was performed with analyzer equipped with a potential gradient detector. The migration current was i zitially set at 200μA and then changed to 100μA. The best result was obtained with a main column (40cm in length and 0.5mm in inner diameter) connected to a precolumn (4cm in length and 1.0mm in inner diameter) using a leading electrolyte containing 0.01M hydrochloric acid and 0.5% methyl cellulose buffered at pH 8.5 with tris(hydroxymethyl)aminomethane, and a terminating electrolyte containing 0.01M hexanoic acid. Under these conditions, Cu(II)-EDTA and Mn(II)-EDTA were also determined successfully. The error in the determination of the mixtures of these EDTA complexes was less than ±14%.
    View full abstract
    Download PDF (174K)
  • Diphosphonium-Type Liquid Anion-Exchange Extractants. Extraction of Anionic Metal Complexes
    Shunsuke IDE, Akira OHKI, Makoto TAKAGI
    1985 Volume 1 Issue 4 Pages 349-354
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.349
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The extraction of anionic metal complexes was investigated by use of diphosphonium-type liquid anion-exchange extractants, which bear two cationic centers at various distances within a molecule (R3P+-(CH2)n-P+R3: R=octyl, n=2-10; abbreviated as CnBP). When MIIX42- type anionic complexes of divalent metal ions (zinc(II), cadmium(II), and palladium(II)) were extracted, the metal extractability decreased in the order: C10-≈C6-C4-C3- C2BP monocationic extractants (R3R′P+, abbreviated as MP). However, in the extraction of MIIIX4- type complexes of trivalent metal ions (iron(III) and indium(III)), the extractability order was different: MP≈C10-≈C6-C4- C3-C2BP. The unique metal extraction selectivity of the dicationic extractants is discussed in terms of charge interactions within the extracted ion-pair complexes.
    View full abstract
    Download PDF (310K)
  • Automated Measurement System for Nitrate in Lake Water by Personal Computer
    Shin-ichi WAKIDA, Takashi TANAKA, Akinori KAWAHARA, Kazuo HIIRO
    1985 Volume 1 Issue 4 Pages 355-358
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.355
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    An automated chromatographic system for the determination of nitrate in lake water has been prepared in conjunction with a personal computer. The calibration curve in the concentration range of 0-200ppb nitrate-nitrogen was linear. The percent of standard deviation was 0.45% for 20 measurements of 40ppb nitrate-nitrogen solutions. The correlation coefficient between the results obtained by the proposed method and the Autoanalyzer method for 16 samples was 0.990. Nitrate at parts per billion level could be determined within 10min. Moreover, a quantitative range of nitrate measurement can be selected by changing the enrichment period of the sample solution. The results of continuous measurement of nitrate at Lake Biwa are reported in this paper.
    View full abstract
    Download PDF (227K)
  • Spectrophotometric Determination of Iron(II) by Extraction of Its Ion-Associated Complex with 3-(2-Pyridyl)-5, 6-diphenyl-1, 2, 4- triazine and Tetraphenylborate Anion into Molten Naphthalene
    Tohru NAGAHIRO, Katsuya UESUGI, Masatada SATAKE
    1985 Volume 1 Issue 4 Pages 359-362
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.359
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A spectrophotometric method has been developed for the determination of iron(II) via extraction of its ion- associated complex with 3-(2-pyridyl)-5, 6-diphenyl-1, 2, 4-triazine and tetraphenylborate anion into molten naphthalene. The optimum pH range for extraction of the complex is 1.9-5.9. The solid naphthalene containing the ion-associated complex is separated by filtration and dissolved in acetonitrile. Beer′s law is obeyed in the concentration range 2.0-23.8μg of iron in 10cm3 of acetonitrile solution. The molar absorptivity and Sandell′s sensitivity are 2.54×104l mol-1 cm-1 and 0.0022μg cm-2 at 553nm, respectively. Ten replicate analyses of a sample containing 11.9μg of iron give a mean absorbance of 0.542 with the relative standard deviation of 0.54%. The interference of various ions has been studied. The present method has been successfully applied to the determination of iron in standard alloy samples and metallic aluminum powder.
    View full abstract
    Download PDF (230K)
  • Liquid-Liquid Extraction of Some Class b Metal Ions with Thiacrown Ether 1, 4, 8, 11-Tetrathiacyclotetradecane
    Eiichi SEKIDO, Keiitsu SAITO, Yoshiaki NAGANUMA, Hiroko KUMAZAKI
    1985 Volume 1 Issue 4 Pages 363-368
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.363
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    Liquid-liquid extraction of some class b metals, silver(I), mercury(II), palladium(II) and cadmium(II) using thiacrown compound, 1, 4, 8, 11-tetrathiacyclotetradecane(TTCT) and picrate(Pic-) was stoichiometrically examined. Silver(I) and mercury(II) are extracted into 1, 2-dichloroethane as ion-pair compounds, [Ag(ttct)2]+Pic- and [Hg-(ttct)]2+Pic2- respectively. Palladium(II) is extracted into nitrobenzene as [Pd(ttct)]2+Pic2- or [Pd(ttct)2] 2+Pic2- depending on the concentration ratio of TTCT to palladium(II). The extraction constants for silver(I) and mercury(II) and also the distribution coefficient of TTCT in various solvents were determined. The extraction behaviors of these class b metals including copper(I) were compared and discussed in connection with the composition and the conceivable conformation of their extracts.
    View full abstract
    Download PDF (374K)
  • Coprecipitation of Calcium and Barium Carbonates by Carbon Dioxide Gas at 80°C
    Keiko YOKOFUJITA, Kazuyoshi TAKIYAMA
    1985 Volume 1 Issue 4 Pages 369-371
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.369
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    The coprecipitation of calcium and barium carbonates was investigated as a problem in analytical chemistry. Carbon dioxide gas was introduced into solutions of calcium and barium at 80°C. The particles produced were composed of rod-shaped, spindle-shaped and cubic-shaped crystals. The composition of calcium and barium in the reaction mixture changed with bubbling period of carbon dioxide gas. The shape of particles was dependent on the composition of residual calcium and barium in the reaction mixture. The particles were solid solutions of calcium and barium carbonates, whose crystal structures were a little different from each other.
    View full abstract
    Download PDF (231K)
  • Photometric Determination of Copper with 2-(5-Bromo-2- pyridylazo)-5-diethylaminophenol after Preconcentration with Amberlite XAD-2 Resin
    Yukio SAKAI
    1985 Volume 1 Issue 4 Pages 373-376
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.373
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A highly sensitive and selective method for the photometric determination of copper with 2-(5-bromo-2-pyridylazo)- 5-diethylaminophenol (5BrPADAP) is described. Copper in the sample solution is sorbed as its N-(dithiocarboxy)-sarcosine (DTCS) chelate onto Amberlite XAD-2 resin and stripped with a pH 9 borate buffer (0.2M) in 60% methanol. The copper-DTCS chelate in the eluate is decomposed with hydrogen peroxide, and copper is determined with 5BrPADAP. Almost all other metal ions do not interfere with the determination because they are masked with nitrilotriacetic acid, sodium pyrophosphate and EDTA, the resulting complexes not being sorbed on the resin. the method is successfully applied to the determination of copper in river water.
    View full abstract
    Download PDF (236K)
  • Gas Chromatographic Determination of Uric Acid in Serum with Uricase-Catalase System
    Keiko KOBAYASHI, Nobuko NARITA, Satoshi KAWAI, Shohichi KOUCHI
    1985 Volume 1 Issue 4 Pages 377-379
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.377
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A new method for the gas chromatographic determination of uric acid in serum using uricase-catalase system is described. This method is based on the combination of the enzymatic conversion of methanol into formaldehyde through the action of hydrogen peroxide formed from uric acid with uricase and derivatization of the resulting formaldehyde with pentafluorobenzyloxylamine. Suitable conditions for the use of uricase and influence of presence of co-existing compounds were investigated. The method is superior to the colorimetric method with respect to specificity and sensitivity. Linear calibration graphs passing through the origin were obtained in the range 8-200μg ml-1 uric acid in serum for FID and 1-12μg ml-1 for ECD using 0.1ml of serum.
    View full abstract
    Download PDF (170K)
  • Gas Chromatographic Determination of Trace Amounts of Hexamethylenetetramine in Water Using an Iodine Charge-Transfer Complex
    Minoru KOGA, Ryota SHINOHARA, Takashi AKIYAMA
    1985 Volume 1 Issue 4 Pages 381-384
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.381
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A highly sensitive gas chromatographic (GC) method for the determination of hexamethylenetetramine (HMT) in water was developed. HMT was quantitively extracted into CH2Cl2 forming a charge-transfer complex with iodine. The complex was decomposed by adding a methanolic KOH and liberated HMT was detected by GC equipped with a flame thermionic detector. The linear calibration curve of HMT was observed within the concentration range of 0.5-500μg/l in 100ml of the sample. The recovery efficiencies of HMT added to water at μg/l level were found to be 66-86% with relative standard deviation of 1.2-6.0%.
    View full abstract
    Download PDF (187K)
  • Direct Method for Determination of Valproic Acid in Serum by High Performance Liquid Chromatography
    Kazuko KONDO, Mikio NAKAMURA, Ryota NISHIOKA, Satoshi KAWAI
    1985 Volume 1 Issue 4 Pages 385-387
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.385
    JOURNAL FREE ACCESS
    Show abstractHide abstract
    A simple and rapid method for routine measurement of valproic acid in serum has been established by high performance liquid chromatography. To 0.2ml of serum sample is added 0.2ml of acetonitrile solution containing thymol as an internal standard (2μg ml-1). After centrifugation, a 20μl aliquot of the supernatant is injected directly into a liquid chromatograph. The chromatographic procedure utilizes a reversed phase ODS column with a mobile phase consisting of 0.05M phosphate buffer(pH 3.0)-acetonitrile-isopropanol (60:25:15) at a flow rate of 0.7ml min-1. Valproic acid was detected by UV absorption at 220nm. The calibration curve was linear from 20 to 120μg ml-1 valproic acid in serum. This method has been applied successfully to monitoring routine serum levels of valproic acid. The results agreed fairly well with those obtained by gas chromatography.
    View full abstract
    Download PDF (195K)
  • Extraction of Iron(III) with Crown Ethers from Hydrochloric Acid Solution
    Hideko KOSHIMA, Hiroshi ONISHI
    1985 Volume 1 Issue 4 Pages 389-390
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.389
    JOURNAL FREE ACCESS
    Download PDF (90K)
  • Ion-Interaction Chromatography of Sodium Dialkyldithiocarbamates on Hydrophilic Porous Polymer Column in the Presence of Tetraalkylammonium Salts
    Tadahiro TETSUMI, Masao SUMI, Minoru TANAKA, Toshiyuki SHONO
    1985 Volume 1 Issue 4 Pages 391-392
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.391
    JOURNAL FREE ACCESS
    Download PDF (112K)
  • Photometric Reagent for Sodium Ion Based on Crown Ether Complex Formation
    Yoshiki KATAYAMA, Hiroshi NAKAMURA, Makoto TAKAGI
    1985 Volume 1 Issue 4 Pages 393-394
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.393
    JOURNAL FREE ACCESS
    Download PDF (92K)
  • A New Degassing Device for High Performance Liquid Chromatography
    Tsunemi TOKIEDA, Toshio TOKUDA, Masanori ISHIDA
    1985 Volume 1 Issue 4 Pages 395-396
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.395
    JOURNAL FREE ACCESS
    Download PDF (99K)
  • Upside-down pH Glass Electrode for Acid Paper Analysis
    Shizuo FUJIWARA, Rokuro KURODA, Eiichi FURUYAMA, Nobuaki KONDO, Hideto ...
    1985 Volume 1 Issue 4 Pages 397-398
    Published: 1985
    Released on J-STAGE: June 13, 2006
    DOIhttps://doi.org/10.2116/analsci.1.397
    JOURNAL FREE ACCESS
    Download PDF (114K)
    • |<
    • <
    • 1
    • >
    • >|
feedback
 Top